Datasets:

cwinkler

/

patents_green_plastics

like 1

a food container for preparing food in a microwave oven of plastic construction material that resists rupturing by its shape modification that is subjected to forces generated by the microwaving process .

a reusable plastic base serves as a pallet which may be lifted by the forks of a fork - lift truck . a sleeve is removably attached to the base and forms the sidewalls of the container . in the preferred embodiment , the sleeve is made of corrugated material having slots formed along its lower edge . the slots are adapted to coact with latch members slidably mounted in the base to releasably secure the pallet to the sleeve . the base is preferably designed with a peripheral groove lying substantially at floor level to receive the edge of the sleeve . compressive loads applied to the container are transferred to the sleeve directly to the floor , thereby minimizing deformation of peripheral portions of the base .

a friction stir welding pin having internal flow cavities . the pin is adapted to be driven by a conventional friction stir welding machine , and may include external threads for forcing plasticized material toward the weld root . an internal cavity located along the centerline and open to the distal end facilitates deformation of the workpiece material at the weld root . one or more flow channels extending from the sidewall of the pin to the internal flow cavity induce a continuous path of plasticized metal through the pin . the internal cavity may include internal threads to further help force plasticized material toward the root weld . the pin is particularly useful in welding aluminum work pieces where the tolerance of the workpiece thickness is not critical .

the present invention discloses a method for producing a clay / amo complex by modifying layered inorganic silicate clay with the intercalating agent amo . the amo is prepared by polymerizing polyoxyalkylene amine having molecular weight over 1000 , p - cresol and formaldehyde . the present invention also discloses a method for producing nanosilicate plates by extracting the amo from the above complex with a hydroxide or a chloride of alkali metal or alkaline - earth metal . the extracted amo can be recycled for reusing .

the invention relates to an enhanced recovery method that optimizes the stages of pumping , transport and surface treatment of the production effluent . the method of the invention comprises the following stages : injecting into said reservoir a sweep fluid comprising at least one polymer so as to displace said hydrocarbons towards at least one production well , collecting a production effluent comprising the hydrocarbons through production well , injecting into said effluent at least one degradation agent for said polymer .

the method aims at obtaining from waste and more particularly from municipal solid waste the energy contained therein at the highest level for industrial use by means of natural technologies and with low environmental impact . the method , denoted by the acronym new operates through the following process phases : a ) aerobic digestion of the putrescible biological part to produce stabilized waste which is easy to handle , b ) separation of a fraction rich in materials with a high heat value , c ) storage of the residue , rich in biodegradable and inert substances , compacted into appropriate geometrical shapes in bioreactors which can be activated and sealed , d ) activation of the bioreactors with water and their service in time during anaerobic digestion to supply biogas to be used for the production of energy , e ) bio - stabilization and dehydration of the residual material of the anaerobic treatment with air , f ) possible recovery of the materials produced in this way . in this way the energy contained in the waste , is extracted at the most refined level in the form of plastic , plastic / paper and methane for energy uses with maximum yield and reduced production of ash , and the end material leaving the bioreactors is fully exhausted of its energy content and inertised .

a container closure with a multiple layer liner . the liner comprises a nylon gas transmission barrier and a non - nylon layer bonded by an adhesive layer . the nylon gas transmission barrier may contain an additional passive gas transmission component comprising an in - situ polymerized inorganic clay . an additional active gas transmission component comprising a chemically reactive scavenger may be incorporated into at least one layer of the multiple layer liner . materials of the liner are selected for their process conditions and resulting resistance to degradation .

the present invention comprises novel preparations of polyoxypropylene / polyoxyethylene copolymers which retain the therapeutic activity of the commercial preparations , but are substantially free from the undesirable effects which are inherent in the prior art preparations . because the preparations of polyoxypropylene / polyoxyethylene copolymers which comprise the present invention are a less polydisperse population of molecules than the prior art polyoxypropylene / polyoxyethylene copolymers , the biological activity of the copolymers is better defined and more predictable .

an absorbable adhesive paste contains absorbable solid carboxy - bearing microparticles dispersed in a continuous phase of an alkoxyalkyl cyanoacrylate . the paste may contain a soluble absorbable polymeric viscosity modifier and at least one bioactive agent to maximize the effective application as a cover for compromised tissues and wounds or as sealants , blocking agents , or hemostatic agents .

a method for making a collated fastener assembly includes the steps of arranging a plurality of fasteners each having a head and a tip , in a row parallel to one another , the fasteners being arranged in a plane . the plurality of fasteners are preheated to elevate the temperature of the fasteners and a molten polymer material is applied onto the preheated plurality of fasteners . the fasteners , maintained in the plane , are conveyed with the molten polymer thereon between a pair of forming wheels . the molten polymer material is molded onto the preheated fasteners and between adjacent fasteners to form a plastic molding having a collar encircling a shank of each fastener and a connecting portion between adjacent fasteners . a cooling vapor is sprayed onto the fasteners and the plastic molding as the fasteners and the plastic molding exit from between the molding wheels . a gaseous cooling stream is forced over the fasteners and the plastic molding to cool the strip to form the fastener assembly .

a bag of mesh - type synthetic material or natural fabric , which allows that items contained in a container such as a supermarket trolley or basket are stored thereon and removed easily by facilitating the transport thereof with no use of plastic bags . an advantage of this type of mesh bags is that they bear a higher load without breaking itself and can be cleaned with little amount of soap and water , and can be made with recycled materials .

a mold is provided with a pair of cavities interconnected by a runner to a common entry point . one of the cavities is gated whereby plastic may be injected into this cavity only by applying ultrasonic energy to the gate .

this invention relates to a quick method for preparation of photorcactive polymers and immobilization of biomolecules onto these polymers . particularly , this invention relates to a microwave - mediated rapid and efficient method for the preparation of photoreactive polymer having at least one photoactivable functional group capable of forming a covalent bond with the biomolecule in a photochemical reaction . any matrix either organic or inorganic having a nucleophilic group preferably , amino , hydroxyl or thiol group can be modified by the invented method . immobilization of biomolecules onto the photoreactive polymers was carried out by uv radiation . the method has applications for inmmobilization of bio - molecules irrespective of their functional groups in the fields of molecular biology , proteomics , genomics , diagnostics , chemical or biochemical industry and other related fields .

an improved plastic bag sealing apparatus comprised of an improved heater formed of a heating wire embedded in a silicon rubber material . the heater is shaped to conform to the flat planar surface of a t - bar shaped heating element , and clamped in place with insulators to provide maximum transfer of heat to the heating edge formed by the web portion of the t - bar . the containment of heat and transfer of maximum heat to the t - bar permits a substantial improvement in thermal efficiency and a substantial reduction of power consumption . the heating edge of the t - bar is covered with an easily replaceable heating channel coated with a non - stick , heat resistant material such as polytetraflouroethylene .

a method for oxidatively breaking down organic compounds that have low biodegradability and are difficult to oxidize chemically in aqueous effluents , by using a water - soluble peroxide oxidant in the presence of a water - soluble iron or manganese metallophthalocyanine immobilized on an ionic resin consisting of a cross - linked insoluble copolymer derived from a vinylaromatic monomer comprising cationic or anionic groups . the method is particularly suitable for oxidatively decomposing polyhalogenophenols and halogenated hydrocarbons .

an improved rotary filter is cylindrical in shape , and operates by vacuum suction or otherwise to withdraw fluids from a substance exposed to the outer area of the device , drawing said fluids into the filter to be pumped out to a suitable reservoir . it includes an inner cylindrical surface having attached thereon a plurality of selectively spaced support structures which extend longitudinally along the inner cylinder . said support structures are covered with a plastic covering adapted to receive a filtering medium which forms the outer circumference of the rotary filter . in one embodiment the plastic covers are grooved to receive a spirally wound wire to further support said filtering medium .

a container transport system for transport of an article , in particular a baggage item , includes a container for receiving an article , with the container made of flame - resistant , wear - resistant and translucent plastic material which is stable in shape . the container has an underside which is formed with touch surfaces extending in a transport direction by which the container is advanced by a conveyor between a receiving end and a discharge end . the conveyor is provided with a guiding and / or driving engagement assembly for cooperation with the touch surfaces of the container .

a reusable plastic base serves as a pallet which may be lifted by the forks of a forklift truck . a sleeve is removably attached to the base and forms the sidewalls of the container . in the preferred embodiment , the sleeve is made of corrugated material having slots formed along its lower edge . the slots are adapted to coact with latch members slidably mounted in the base to releasably secure the pallet to the sleeve . the base is preferably designed with a peripheral groove lying substantially at floor level to receive the edge of the sleeve . compressive loads applied to the container are transferred to the sleeve directly to the floor , thereby minimizing deformation of peripheral portions of the base .

a method and apparatus for applying a polymer coating on an elongated substrate , preferably an elongate intracorporeal device in the form of a guidewire . an extrudable polymer cartridge is moved by a cartridge advancement mechanism into a guide chamber which is heated at an end with a die or orifice through which a desired portion of a guidewire may pass and be coated . parameters such as guide chamber temperature , pull speed and force exerted by the cartridge advancement mechanism may be controlled with a computer program in order to achieve repeatable results . the guide chamber , extrudable polymer cartridge , die , and push tube may all be made from polymer components which can be reused or disposed of after a single use . the extrudable polymer cartridge may have a variety of configurations including multiple layers of different materials , eccentric shapes , multiple lumens for multiple elements to be drawn through and coated and asymmetric disposition of different materials with respect to the longitudinal axis as viewed in a transverse cross section which can give bending properties having a preferred direction in the coated guidewire or device .

provided is an apparatus for detecting biopolymers capable of total analysis including non - reacted samples without complicated operations such as washing . a dna probe is fixed to one of electrodes and direct current voltage is placed between the electrodes , so that it becomes possible to separate complementary strand sample dna and non - complementary strand sample dna . by analyzing from a ratio in the whole reaction system , it is possible to obtain clearer results . further , by using electrophoresis by gel together , it is possible to separate reacted samples and non - reacted samples to perform measurements therefor in the same reaction field .

herein , the synthesis of n , ndiallyl morpholinium monomers and polymerization of the same to form rings at high yield and purity are explained . the process involves the synthesis of n , ndiallyl morpholinium bromide and chloride and subsequently partially or completely exchanging their anions with borate , p - toluenesulfonate , oleate , and acetate anions . the cyclopolimerization of monomers yields water soluble polymers carrying quaternary ammonium groups in each repeated unit , whose aqueous solutions act as a bactericide solution . these solutions are advantageous in preparation of antibacterial formulations intended for domestic use . the polymer with bromide and borate anions is an efficient antibacterial which is able to kill “ pseudomonas aeruginosa ”, the hardest hospital bacterium to cope with , as well as various common bacteria . these formulations are suitable for producing bactericide wet wipes and forming abacterial surfaces and , when combined with air conditioners , generating bacteria free air .

a high performance thermoplastic hose useful as a power steering hose , the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine - containing polyolefin such as chlorinated polyethylene , chlorinated polypropylene , chlorinated copolymers containing ethylene and propylene , chlorosulfonated polyethylene , chlorosulfonated polypropylene , chlorosulfonated copolymers of ethylene and propylene or mixture thereof , is disclosed . also disclosed are a method for manufacturing the high performance thermoplastic hose , and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300 ° f .

a two - piece adapter for rotatably connecting two fluid transport members , the adapter including a stem for one of the members , and a connector for the other member . the connector has a collar which is wrapped around the flange to capture the stem . the collar is deformed to wrap around the flange after the flange and the collar are joined . preferably the adapter is made of a plastic , transparent material .

the present invention relates to a method for producing man - made devices which have the properties and functions of biological membranes and membrane proteins , and to the structure of such devices . briefly , in one aspect of the invention , natural or genetically engineered proteins are incorporated into a polymeric vesicle that is conjugated to a thread to form a vesicle - thread conjugate . the engineered protein is preferably a transmembrane protein embedded in the wall of the polymeric vesicle . the vesicle - thread conjugate is then formed into a membrane or thin fabric having a wide variety of inherent functionality , including the ability to selectively transport and / or filter compounds between fluids . by selecting proteins with specific properties , membranes can be fabricated with a defined functionality including molecular scale addressability via directed electrostatic , electromagnetic , and chemical forces .

production line and method for manufacturing strips of foil stabilized plastics moldings featuring a rotary reform machine that has a pair of reform wheels that are rotatably driven to profile the extrudate while matching the output speed of extrudate exiting from the extrusion die of a plastics extruder . the wheels have equal diameters and are motor driven at the same angular velocity so that forming dies in the wheels synchronize and cooperate to pressure mold spaced sections of the extrudate feeding therethrough to form high quality end corners with an offal section therebetween . a haul - off pulls the strip from the extruder die , the rotary reform machine , a water trough and flash trimmer and into a cutter where the offal is removed . the strip is maintained under a predetermined tension load by use of an adjustable friction brake on the stabilizer foil so that the heated plastics exiting the extruder will be uniform in initial profile , providing high quality extrudate feeding into the reforming wheels .

the invention relates to a method of cultivation of algae or cyanobacteria in the presence of a luminous material that converts light of a first wavelength to a second wavelength more suitable for use in photosynthesis by the algae or cyanobacteria , and apparatus for performing the method . in one embodiment the apparatus is of flexible plastic with fluorescent light concentrator or light guide and perforated pipe for bubbling carbon dioxide through the culture . the algae or cyanobacteria may be used to produce biofuels .

storage - stable metal - fueled pyrotechnics and methods for manufacturing such compositions are provided . these are manufactured by granulating a mixture of liquid cyclohexane , powdered metal fuel , optional teflon ® powder , and at least one ethylene and vinyl acetate co - polymer , together to form a storage stable powdered metal fuel effectively coated with ethylene and vinyl acetate co - polymer . this provides pyrotechnics with superior resistance to degradation induced by atmospheric moisture , and having other improved properties . the powdered metal fuel includes , for example , powdered magnesium .

a process of extrusion molding plasticized vulcanizable or cross - linkable rubber or synthetic resin materials , comprising the steps of heating said materials to an elevated temperature in a short time immediately before a molding die and vulcanizing or cross - linking the materials in the manner of maintaining said elevated temperature substantially while the materials are passing through the die or for a while after they have passed through the die , thereby obtaining mold goods .

an image projector that drops into the accessory slot of a luminaire and projects high quality images printed on plastic slides in full color and photographic detail for extended time periods without heat degradation . the projector comprises a cooling fan , infrared and ultraviolet light filter means , and an inexpensive and removable slide assembly comprising a plastic image slide , a protective film slide and at least one mounting plate . the cooling fan is combined with layered , reflective filters to create a protected environment for the plastic image slide to survive the extreme heat at the gate of today &# 39 ; s efficient luminaires . the plastic image slide is created on a plastic sheet using conventional computer printing technologies .

a rigid , durable construction material is described along with a method for making the material . the material is particularly characterized by having a specific , textured surface which can resemble stucco and which can be reproduced exactly any desired number of times . the unique surface characteristics of the invention are obtained by preparing a reusable mold which is obtained by a reverse casting of a polymeric gel onto a cellular foam surface . the construction material of the invention is essentially a laminated , rigid backing having a polymeric surface coating with the desired texture obtained by casting a polymeric gel onto the reusable mold .

a novel plastic composition , and process of its preparation and application , are disclosed having particular utility in providing metal castings or the like with bubble - free , highly inert , plastic linings or coatings . the predominant portion of the novel composition comprises a perfluoroalkoxy side chain modified fluorocarbon polymer but also includes , in effective minor amount , metallic tin and preferably also additional oxidation or degradation stabilizers .

an ampoule opener assembly comprising a first ampoule opener having an elongated sidewall and a first cavity where the first cavity is configured to fit over at least a portion of an ampoule , a second ampoule opener having an elongated sidewall and a second cavity , where the second cavity is configured to fit over at least a portion of an ampoule , where the first ampoule opener is attached to the second ampoule opener by one or more strips . the first ampoule opener and the second ampoule opener may each further comprise a first plastic housing section and a second plastic housing section . the first plastic housing section , the second plastic housing section , or both , may comprise a rib circumscribing the inner surface of the first or second plastic housing sections . the first plastic housing section may be coupled to the second plastic housing section by a hinge .

the present invention provides a method for a customer to interact with a computer system over a computer network for specifying custom decoration of a plastic food service article . a computer - assisted decorating machine then processes the customer input and customizes the food service article according to the customer input . thereafter , the customized article is delivered to the customer . creation of customized and / or personalized designs is rendered feasible by providing readymade templates for a variety of events and occasions . in embodiments , the computer - assisted decorating machine is a laser marking system , and the food service articles are made from a plastic material that discolors when irradiated with a laser beam . the markings can emulate silver , gold , or pewter without applying metals , inks , or coatings to the plastic articles , and laser marked plate products can resemble decorated china plates or other permanent ware articles .

inorganic polymers are produced from silicate and / or phosphonate bonds , commonly found in rocks and glass , to create new polymeric materials for rubbers , fibers , and plastics . these inorganic polymers have various advantages over organic counterparts including abundance on the earth &# 39 ; s crust , and properties including nonflammability , low toxicity , recyclability , and excellent thermal and chemical resistance .

at least two thermoplastic polymers in a divided state are stirred to produce a homogeneous thermoplastic material . the polymers are inserted into the enclosure and stirred by the blades of the rotor , whereafter the resulting homogeneous material is discharged through the outlet . a sharp increase in the power consumption of the engine indicates that the material has become homogeneous .

the instant invention involves the use of a combination of preparatory steps in conjunction with mass spectroscopy and time - of - flight detection procedures to maximize the diversity of biopolymers which are verifiable within a particular sample . the cohort of biopolymers verified within such a sample is then viewed with reference to their ability to evidence at least one particular disease state ; thereby enabling a diagnostician to gain the ability to characterize either the presence or absence of said at least one disease state relative to recognition of the presence and / or the absence of said biopolymer , predict disease risk assessment , and develop therapeutic avenues against said disease .

the present invention discloses a method , device , and kit to non - invasively sample epidermal cells of a test subject while ensuring the collection of a large enough quantity of cells for subsequent biological testing . in particular , the method obtains human , or other living creature &# 39 ; s , nucleic acid or other biological component for cytological or diagnostic testing and / or genetic analysis . the method takes the sample of the epidermis by means of an abrading surface which scrapes off and retains cell samples for subsequent characterization . the abrading surface could be single use , in a sealed container , where the sample can be returned without contamination . these nucleic acids can be either eluted or resolubilized off , or otherwise released after collection or storage , in a manner that enables them to be amplified by conventional amplification methods such as polymerase chain reaction . also provided are devices for storing dna and a kit for easily obtaining and stably storing a sample of epidermal cells and / or other dna bearing material .

monolithic cartridges including a plurality of nominally aligned polymer fibers can be used as stationary phase materials for liquid chromatography separations . bundles of fibers are packed together so as to form capillary channels between the fibers . different polymer compositions permit the “ chemical tuning ” of the separation process . the fibers can be physically or chemically bonded at spaced locations throughout the cartridge or can be packed together under pressure by use of an encasing wrap to form the capillary channels . use of fibers allows a wide range of liquid flow rates with very low backpressures . applications in hplc , cap - lc , prep - scale separations , analytical separations , waste remediation / immobilization , extraction of selected organic molecules / ions from solution , purification of liquid streams , selective extraction of cell matter and bacteria from growth media , and immobilization of cell matter and bacteria are envisioned .

a biocide containing laminate for use in the construction of a wide variety of products . a preferred product is a pouch or other container for forming an envelope protectively packaging a product such as a flowable or solid food substance . the pouch is fabricated from a paper - plastic laminate sheeting whose plies have different properties that depend on package requirements , at least one ply in the laminate being an oriented , synthetic plastic film of high tensile strength . the plies are adhesively laminated at ambient temperature with a water - based adhesive whereby the orientation of the film is unaffected by the laminating process , in the course of which no environmentally objectionable fumes are discharged into the atmosphere . the biocide is associated with the paper material or water - based adhesive of the laminate in an amount sufficient to render it resistant to attack from organisms . the plastic film protects and retains the biocide in the laminate . the laminate may be made into an organism - resistant tape , a water - resistant envelope , or a package for mailing various materials .

a plastic display case which may be assembled from essentially flat components is provided with a castellated tongue and groove construction . this particular construction allows extremely high stacking strength to be provided from a relatively thin gauge material .

an improved multipack container is provided for accommodating a plurality of cathode ray tubes during transportation and storage . the altered construction includes basic top and bottom rigid closure members formed of flame retardant plastic material . positioned peripherally therebetween are two substantially u - shaped edge - oriented areal support members , such being opposingly located between the superjacently related ledges of the respective closure members . since the forward portions of the u - shaped supports do not meet , a beneficial window opening is provided on either side of the multipack structure . internal supportive and protective structural means are predeterminately located between the closures in a manner spaced from the peripheral support members . upon assembly of the multipack container and placement of the tubes therein , a tight covering of plastic material is applied to contiguously encompass the complete multipack to provide a unitized assemblage . the reinforced construction effects a firmly secured multipack having flame retardative features , improved structural rigidity and enhanced protective characteristics .

a paint spray gun in which its nozzle , nozzle - gun adapter and paint inlet fitting are all formed by a single plastic nozzle unit , and its air cap is also a one - piece plastic molding . minor molding inaccuracies in these parts are corrected by thin section nozzle unit walls that engage portions of the air cap .

this invention is directed to an improved thermoplastic coated paperboard carton commonly employed in the packaging of milk , orange juice , and other dairy and juice products . a novel gable - top closure having an upstanding ridge with a recessed upper edge will permit a stacked carton to be supported at the ends of the ridge of the supporting carton instead of the central portion thereof to reduce damage at the bottom area of the supported carton caused by rubbing during transport .

an improved flexible towpreg article and a method of production therefor . the improved flexible towpreg article comprises a prepreg which comprises reinforcing filaments and matrix forming material comprising recycled plastics ; the reinforcing filaments being substantially wetout by the matrix forming material such that the towpreg plies have a low void content compared to the multiply towpreg . the method of production for the improved flexible towpreg article includes the steps of spreading the reinforcing filaments ; coating the reinforcing filaments with the matrix forming material in a manner causing interfacial adhesion of the matrix forming material to the reinforcing filaments ; forming the prepreg by heating the matrix forming material contacting the reinforcing filaments until the matrix forming material liquefies and coats the reinforcing filaments ; and cooling the prepregs in a manner such that substantial cohesion between neighboring towpreg plies is prevented until the matrix forming material solidifies .

a composition useful for reducing serum glucose levels by an oral controlled release system and a method for treating diabetes in a human being by controlling the blood glucose level and reducing the complications associated with diabetic hyperglycemia and also the long term management of non - insulin dependent diabetes mellitus by avoiding the problems associated with the tight control of bgl , i . e ., hypoglycemia tolerance and seizures . the composition is directed to a solid , hydrophilic matrix controlled release oral dosage form where the dosage form contains a therapeutically effective amount of antidiabetic drug in the matrix ensuring complete bioavailability of the drug from the matrix of the tablet . the formulation undergoes substantially or approaches zero order release of active drug and the concentration of the excepients and the water swellable polymers is chosen in such a way that the erosion or dissolution rate of the polymer is equal to the swelling rate of the polymer to get a constant release . also , the concentration is chosen in such a way that the tablet will be fully dissolved at the same time the last of the drug is released and in addition a bioadhesive polymer may also be added to increase the residence time of the dosage form in the g . i . t . and at high concentration of the polymer , beta cyclodextrin may also be added to improve the release kinetics .

a biodegradable microfiber absorbent comprises a substantially homogeneous mixture of at least one hydrophilic polymer and at least one biodegradable polymer . the absorbent can be prepared by an electro hydrodynamic spinning of a substantially homogeneous polymer mixture . medical dressings for burns and wounds , cavity dressings , drug delivery patches , face masks , implants , drug carriers that comprises at least one microfiber electrospun from a polymer mixture are provided . the dressings can have variable water vapor penetration characteristics and variable biodegradation times .

a fluid coupling assembly which has a novel female subassembly capable of receiving a male portion , the female subassembly being formed by spin welding two generally cylindrical plastic parts together , one of the parts being a quick connect end portion and the other part being the barb end portion . the female subassembly is provided with a key or keyway to prevent rotation , to mate with a corresponding key or keyway on the male portion to prevent false connections , and to act as a clear visual aid for orientation . in this design differing barb end portions can be secured to a common quick connect end portion .

the invention relates to a system for preventing the tampering and re - packaging of containers made from glass , plastic or other materials , taking the form of a device having a double wall of glass and a series of mechanisms ensuring that the double wall is stained at the moment the bottle is opened . the main advantage of the device is that since the ink is released inside a double wall of glass , the person can see in real time if the bottle is from the company , without opening the bottle and prior to consuming the product contained therein . an additional advantage is that the ink is totally isolated from the product by means of one of the glass walls , such that the composition of the product is not altered by the components of the security ink .

this device for inductively heating and fusing thermoplastics includes an alternating current passing through a tank circuit , the inductor member of the tank circuit being wrapped around a curved pole piece of a ferromagnetic material . the magnetic flux arising within the inductor coil member flows to the ends of the pole piece and into a screen placed between the materials to be joined . the flux induces a current in the screen , and heat is generated to melt the thermoplastics together . because only 30 - 150 watts of power are passed through the tank circuit , a wire which will remain cool under operational wattage may be selected , making air or fluid cooling unnecessary .

a method of adding or removing a gas to or from a solution of the gas in a liquid involves transferring the gas between the liquid and another fluid through a membrane unit . the membrane unit includes a membrane which is substantially impermeable to the solvent and having a permeability to oxygen of at least 100 barrers ; formed from an amorphous copolymer of perfluoro - 2 , 2 - dimethyl - 1 , 3 - dioxole ; and is maintained at a temperature below the glass transition temperature of the copolymer . the fluid can be another liquid or a gas . the novel method provides very high rates of gas transmission between liquids and permits gasifying liquids without resort to sparging bubbles through the liquid . the method thus can gasify liquid with superior efficiency and without excessive agitation due to bubbling . these features result in economy of gas consumption and reduced need for gas recovery equipment , and when used in connection with a toxic or organic gaseous component , reduced requirements for additional pollution control equipment . the membrane material is resistant to fouling by liquids , and especially , by bioreactor mass . hence , the novel method can remain in service for long duration without substantially diminished performance . utilities for the novel method include purifying drinking water through ozonolysis , oxygenating bioreactors and blood ; oxidizing volatile organic compounds in water ; adding gaseous reactants to liquid chemical reactions and supplying oxygen to and removing volatile pollutants from waste water .

the invention relates to the identification of polymer materials on the basis of the fluorescence decay time of the intrinsic fluorescence of the polymer materials for definite sorting in a completely separated manner . the invention further relates to marking with fluorescent dyes , which , because of the specific fluorescence decay times of the fluorescent dyes , can further increase the sorting reliability by means of redundancy and can be used to identify particular batches .

the present invention relates to polymeric compositions useful in the manufacture of biocompatible medical devices . more particularly , the present invention relates to certain cationic random copolymers capable of polymerization to form polymeric compositions having desirable physical characteristics useful in the manufacture of ophthalmic devices . such properties include the ability to extract the polymerized medical devices with water . this avoids the use of organic solvents as is typical in the art . the polymer compositions comprise siloxane prepolymer containing pendant and end - capping cationic and polymerizable groups .

the present invention describes a die to manufacture pieces of plastic materials , molded by injection , projection or blowing processes that does not need end finishing during its construction , and that does not need to employ additional demolding agents during its whole useful life to release the objects molded . said die is specially useful to obtain pieces of plastic materials that must be painted or must be dealt superficially with the purpose of being employed in various industries , such as the automobile industry , electro - domestic accessories manufacturing , communications , computers , or decoration , etc . this die is also specially useful to obtain pieces that must be adhered in an efficient and substantially permanent way to others as are the soles for the industrial manufacturing of shoes and of sports shoes . there are also described the methods to manufacture or repair the dies , together with a process to prepare the silicon rubber by addition , herein referred to as srba , which is modified to be useful in said methods .

method and apparatus for sorting plastic materials on a recycling operation wherein near and infrared energy illuminates particles of flake plastic including such as pet , pvc and ps transported along a conveyer line and the contaminant ingredients are identified and ejected from the stream of preferred particles . more accurate sorting , and thus a higher quality sort may be performed where the contaminant materials and the preferred materials are identified by comparing ratios of levels of signals of energy transmitted through or reflected from the particles , the levels of signal being obtained by filtering the energy from the particles through bandpass filters , one filter of which is centered on the absorptive peak of a contaminant and another filter is centered on a frequency exhibiting the energy level of the preferred material equal to that occurring at the center of the filter for the contaminant absorptive peak . collateral method and apparatus include placing the fiber optic energy receivers of the transmitter and received information at a distance from the receiver a factor or five or more of the ratio of the field of view of a fiber at the particle stream to the maximum offset of the receiving fibers in the faceplate , as those opposite each other on a diameter of the faceplate .

a safety packaging for floral arrangement comprises a platform for engagement with a container , a support rod for embedding in a floral arrangement and extending above such arrangement , a plastic bag for receiving platform with arrangement , the bag being closed about the upper portion of the support rod to provide a carrying grip . the packaging facilitates carrying of floral arrangements where the support rod maintains the integrity of the bag . the platform may be generally broader than the expected breadth of the floral arrangement to provide protection during transport . the closure of the bag prevents air exchange and insulates the floral arrangement during colder periods . a transparent bag may be used to visually display the packaged arrangement for inspection before shipment and to solicit a pleasing response on delivery to customer .

a method and apparatus are disclosed for sealing pallets of fresh product inside plastic bags and finishing the interiors of the sealed bags with a modified gaseous atmosphere . conventional pallets loaded with cooled fresh produce are moved by an input conveyor automatically one at a time to an in - line squeeze station . a plastic bag at a convenient height is initially draped over an arm radiating from a novel bagger frame . a plurality of such arms extend from a rotatable hub so that bags can be moved into position above successive loaded pallets as they are needed . this apparatus permits the bagging of nearly twice as many pallets in a given time period .

a clear , multilayer polymeric film that is desirable for thermoforming applications . the film in its various embodiments include two inner layers of nylon and / or a core layer of ethylene vinyl alcohol or ethylene vinyl alcohol copolymer sandwiched between the two inner nylon layers . the film also has an outer layer of a heat sealable polymer and may also have an outer layer of nylon . the film is coextruded , blown into a tubular shape , oriented , and cooled by the method of tubular water quenching . the film has various improved physical properties over the prior art , including properties of “ memory ”, clarity , gloss and low haze .

an instrument bezel for an automobile facilitates the addition of supplemental instruments to a vehicle while maintaining a clear and unobstructed view of the road for the driver without placing the supplemental instruments in a location that would make reading these instruments awkward and unsafe . the present instrument bezel is shaped to surround the dashboard of the automobile and replace an original instrument panel or dashboard bezel of the automobile . in one embodiment , the present instrument bezel assembly includes a bezel body and integral pods or mounts on the bottom corners , and supplemental instruments retained in the pods or mounts . the bezel body may be made of fiberglass , carbon fiber , plastic , metal , or the like .

an optical reagent format with a precise capillary channel is made by molding a format on a carrier of a precise predetermined thickness . the carrier includes an insert at least a portion of which is molded in the format . once the format is made , the insert is detached from the carrier and removed from the format leaving a precisely dimensioned capillary channel with an inlet and vent . a reagent may be applied in the capillary channel and the format used to measure the analyte in a fluid such as blood . an electrochemical sensor with a capillary channel is formed by placing a sacrificial insert and electrodes on a sensor base and applying plastic material . after the plastic material is cured , the sacrificial is removed leaving a capillary channel in the sensor . the inserts may be removed by a tool including a clamp for clamping and holding each insert stationary and a sliding block to which the sensor is secured .

a compounder feeder for mixing and then injecting materials such as polymers and glass fibers into a female die mold includes first and second parallel screws which have interengaging spur gears and external mixing discs , the mixing discs of one screw not engaging the mixing discs of the second screw , a drive motor for rotating the first screw and a drive cylinder for moving the second screw axially toward and away from the female die mold to inject mixed material directly therein .

thermal management techniques and methods for various types of structures that require a thermal property , such as thermal conductivity and / or flame retardance , and have a surface in proximity to a source of thermal energy . such a structure includes a substrate formed of a metallic material or a thermally conductive plastic material , and a white fluoropolymer layer directly on a surface of the substrate without a discrete adhesive layer therebetween . the white fluoropolymer layer defines an outermost surface of the structure , has a reflectivity of greater than 95 %, and has a thickness sufficient to inhibit degradation of the thermal property of the structure resulting from impingement of the surface by the thermal energy .

this drop tube loading arm assembly is adaptable for loading asphalt into tank trailers at marketing terminals . the telescoping drop tube employs guides made of steel rollers of polymers such as fluorocarbon polymers and aluminum . the guides are located in the annular space between the tubes in combination with increased radial clearance between the tubes or sleeves and in combination with protection for the overfill probe . with the addition of vapor control systems and overfill protection probes , the telescoping drop loading spouts are less susceptible to cold weather sticking problems .

the invention relates to a method of preparing a reaction mixture for polymerase chain reaction assay and a solution set for pcr . the method comprises providing a sample solution comprising a biological sample to be amplified in said pcr assay and first colorant providing the solution a first color , providing a reagent solution comprising at least one other substance required for performing said assay and second colorant providing the solution a second color different from the first color , and mixing the sample solution and the first reagent solution for providing a mixed solution to be subjected to the pcr process , the mixed solution having , due to said first and second colorants , a third color different from the first and second colors . the invention significantly aids in pipetting pcr assays .

a method for producing multiple devices for securing identification means to a mounting surface includes a mounting device having a upper surface of translucent plastic film having certain regions glued to a substrate of label stock beneath the film . a gap with opening between the label stock and the film forms a pocket into which an identification means may be inserted or removed . the label stock possesses a face having an adhesive coating which is exposed by a peel - away backing . an image area printed on the label stock prior to application of the plastic film overlay is visible through the pocket and up to the outer edges of each mounting device . the device is economically created in multiples using adhesive label stock in either roll or sheet form .

the invention relates to a composition of excipients and pharmaceutical forms of sustained release and increased drug bioavailability for poultry and pigs and to a method of producing the same , said composition comprises : pharmaceutically active agents , bioavailability promoting agents , polymers for prolonged release of the drug , colouring agents , and flavouring agents . the composition of excipients and pharmaceutical forms of the invention optimizes the dosing of the drug dosage and generates resistant strains of bacteria by optimizing the ratio between pharmacokinetics / pharmacodynamics of drugs . the composition has different forms and colours that allow the product to be identified and accepted more easily by the bird or pig .

a method is provided for carrying out depolymerization of a polymer containing electrophilic linkages in the presence of a catalyst and a nucleophilic reagent , wherein production of undesirable byproducts resulting from polymer degradation is minimized . the reaction can be carried out at a temperature of 80 ° c . or less , and generally involves the use of an organic , nonmetallic catalyst , thereby ensuring that the depolymerization product are substantially free of metal contaminants . in an exemplary depolymerization method , the catalyst is a carbene compound such as an n - heterocyclic carbene , or is a precursor to a carbene compound . the method provides an important alternative to current recycling techniques such as those used in the degradation of polyesters , polyamides , and the like .

a method for repairing defects and reconstructing urothelial structures in vivo has been developed using a fibrous , open synthetic , biodegradable polymeric matrix which is configured to provide the desired corrective structure . the matrix is shaped to correct the defect , then implanted surgically to form a scaffolding for the patient &# 39 ; s own cells to grow onto and into . the implantation of the matrix initiates an inflammatory reaction , resulting in urothelial cells , endothelial cells and mesenchymal cells , to migrate into the matrix . the polymer forming the matrix is selected to be biocompatible and degradable in a controlled manner over a period of one to six months , in the preferred embodiment . a preferred material is a poly in a fibrous form , such as a woven or non - woven mesh . examples demonstrate the repair of defects in bladder in rabbits .

a fibrous web useful for compression molding stiff , board - like structural substrates for panels is formed of a thoroughly intermixed blend of wood fibers and synthetic plastic fibers with a dry , powdery , resinous molding material uniformly disbursed throughout the blend . the mass of intermixed fibers and resinous molding material is covered with a thin , randomly oriented , fibrous scrim material and the fibers are locked to each other and to the scrim mechanically by means of needling them together . the web is formed by drying wood fibers , spreading them into a mat , covering the mat with the synthetic fibers and thereafter , dispersing the fibers through a dispersion chamber and re - collecting and re - spreading them into a web by means of a picker roller , gravity dropping a powdery resinous molding material upon the web , redistributing and intermixing the fibers and the molding material with a second picker roller , applying the scrim and needling the combined scrim and fiber web for mechanically interlocking them .

a method and composition of packaging an adhesive composition , especially a thermoplastic or thermosetting hot melt adhesive . the method comprises the steps of providing one substantially uniform separate portion of the adhesive composition ; sufficiently solidifying said portion for packaging ; and substantially completely surrounding said sufficiently solidified portion with a biodegradable polymeric packaging material . the packaging material being meltable together with the adhesive composition and blendable into said molten adhesive composition , the kind and amount of said biodegradable packaging material being chosen so as not to disadvantageously affect the properties of the adhesive composition when blended into the molten adhesive and applied to a substrate .

a mechanical apparatus and tool for clearing small areas of the plastic film insulation in flat flexible circuits and cables to permit making electrical connections to the metal foil conductors . an end - mill - like rotating cutter is fed into the laminated workpiece . novel cutter geometry provides differential requirements of feed force and torque , cutting two to three times more easily into plastic than into copper . means are provided to limit the feed force to prevent penetration into the copper foil . means responsive to torque may be employed to retract the cutting tool automatically . a novel spring - loaded telescoping chuck is applicable to limit the feed force in single - spindle or multiple - spindle machines . the sides of the tool are slightly hollow - ground to reduce the feed - force required . the lips may be ground slightly convex to compensate for the elastic indentation of the workpiece .

a time span ranging from the start of a plastic pellet weighing sub - cycle to the end of an injection sub - cycle is defined as one data cycle in preparation to present the molding data in an injection molding cycle on a display through the detection thereof . the whole molding data obtained via the detection during the one data cycle period are presented in a single cycle molding data indication frame on the monitor screen of the display , whereby the trouble on the part of a operator to misconceive the displayed molding data for those of another molded product may positively be prevented , and troubleshooting the causes of giving forth a defectively molded product may be done accurately and quickly .

a masking member consisting of a vessel form inserting part made up of a bottom and a truncated conical wall portion , said wall portion extending upwardly from the perimeter of said bottom , and an outwardly extending flange formed around the wall portion of said inserting part , said masking member be made of a thermoplastic foam is presented in this invention . when said masking member is used , said inserting part of said masking member is inserted into a hole of an article and said flange of said masking member covers the surroundings of said hole . thus the inside of said hole and said surroundings of said hole are protected from a surface treatment and the removing of said masking member after said surface treatment from said hole may be very smooth without obstruction of the film of said surface treatment .

new anti - reflective or fill compositions having improved flow properties are provided . the compositions comprise a dendritic polymer dispersed or dissolved in a solvent system , and preferably a light attenuating compound , a crosslinking agent , and a catalyst . the inventive compositions can be used to protect contact or via holes from degradation during subsequent etching in the dual damascene process . the inventive compositions can also be applied to substrates to form anti - reflective coating layers having high etch rates which minimize or prevent reflection during subsequent photoresist exposure and developing .

metal amide species have been found to catalyze the ring opening polymerization of cyclic amides . the reactions do not require high vacuum or a highly reactive activating species and can be carried out at high temperatures .

a method for forming sheet metal articles , such as automotive body panels , having complex curvatures . opposing , complementary , pre - form and finish - form tools are used in a single press . a sheet of hot blow - formable sheet metal alloy , heated to a forming temperature , is placed between the tools . the pre - forming tool is lowered to a first stage closed position thereby trapping edges of the sheet between binder surfaces of the tools . the sheet is first stretched against the pre - form tool using pressurized gas to form a pre - form that undergoes most of the metal stretching required for the final part shape . then the finish - form tool is pivotably advanced into a second stage closed position . the pre - form is displaced away from the pre - form tool and hot plastically formed against the opposing finish - form tool with pressurized gas to obtain the final sheet metal part shape . the finish - form tool is then pivotably retracted so as to avoid die lock or part interference conditions .

the process for molding a thermoset sheet - molding composition or bulk - molding composition is provided that includes the exposure of a mold surface to a silsesquioxane monomer or pre - polymer material under conditions to induce polymerization of said material or said monomer to form a mold release coating on the surface . the thermoset sheet - molding composition or bulk - molding composition is then injected into the mold and into contact with said coating under conditions to cure the composition to form an article .

an apparatus for conducting electrophoresis is fabricated by use of an electrophoresis sheet composed of two sheet members consisting of a non - conductive organic polymer film and disposed to stand facing each other , spacers having predetermined thicknesses disposed between the two sheet members at right and left edge portions , and an electrophoresis gel membrane of a uniform thickness grasped between the two sheet members . the apparatus is provided with a pair of flat plate - like supporting members for supporting the electrophoresis sheet by sandwiching it therebetween , and a spacer disposed between the electrophoresis sheet and at least one of the flat plate - like supporting members , and contacting edge portions of the electrophoresis sheet .

carbon fiber - filled pc - abs resin compositions which have improved electrical properties at a given level of carbon fibers , and which do not suffer from as significant a decrease in impact strength as would result from the introduction of generic carbon fibers are achieved using carbon fibers treated with a polyamide terpolymer binder . the bundles are dispersed within the pc - abs blend . the compositions can be used for injection molding of articles for use as components in applications requiring static dissipation and / or emi shielding . such articles include , but are not limited to electronic devices , dust handling equipment and notebook computer enclosures .

a method for manufacturing reclosable plastic bags or packages includes the step of presoftening the complete length of the zipper before it is introduced into the space between two plies of plastic sheet material , which form the sides of the plastic bag or package . the presoftening enables the zipper , which may comprise interlocked male and female profiles , to be fused together and completely flattened when a seal bar clamps thereacross to form a side seal area transverse to the zipper .

to provide a metallic decoration sheet that has better metallic gloss than the conventional one , good metallic appearance enough to equal gloss plating product even in an acute shape such as deep curving or edge , high productivity , and low production cost , and poses no drawback of interlayer exfoliation even under high temperature condition . a method for making metallic decoration sheet , including the successive steps of : a base sheet attaching step of attaching a thermoplastic resin sheet via a first adhesive layer to a metal layer side face of a transfer film having the metal layer disposed on a smooth mold release face of a mold release substrate ; a mold release substrate removing step of removing the mold release substrate to obtain an intermediate laminate sheet ; and a surface film attaching step of attaching acrylic resin film via a second adhesive layer to a metal layer side face of the intermediate laminate sheet .

provided is a process for manufacturing a polyamide yarn exhibiting good dyeability , while utilizing polyamide waste . the recycled polyamide yarn with a high waste polymer content is used for making quality articles by a low cost method , which is further friendly to the preservation of the environment .

a screw for use in an plasticating injection apparatus includes a plurality of interrupted primary flights . an outer surface of a primary valley is formed by the primary flights and features a plurality of plateaus . the plateaus span adjacent sections of the primary flights and define shallow levels between deeper levels of the primary valleys . this depth differential contributes to a turbulent mixing action which , along with the primary and secondary valleys , contributes to improve mixing action within a metering section of the screw . the primary flights are interrupted by secondary valleys which are of opposite hand to the primary valleys .

a pallet having a unique runner system where each runner opens into the upper deck of the pallet or opens away from the upper deck , and each runner is formed of a construction of z girts back to back resulting in a flattened “ v ” or “ u ”. each runner may optionally include an elongated notch on its bottom surface or an opening to allow forklift tines to slide into for easy transport of the pallet . the pallet may also include cross runners of similar construction for additional strength . the pallet &# 39 ; s construction allows the pallet to be made of plastic material , perhaps molded , providing lighter weight and longer durability than its wooden cousins .

disclosed is a mold - closing device for an injection molding machine used for processing plastic materials , in which the mold supports accommodating an injection mold therebetween and a support element for a mold - closing mechanism are mounted on the machine base . in order to be able to precisely align the mold supports , the first mold support is also mounted on the machine base so as to be movable in the closing direction , the support element is mounted on the machine base or a part thereof via a stationary bearing , and a positioning mechanism is provided for adjusting the angle between the support element and the machine base .

this invention provides methods for the preparation of a tissue sealant - treated biomaterial , wherein the tissue sealant used in the method comprises at least one composition which is selected from one or more antibodies , analgesics , anticoagulants , anti - inflammatory compounds , antimicrobial compositions , antiproliferatives , cytokines , cytotoxins , drugs , growth factors , interferons , hormones , lipids , demineralized bone or bone morphogenetic proteins , cartilage inducing factors , oligonucleotides polymers , polysaccharides , polypeptides , protease inhibitors , vasoconstrictors or vasodilators , vitamins , minerals , stabilizers and the like . further provided are the biomaterial prepared therefrom , including vascular grafts .

a method for cleaning glass from a molded item includes applying hydrofluoric acid to the molded item . the molded item can be an injection molded item made from a glass filled polymer material . for example , hydrofluoric acid can be applied by immersion , spraying , exposure to vapors , or brushing . the molded item can be friction cleaned , e . g ., scrubbed , and / or cleaned via oxygen plasma prior to the application of hydrofluoric acid .

the present invention relates to polymeric compositions useful in the manufacture of biocompatible medical devices . more particularly , the present invention relates to certain hydrophilic monomers capable of polymerization to form polymeric compositions having desirable physical characteristics useful in the manufacture of ophthalmic devices . the polymeric compositions comprise polymerizable hydrophilic siloxanyl monomers .

a protective clothing fabric is described which combines hard polymers with flexible polymers . the scales or miniplate components are hard and provide protection from both bullets and knives . the polymer matrix is pliable and gives the composite material sufficient flexibility so that the material is suitable for clothing . with additional design layouts , the composite substances can be formed into gloves , goggles , boots and other accessories and with still additional layouts results in lightweight but protective headgear . with still additional design layouts , the composite substances can be formed into linings for gloves , boots and other accessories or injection molded for goggles and helmets .

the invention relates to a method of closing an access side of a flexible packaging using a planar closure made of plastic , the closure comprising a slot delimited by limb parts and extending between the circumference of the closure and an opening , said method comprising the step of introducing the access side of the flexible packaging into the opening of the closure and the method comprising a subsequent step in which the slot is at least partially sealed by means of a seal , which connects the limb parts to one another , without substantially deforming the closure .

a method and apparatus are disclosed for removing paint overspray suspended in air exhausted from a paint spray booth , in which the exhausted air is drawn through a conveyor - carried bed of small diameter beads or granules of plastic or other material allowing only a mild adherence of the paint to their surfaces upon drying . the paint overspray is removed from the air by being deposited on the surfaces of the beads as the air passes through the beads and paint is subsequently rapidly dried on the bead surfaces in a drying chamber . the paint carrying beads are then mechanically agitated to dislodge the dried paint to clean the beads for reuse , and the dislodged paint particles are separated from the cleaned beads for collection and disposal .

apparatus for welding items which are each made from a plurality of substantially plastic components operate to maintain the components in fixed positions relative to each other while moving them along a feed path , including welding and cooling stages .

a liquid - soluble sealed pouch is disclosed having a pre - measured volume of crystalline form super absorbent polymer solidifying agent therein which allows a known volume of liquid waste material to be solidified by the inclusion of a known number of such pouches into the waste material without the user having to directly place the bulk absorbent / solidifying agent therein .

a process for inhibiting the adhesion of bacterial cells to solid surfaces in aqueous systems and thus controlling biological fouling comprising adding a water - soluble ionene polymer to the aqueous systems in an amount ranging from about 0 . 5 ppm to about 50 ppm based on the weight of aqueous liquid in the system .

the invention relates to an enteric - coated capsule containing cationic nanoparticles for oral insulin delivery , in particular to a type of cationic nanoparticle including a polycationic and mucoadhesive polymer and a biodegradable polymer , wherein each of the nanoparticles has positive surface charge and enhanced permeability for paracellular insulin delivery ; the enteric - coated capsule further includes a ph - sensitive polymer as the coating . the enteric - coated capsule containing cationic nanoparticles , when being orally administered to a subject , are configured to prevent the acidic degradation of the active substance such as insulin before being released from said cationic nanoparticles to a specific absorption site along the gastrointestinal tract .

a stud for a tire to improve traction on a roadway which includes a hardened steel pin mounted in a plastic body and extending therefrom to engage the roadway , wherein the stud is sized for insertion into openings in a tire tread . the plastic body includes a portion that is collapsible so that the stud can self - adjust its position relative to the tread surface as it wears , whereby the steel pin is maintained in close relation to the tread surface throughout the life of the tire to provide the maximum road - engaging condition .

a fixative for biological tissue made up of polymerized carbon nanotubes encapsulating osmium nanoparticles and its method of synthesis are disclosed . carbon nanotubes are first oxidized . next , the oxidized carbon nanotubes and monohydrated citric acid are mixed to synthesize carbon nanotubes grafted with poly . the carbon nanotubes grafted with poly are then mixed with an osmium source to synthesize carbon nanotubes grafted with poly encapsulating osmium nanoparticles . the nano - fixative of this application has been shown to improve fixation of biological tissue relative to well - known fixatives .

apparatus for embossing web material such as a heated thermoplastic web material comprises first and second embossing members each having a resilient embossing surface , and means mounting the embossing members for relative movement to define a roll nip between them . the resilient surface of the first embossing member has a primary embossing pattern thereon and is of harder durometer than the resilient surface of the second embossing member . both resilient surfaces are soft enough to be temporarily deformed in the roll nip to press the web material between them into surface conforming contact with the primary embossing pattern . the temporary deformation also helps to expel air from between the web material and the primary embossing pattern to insure surface conforming contact of the web to the embossing pattern . a secondary embossing pattern is provided on the resilient surface of the second embossing member and is of lesser depth than the primary embossing pattern . the temporary deformation assists in providing full contact with both patterns . a method of embossing the material includes heating the thermoplastic web material to a temperature within its softening range , introducing the heated material to a nip formed between the first and second embossing members , and allowing the embossed material to cool to set the pattern before removing it from the first embossing member .

two identical handles are configured for insertion into the core of a stretch - wrap roll . a substantially rigid hand grip is forward on each handle so that the hand grips can be grasped in the two hands for position guidance of the stretch - wrap roll . the handle grips can be carried in the gloved hand and can be run free or squeezed for braking control during stretch - wrap film winding . each handle is molded of synthetic polymer composition material to be sufficiently rigid to provide the necessary support , but the plug inserted into the core is configured and sized to be somewhat resilient to facilitate insertion into and removal from the core .

a method and apparatus for forming large fiber - reinforced foamed plastic panels is disclosed . the panels are produced by a process comprising filling a flat mold with freshly mixed foam plastic precursors , including fibrous material for reinforcement of the panels , closing the mold until the plastic precursors have foamed and set , then opening the mold and removing the finished panel . the apparatus comprises a platen mounted for traversing under the dispensing outlet of a mixing device , whereby the platen is filled with foamed plastic precursors , and a press into which the platen travels before the mixture has begun to mold . the press is provided with a novel mechanism for closing the mold by placing a cover on top of the platen before the plastic begins to foam . the same mechanism is adapted to open the mold by lifting the platen cover . thereafter , the platen is moved in a reverse of its entry movement , returning to its starting position for removal of the finished panel . the mechanism for opening and closing the mold is operated by hydraulic operators under the supervision of a sequencing controller which provides a tilting movement during operation , providing for expelling of air during closing of the mold and breaking the surface tension between the platen cover and the finished panel by first raising or peeling one corner of the platen so as not to lift the panel out of the mold .

a method of repairing asphalt or concrete surfaces such as roads and parking lots which have developed pot holes therein . the hole is cleaned of loose debris , lined with a water barrier sheet , provided with a reinforcing mesh , and filled with hot asphalt mix . the asphalt mix is compacted by a roller which has been chilled by exposure to a cryogenic substance , such as liquid nitrogen . alternatively , the cryogenic substance directly contacts the asphalt mix . preferably , the reinforcing mesh is further reinforced by flattened rods woven through the mesh or alternatively , laid thereon , with the rods oriented at angles of approximately forty - five degrees to linear structural members of the mesh . the water barrier , reinforcing mesh , and reinforcing rods are preferably formed from recycled plastic materials .