Datasets:

cwinkler

/

patents_green_plastics

like 1

a substantially rigid , segmented , flat sheet blank parallelogram , which , may be shaped and folded into a reversible three dimensional rectangular parallelepiped . the sheet includes six foldably connected side wall panels , each in the form of a parallelogram , preferably a square or rectangle . the sheet also includes additional material such as support panels , and / or border material which defines , with the six side wall panels , the sheet blank in the shape of a parallelogram of the present invention . in preferred embodiments the flat sheet blank parallelogram is rectangular in shape . in some embodiments there is no excess border material , while in still other preferred embodiments there are no support panels . in some embodiments the first display surfaces of the six side wall panels and the second display surfaces of the six side wall panels both carry indicia , preferably the six side wall panel first display surfaces each carry one of six consecutive calendar months and the six wall panel second display surfaces each carry one of the remaining six consecutive calendar months of a calendar year on its respective second display surface . the unfolded sheet may be sized to be mailable without an envelope . the sheet may be made of paper , poster sheet material , fiber sheet , card sheet , cardboard , and foldable plastic .

spaced seams in a disposable garment web containing a plastic component and moving rapidly along a direction of manufacture is formed by bringing an ultrasonic welder into pressurized contact with the machine web for a predetermined period of time , heating the web along the seam for a first segment of the predetermined period of time and then maintaining pressurization with the ultrasonic welder during a second segment of the predetermined time period without heat sufficient to permit the plastic material to resolidify .

method for producing an elongated sintered article , characterized by the steps including filling powder material in a pipe , carrying out plastic deformation of the pipe filled with the powder material , and heating the pipe filled with the powder material to burn and / or sinter the powder material . the method of the present invention is advantageously applicable to production of wire or rod of ceramics , particularly so called new ceramics or fine ceramics , sintered alloys or their combination , which are difficult of shaping or moulding by conventional process such as wire - drawing , rolling or extrusion of powder material and are difficult of machining or processing after the powder material is sintered .

geostabilzing constructs made from synthetic materials such as recycled tires and plastic polymers are provided in forms engineered to stabilize large structures such as buildings , roadways , runways , parking lots , dams , levees and waste containment facilities . methods and geostabilizers of the invention provide alternatives or complements to conventional uniform and non - uniform gradations of earthen materials thereby decreasing the amount of conventional materials needed to stabilize a large structure . stabilizers of the invention impart superior resistance to compressive forces and can be designed and manufactured with to possess defined properties such as permeability to the flow of gases or liquids , compressibility , shear strength , rigidity , frictional coefficients , compactability , density , and resistance to movement . embodiments of the present invention can be used in conjunction with various construction materials like pipe and culverts .

a container for consumables such as cosmetics , hair and skin care products , foods , small appliances , optical disks and other consumables may be made of a biodegradable material having incorporated therein seeds of plants suitable for germination . the seeds may be selected for hardiness , attractiveness of the seed , plant or name , climate , likelihood of germination and other attributes . the seeds may be incorporated in a secondary space in the container , or embedded in the material of the container either wholly or partially , or in one or more layers of a multi - layer container . the container material may be natural or artificial plastic , cardboard , paper , fabric , or any other biodegradable material . the container may incorporate fertilizer , germination agents , agents to speed breakdown of the container . different varieties of seeds may be used in the container , and for pleasing aesthetic effect , the seeds may be visible thru partially or wholly transparent material .

a thermal dye transfer assemblage comprising : a dye - donor element comprising a support having thereon sequentially repeating dye layer patches of a dye dispersed in a polymeric binder , at least one of the dye patches containing a pendant basic - substituted dye having the formula : a -. sub . m wherein : a represents a thermally transferable dye residue , l represents a divalent linking group , b represents a basic substituent , and m represents an integer of from 1 to 3 ; and a dye - receiving element comprising a support having thereon a polymeric dye image - receiving layer , the dye - receiving element being in a superposed relationship with the dye - donor element so that the dye layer is in contact with the polymeric dye image - receiving layer , the polymeric dye image - receiving layer containing a hydrated transition metal or metalloid salt of a strong acid .

this invention is the design and synthesis of a caprolactone monomer which bears a pendant protected carboxyl group . this monomer has been copolymerized with caprolactone in varying ratios . after polymerization , the protecting group can be removed and an antibiotic can be attached as a new pendant group . the bioactivity of the antibiotic - bound poly polymer is described .

an injection molding machine and method of operation having a plurality of accessory arrangements for molding a plurality of piece parts in efficient overlapping time cycle using primary and secondary molten plastic injection units , primary and secondary clamping units , a plurality of injection units in various arrays including molding piece parts in reverse or uniform orientation .

a device and method are provided combining the thermal and mechanical attributes of two distinct materials : shape memory materials and super - cooled liquids . in one example of the invention , the super - cooled liquid is contained within a shape memory polymer , so that the heat released by the scl when it is mechanically triggered to crystallize itself triggers the shape change of the shape memory polymer . the device is suitable as a reusable warmer , as a dental mold material , in medical applications where reusable heat packs are indicated , particularly for application to difficult contours , and for large deployable structures such as satellite antennae and temporary shelters .

a process for anti - microbal textile treatment which provides durable and anti - microbial textiles and methods for preparing same . such textiles can be readily prepared using a wet curing process to covalently attach a complex formula compounds to a cellulose based material or other polymeric material . once prepared , the textiles of the present invention have a broad spectrum of biocide activity against pathogenic microorganisms , and durability and efficacy of the antimicrobial properties .

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 .

the present invention relates to a method for the stereospecific chemical recycling of a mixture of polymers based on polylactic acid pla , in order to reform the monomer thereof or one of the derivatives thereof . the latter may enter the traditional lactate market or once again serve as a raw material for synthesising pla .

a pontoon system comprising a series of hollow plastic modular units held together in a string under a watercraft is disclosed . the string may be compressed so as to form a unitary pontoon . if the compression force holding the individual pontoon member is released , any individual pontoon member which has been damaged may be removed and replaced without having to remove the watercraft from the water .

the invention relates to a rotary cutter for the pelletization of plastic extrudates , said rotary cutter being provided with knives projecting axially away from its end surface , said knives being individually affixed to supporting surfaces of the rotary cutter by means of fastening elements . the supporting surfaces are formed by the side walls of radial grooves in the peripheral surface of the rotary cutter and by radial transverse walls in the radial grooves , said radial grooves being limited by the radial transverse walls , the knives each being inserted in hook - like manner with a projecting portion into said radial transverse walls , wherein one side of the projecting portion forms an abutment for the fastening element , said fastening element penetrating a radial transverse wall and pressing on the abutment .

a method of shaping plastics material pre - forms into plastics material containers with the steps : introducing a plastics material pre - form into a blow mold ; conveying the blow mold with the plastics material pre - form along a pre - set conveying path ; acting upon the plastics material pre - form with a gaseous medium during a pre - set period of time for the expansion thereof , wherein the supply of the gaseous medium is carried out in a controlled manner ; and releasing the container from pressure at a pre - set point in time . according to the invention the pre - set point in time is variable .

an apparatus and method for disassembling a container having sections joined at sealed thermoplastic joining surfaces , such as toner cartridges , by cutting between the joined sections with a computer controlled laser beam , and the disassembled product of the method and apparatus that is suitable to be remanufactured and reassembled . the technique may be applied to other articles besides toner cartridges , such as inkjet cartridges , any container that must be opened with precision to preserve the container for reuse or to avoid damage of internal components . it is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure . it is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims .

a thread spool holding device has a plastic base plate that holds a series of preferably soft plastic spindles that can be introduced or removed from the base and can be arranged as needed by sliding along a slotted track of the base . each spindle can hold a threaded spool and has a cross sectional configuration for gripping the center hole of the spool . the spindle ends can also hold a bobbin in tandem with a thread spool .

a process for the continuous recovery of caprolactam from either solid polycaprolactam waste by depolymerization or from liquid polycaprolactam extraction water from an extraction zone where , in either instance , a caprolactam water vapor mixture is produced and subsequently upgraded in a distillation zone to provide a dilute mixture of caprolactam and water vapor . a minor portion of this dilute caprolactam water vapor is condensed and recycled to the distillation zone . the remaining , major portion of this mixture is compressed and admixed with fresh steam , superheated and passed to either the extraction zone or depolymerization reaction .

biodegradable anionic polymers are disclosed which include recurring polymeric subunits preferably made up of dicarboxylic monomers such as maleic anhydride , itaconic anhydride or citraconic anhydride . free radical polymerization is used in the synthesis of the polymers . the polymers may be complexed with ions and / or mixed with fertilizers or seeds to yield agriculturally useful compositions . the preferred products of the invention may be applied foliarly or to the earth adjacent growing plants in order to enhance nutrient uptake by the plants .

a portable typewriter particularly adapted for juvenile use comprises a plurality of types , a plurality of key levers each of which has a key and arm , an universal plate actuated by any one of the poeration key levers , a carriage in which a platen is provided for supporting paper , a ribbon cartridge in which a typewriter ribbon is loaded , and ribbon cartridge actuating means connected to the universal plate and adapted to shift the typewriter ribbon cartridge in a direction parallel to the axis of the platen to a typing position and , at the same time , to advance the typewriter ribbon when one of the keys is operated . the cartridge actuating mechanism is arranged to be shiftable vertically independently of its movement parallel to the axis of the platen . the typewriter ribbon cartridge and the actuating means are adapted to easy manufacture , and to allow the extensive use of plastics in the construction .

devices and techniques are disclosed for sequencing , fingerprinting , or mapping bio - polymer molecules in micro - array format by tagging molecules with radiation absorbing particles and exposing tagged molecules to electromagnetic radiation such as microwave radiation . the use of radiation absorbing material for tagging enhances detection sensitivity by dissipating energy of the radiation in spots on surface where tagged molecules are located . proposed system can be particularly beneficial when used as a reader system for dna and protein microarrays in genomic and proteomic applications , for reading affinity assays , and for detection of a trace amount of chemical or biological species of interest on a surface .

the housing of a rotary ball type industrial vibrator is injection molded from a reinforced plastic material , and an annular metal raceway structure is molded integrally with the housing and forms a contact surface for a metal ball disposed within the interior of the housing . in response to a flow of pressurized air through the housing , the ball is rapidly rotated around the metal raceway to impart oscillating vibrational forces which are transmitted through the housing to a bulk material handling structure to which it is rigidly secured . the light weight plastic housing facilitates a highly efficient vibrational force transfer to the material handling structure , and the integrally molded metal raceway structure isolates the rotating ball from the interior plastic housing surface to prevent internal housing abrasion , and significantly reduces operational noise generation .

this invention relates to the field of sound control equipment , and particularly to an acoustical panel for absorbing sound generated by equipment in a sterile environment such as a clean room , kitchen , food processing plant or drug manufacturing facility . the acoustical panel is comprised of an inner core made of loosely woven fibrous material , at least one middle layer on at least one side of the inner core which enhances durability without significantly reducing the sound absorption characteristics of the inner core ; edge support means ; and an outer layer fabricated of a durable plastic material capable of being heat shrunk .

a flexible film laminate especially adapted for use in the manufacture of a retortable pouch for the packaging of food is disclosed which comprises : a first layer of heat - sealable polyolefin ; a second layer of previously metallized thermoplastic polymer bonded to said first layer ; and , an adhesive bonding the first layer to the metallized surface of the second layer , said adhesive being a maleic acid anhydride adduct of ethylene - propylene copolymer .

a unitary plastic open head drum includes a first cylindrical sidewall closed at a bottom end with a bottom wall and open at an upper end . a second generally cylindrical sidewall is concentric to and extending at least partially the length of the first sidewall , providing sufficient stiffness to resist “ elephant footing ” of a bottom drum in a stack of drums .

this invention relates to method and apparatus for producing a composite container having a neck label or tubular sleeve mounted temporarily thereon adapted to be shrunken into final surface covering position . the tubular sleeve is preformed of relatively - stiff material and flat - folded until ready for use when it is partially opened and conveyed into axial registry with a container therebeneath . the sleeve preform of heat - shrinkable plastic material is telescopically assembled onto the container while the latter is firmly retained at an upper region . the retention device for the container serves to both fully open the sleeve preform and align the preform and container into axial arrangement . a reciprocatable head contacts the preform while so retained and telescopes the preform at least partially over the container . after the retention device releases the container , a second reciprocatable head contacts the preform to more fully telescope the preform over the container to a finally - aligned position where it is then adapted to subsequent heat - shrinking in place in permanent conforming arrangement .

a system for sketching , illustrating , drawing or painting a likeness composition such as a canvas oil painting from a source image is described , and includes a set of graduated reusable overlayable source image grids with subdivision indicators affixed to clear plastic sheets to be used with a corresponding destination canvas grid pattern , thereby allowing a consistent grid pattern for all canvas sizes . such a system greatly simplifies the use of grids in producing artwork and provides a low cost timesaving method to draw accurate shapes . the system includes a unique pre - gridded canvas with a water soluble grid pattern that includes the image grid pattern , thereby facilitating the drawing of the source image onto the canvas and simplifying the removal of the grid pattern after the drawing is completed and prior to painting . a method for imprinting the grid pattern onto the canvas , and a method for using the system of the present invention , are also disclosed .

a machine for chopping polymers , and in particularly elastomeric materials such as tires , into uniform small size particles through the use of a rotating cutting head having teeth that have side cutting edges generally perpendicular to their outer end edges , which are parallel to the axis of rotation , and interfit with stationary teeth formed in complimentary shape . the cutting head is used in combination with a material infeed mechanism that maintains a steady , positive feed of material to reduce the elastomeric material into uniform small chunks that can be used for fuel , or otherwise more readily disposed than the present large size tires or similar articles .

a method to reduce cross link vapors trapped in hollow cross link polyethylene products produced by rotomolding is disclosed . ozone is introduced into the hollow product after the polymer has cross linked . compressed air is delivered with the ozone to circulate the ozone effectively . use of the ozone oxidizes the cross link vapors and permits reduction in stored inventory of units awaiting dissipation of the cross link polyethylene vapors . a system for batch treatment of the products is also disclosed .

method and apparatus for longitudinal orientation of thermoplastic film material comprises a width - reduction zone upstream of the longitudinal stretching zone , through which the width of the film is gradually reduced so as to allow longitudinal stretching without necking . the width - reduction zone comprises at least one , preferably several , pairs of pleating rollers comprising intermeshing grooves or discs for pleating the material , the length of said width reduction zone preferably being less than 3 times the original width of the film . the width - reducing zone has upstream and downstream rollers or roller assemblies , with curved axes and optionally also conveyor belts for providing smooth width reduction . longitudinal stretching is preferably between at least two , and preferably more than two , pairs of stretching rollers which are relatively close together . the pleats may be provided in several stages with increasing pleats per stage , while guiding means preferably lay all the pleats to one side . the method allows achievement of high tensile strength , yield point , resistance to tear propagation and puncture resistance , especially for polyethylene and polypropylene films .

the invention relates to melamine group containing compounds which have been found to be effective ultraviolet stabilizers . the invention also relates to ultraviolet degradable organic compositions containing an amount of a melamine group containing compounds to prevent such degradation . these stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including , for example , pigments , colorants , fillers , reinforcing agents and the like . these ultraviolet stabilizers may be incorporated into the organic compositions such as polymers by adding to the polymer melt or dissolved in the polymer dope , coated on the exterior of the shaped or molded article , film or extruded fiber .

a process for making a multilayered formable plastic composite laminate and a process for its manufacture which includes preparing an acrylic composition which includes the reaction product of a mixture of predominantly an acrylic monomer and a substantially lesser amount of a polymer thereof , at least one free radical reaction initiating reaction catalyst , and optionally , a chain length regulating agent or a cross - linking agent ; deaerating the acrylic composition ; casting the deaerated acrylic composition upon a sheet or laminate of a thermoplastic material ; and curing the cast acrylic composition in several successive stages so as to substantially polymerize the acrylic monomer and to permit penetration of the acrylic composition preferably to a depth of between about 0 . 001 - 0 . 1 inch into thermoplastic material to form a laminate having a uniform and gradual acrylic / thermoplastic interphase , rather than a sharp separation between the layers thereof , so as to prevent delamination during further processing operations . these laminates are then thermoformed into various shaped articles .

a method for preparing a composite multilayer porous hollow fiber membrane and the device and product thereof . the method comprises preparing uncured porous hollow fibers with larger pore diameters as the inner supporter of the membrane from thermoplastic macromolecule polymer resins by thermal induced phase separation method and then bonding a superthin coating layer with microfiltration or nanofiltration function and small pore diameter prepared on the outer surface of the hollow fibers from a solution of the thermoplastic macromolecule polymer resins by a coating process using non - solvent induced phase separation method . the composite multilayer porous hollow fiber membrane has such excellent mechanical strength and high water flux as the membranes prepared by thermal induced phase separation method , such high precision filter effect and high contamination resistance as the membranes prepared by non - solvent induced phase separation method , and high binding force of the membrane prepared by the above method .

the water purification cartridge treats water with a halogen liberated from halogenated hydantoinyl resins and polymers , resulting in the safe , complete , and economical purification of non - potable water at low flow rates typically found in gravity feed filtration systems and at water pressures of less than 1 psig . the cartridge of the invention purifies non - potable water of bacteria , viruses , and some protozons without the need for additional power sources or risk to the consumer for exposure to chemicals that have been identified to have harmful , long - term effects . the cartridge described herein enables a gravity fed water purification system by combining the cartridge with conventional filters , such as porous diatomaceous earthen ceramic water filters or activated carbon filters packed either with granular activated carbon or block .

a twist - on renewable filter comprising a one - piece hollow housing , made of polymeric material having a threaded adapter for attachment to a distribution head assembly . the filter housing is fabricated from components that are made of a polymeric material that are fused together to form the one - piece hollow housing . a filter media assembly is rigidly bonded at both ends within the housing . the renewable filter has an infinite life and can be removed and cleaned , for example , by reverse flushing the filter with a cleaning solution . a bypass valve 250 is provided within the filter that is designed to provide full closure for an infinite life . the bypass valve 250 is fully located within the one - piece hollow housing such that it cannot be disabled or tampered with . the bypass valve 250 functions to allow sufficient fluid to bypass the filter media when the filter media has become contaminated and will not permit the full volume of the normal oil stream to be filtered . the bypass valve 250 has the capacity to permit the full volume of the normal oil stream to bypass the filter media when necessary , for example , during a cold start .

a process and an apparatus for the production of labeled plastic bottles , to produce labeled bottles at a high output rate and with a reliable label hold wherein the bottles are labeled in a continuous flow directly after leaving the blowing machine . the bottles are still clean and dry , and allow for a reliable attachment of the labels at a high rate .

the invention relates to a ceramic biocomposite for bone regeneration , having a ph range of between 6 . 5 and 8 . 5 , with an initial plasticity that allows the biocomposite to be easily moulded in situ and to set after 7 minutes , meaning that it can remain at the indicated location during the healing process . in addition , the biocomposite has demonstrated an ability to stimulate bone formation in hard - to - heal wounds . the material can act alone or in combination with other types of bone graft such as autografts , homografts or xenografts which act as a vehicle , as a binding material for endosseous prostheses or as a covering for endosseous implants or prostheses .

processes for improving the in vivo function of factor viii by shielding exposed targets of the factor viii comprise a ) immobilizing the factor viii by interaction with a group - specific adsorbent carrying ligands manufactured by organic - chemical synthesis , for preventing polymer coupling to reactive amino acids of the immobilized factor viii , within or adjacent to interaction domains ; b ) activating a biocompatible polymer ; c ) conjugating the activated biocompatible polymer to external sites of the immobilized factor viii ; and thereafter d ) eluting the conjugate from the adsorbent . processes for administering factor viii comprise subcutaneously , intramuscularly , intradermally or intravenously administering a conjugate of factor viii and a biocompatible polymer , and methods for treatment of hemophilia a comprise subcutaneous , intramuscular , intradermal or intravenous administration of a conjugate of factor viii and a biocompatible polymer .

the present invention relates to a systematic process for the creation of functionally organized , spatially patterned assemblies polymer - microparticle composites including the ac electric field - mediated assembly of patterned , self supporting organic films and organic - polymer - microparticle composites of tailored composition and morphology . the present invention further relates to the incorporation of said assemblies into other structures . the present invention . also relates to the application of such functional assemblies in materials science and biology . additional areas of application include sensors , catalysts , membranes , and micro - reactors , and miniaturized format for generation of multifunctional thin films . this invention also provides simple methods and apparatus for synthesizing thin films of tailored composition and morphology :

the clamp includes a passage adjacent to a pivot connection and into which a corresponding pivot pin is at least partially displaced from its original position into a position in which the circumcision clamp becomes inoperative . in one embodiment , the passage is located at one end of the latching member having a notch that is adjacent to a spur so that , when the clamp is moved to a closed position , the spur slips into the notch . the spur and notch resist movement of the latching member thereby causing the pivot pin to be forcibly displaced from its original position into an inoperative position . select elements of the clamp may be formed of transparent plastic material for allowing a circumcision operator to monitor the glans penis therebeneath so that same is not damaged during a circumcision . alternately , the clamp may be formed of aluminum and stainless steel . in such an embodiment , the passage is located at one end of the handle . as the handle moves to an open position from a closed position , the corresponding pivot pin at the end of the handle is forcibly displaced at least partially into the passage and thereby rendering the clamp inoperative . such an embodiment of the clamp may be sent back to the manufacturer to be refurbished and resterilized for reuse .

a wastewater treatment apparatus having a fixed film media apparatus having insertable high surface area polymer cartridges providing growth surfaces for autotrophic or heterotrophic bacteria and a protective shielding surface which isolates the biofilm from turbulence within the wastewater treatment system . a method of placement of said media apparatus within the aeration and / or clarifier section of the wastewater treatment apparatus .

the instant invention provides a process for substantially reducing the polymer cement viscosity or reducing the molecular weight distribution of the a conjugated diene polymer synthesized by using a charge of catalytically effective amounts of a rare earth catalyst and an organo magnesium component by adding an organo zinc component to the charge in an amount and under conditions sufficient to reduce the polymer cement viscosity . the invention also contemplates a catalyst compostion for substantially reducing the polymer cement viscosity of a polymer product as well the resultant polymer product .

system and method for the achievement of the energetic and technological self - sufficiency of sea and inland ports with regard energy and water supply with the full and pollution free exploitation of the port &# 39 ; s internal resources . the system comprises of an innovative linking of existing technologies and of a method which allows sea and inland ports to be independent from external suppliers of electricity and water while at the same time it provides ports with an autonomous and pollution free system for disposing of generated wastes . this includes municipal solid and similar waste , technological waters , bilge waters ; and optionally msw generated by the local community . the system is formed by an energy distribution center and an optimal linkage of mass and energetic flows and known technologies comprising as a minimum a : 1 ) technology for substantial / energetic conversion of msw with a positive energetic balance ; technology for substantial / energetic conversion of bilge water and contaminated plastics to synthetic fuel or energy ; technology for treatment of municipal or industrial sewage and ; technology for conversion of sea and / or inland water to pot and industrial water . the system manages and distributes port &# 39 ; s internal resources in a synergistic way to achieve their optimal utilization and the “ zero waste - zero energy ” effect .

the invention relates to saucer - type handle components that pertain to a hollow handle and are produced in several steps . said handle is used for a toothbrush . said components are joined together and are inserted into an injection mould . a synthetic material , preferably a thermoplastic elastomer , is injection - moulded around the mould - parting line between the handle components in said injection mould . the connection seam thus produced holds the two handle components together in a nondetachable manner and seals the hollow space which is formed by the handle components .

joining together two materials by a mechanical interlock resulting from &# 34 ; chips &# 34 ; at their interface is disclosed . the chips , composed of one of the two materials to be joined or of a third material are partially embedded into the surface of the first material when that material is formed so as to form surfaces which &# 34 ; overhang &# 34 ; the first material . thereafter , the second material is formed against the overhanging surfaces of the chips to establish the mechanical interlock . this technique is particularly useful in anchoring a dissimilar material to a polymeric material having poor bondability and / or a high melt temperature , for example fluoropolymers , as illustrated by the forming of a liner for a pump casing , or the like , by rotational molding . in that illustration , small particles and chips are distributed uniformly over the surface of an enclosed mold heated to melt the particles and fuse the chips thereto , and cooled to form a layer with the chips projecting therefrom so as to provide an interlock when a casing is formed against the liner . other aspects of the present invention include the article of manufacture formed by the above method .

writing instrument sheaths and methods of fabricating and using the writing instrument sheaths are disclosed . in an embodiment , a writing instrument sheath includes a contiguous wall and a polymer layer that provides a comfortable and controllable writing experience .

a machine for high rate production of molecularly oriented thermoplastic bottles is disclosed . the machine is of the reheat - and - blow type . a blow molding station simultaneously blow molds article preforms arranged in matrices by modular article carriers for conveying the preforms and articles through the machine . the carriers are designed to retain the preforms throughout all operations of the machine from a preform load station through a thermal conditioning section , a blow molding station , and to a bottle eject station , thereby eliminating the need for other preform transferring apparatus . the article carriers together with the associated conveying apparatus comprise a sufficiently flexible structure that minor misalignments of the carriers with the blow molding mechanism do not adversely affect bottle production . both loading of preforms and ejection of finished bottles are accomplished by operation upon matrices of preforms and bottles as defined by the carriers and conveyor lanes .

a multiple serving container shaped to incorporate an opening dimensionally sized to fit within the opening of the typical plastic liquid containers used for bottling water , fruit juice and soda . the serving container fitting inside an opening into the liquid container allows transfer of contents without spillage .

a shrink tunnel assembly for wrapping an article with polymeric shrink film includes a shrink tunnel having a heating zone , and conveyor means for carrying an article to the heating zone and away from it . while in the heating zone , polymeric shrink film covering an article avoids contacting any solid surface , thereby protecting the article from marring and destruction .

a storage device for kitchen utensils , tools , artist supplies , etc . providing annular tiers of storage pockets surrounding a central hollow cylinder whose top is apertured to support bladed utensils ; preferably , the main body of the storage device is a unitary molded plastic structure having spaced double walls between the storage pockets so as to provide additional storage for bladed utensils between the double walls and the entire device is supported for rotation about the central axis of the cylinder .

this invention is related to the use of polyurethane - based polymer as a drug delivery device to deliver biologically active compounds at a constant rate for an extended period of time and methods of manufactures thereof . the device is very biocompatible and biostable , and is useful as an implant in patients for the delivery of appropriate bioactive substances to tissues or organs .

the invention relates to a device for vacuum - pressing of disk - shaped substrates , in particular dvd substrates into a finished dvd , wherein the device has a vacuum chamber with two substrate holders and an intermediate element that can be displaced inside the vacuum chamber ; and wherein the intermediate element divides the vacuum chamber into a first low - pressure chamber and a second chamber that can be alternatingly connected to vacuum or to an overpressure , which makes the device particularly suited for use with a hot - melt thermoplastic adhesive .

the present invention is directed to a method for making a graphically - printed component for an absorbent disposable article . the method comprises providing a molten polymer by feeding polymer chips into an extruder and melting the polymer chips . the molten polymer is extruded in the form of a thermoplastic polymer film onto a provided nonwoven fabric in an in - line process , in which the film has a basis weight of about 10 gsm , to provide a backsheet comprising the film and the nonwoven fabric . the backsheet on the film is graphically printed with printing means to provide a graphically printed backsheet . the graphically printed back sheet is wound into a roll good , or an absorbent core is positioned between it and a liquid permeable topsheet to provide an absorbent disposable article .

an apparatus for the continuous modification of polymers in the flowable state by electron radiation , includes a device configured for converting polymers into the flowable state , a forming device and at least one irradiation device structured and arranged to provide electron radiation in a region of irradiation . additionally , the apparatus includes at least one cooling device , a radiation guard and supply and discharge lines inside the radiation guard . the supply and discharge lines realize a continuous transport of the polymers in the flowable state at least through the radiation guard into the region of irradiation . additionally , the supply and discharge lines realize a continuous transport of one of polymers remaining in the flowable state and modified at least inside the radiation guard and solid formed and modified polymers out of the region of the irradiation .

the present invention is directed to a storage system including a biodegradable plastic material that can be used in applications where biodegradability and biocompatibility are among primary desirable features , while having qualities which are desired for the various uses of the storage system . the present invention includes process to make the storage system and for transporting article wherein they can be stored at their destination .

a ceramic fiber band that can fulfill a plurality of functions in connection with the injection and / or extrusion process of an injection molding or extrusion apparatus , thereby reducing overall energy costs and creating a safer working environment . the ceramic band , being an insulator and having heating and / or cooling elements with a faster response contained therein , exert the desired heating / cooling effect upon the barrel portion of the injection / extrusion machine thereby raising , lowering , or maintaining the temperature of the fluid plastic compound passing through the barrel .

a plastic film is formed by passing a web of extruded thermoplastic material through a slit formed between a pair of smoothing rolls . one of the rolls is biased toward the other roll by a yieldable biasing mechanism to accommodate variations in thickness of the web .

the present invention relates to novel methods for the diagnosis of helicobacter pylori infection . specifically , the present invention relates to novel non - invasive methods for the detection of the presence or absence of a helicobacter pylori antigen or a metabolite produced by the bacterium in a biological sample with a biosensor - based measurement . the present invention also related to the use of a biosensor containing specific antibodies against h . pylori or antigen - binding fragments thereof immobilized thereto together with bio - molecule - repellent polymers preventing the non - specific binding . the invention also relates to test kits useful in the methods .

a multilayer thermoformable film comprises a top - layer thermoplastic film having an inner surface and an outer surface , where the top layer thermoplastic film has a softening temperature , at least one mask layer thermoplastic film , where the mask layer thermoplastic film has a softening temperature that is within about 30 degrees centigrade of the softening temperature of the top layer film , and at least one tielayer disposed between the inner surface of the top layer film and the mask layer .

biocatalysts such as microbial cells are immobilized by forming spherical gel beads containing the microbial cells from a hydrogel such as agar or carrageenan , incubating the beads for a time sufficient to permit the microbial cells to produce co 2 and thereby decrease resistance of the beads to diffusion , diffusing into the beads a monomer , cross - linking agent and accelerator and contacting the beads with a polyermization initiator to cause polymerization of the monomer . the polymerized monomer prevents breakup characteristic of hydrogels containing growing microbial cells . this method is particularly suitable for the immobilization of microbial cells for use in fermentation to produce ethanol .

the lens is made by injection molding in a mold through the injection of molten plastic material in at least three injection shots using a multistep process . it includes a first outer lens part , a second outer lens part and a lens core part forming an interior of the lens . the lens core part is embedded between the first and second outer lens parts . the lens core part is divided into at least two subparts separated at least partially by at least one elongated slot extending across the lens core part between the first and second surfaces of the lens core part . the slot or slots made through the lens core part are filled and fused with the plastic material of the first outer lens part .

an ionic metallocene catalyst for olefin polymerization which comprises : a cyclopentadienyl - type ligand , a group ivb transition metal , and alkyl , aryl , or hydride substituents , as a cation , and a weakly coordinating anion comprising boron substituted with halogenated , such as tetra fluoro , aryl substituents preferably containing silylalkyl substitution , such as para - silyl t - butyldimethyl .

a toothpick made of biodegradable material composed of a thermoplastic , water - soluble and foodstuff - grade base material . the base material substantially consists of starch , glucose , gelatine , cellulose , collagen or their derivatives . various active substances such as fragrances , dyes or pharmaceutical compositions may be added to the base material . the active substances may however also be added to the finished product , i . e . the toothpick , by coating the toothpick therewith .

the present invention relates to foam control compositions and methods for controlling foam in aqueous media by adding to the system an effective amount of the foam control agent of the present invention . the antifoam / defoam compositions of the present invention include a concentration of active ingredients such as a polyalkylene glycol , a fatty alcohol alkoxylate , and an ethylene oxide - propylene oxide block copolymer , the compositions carried in polybutene and surfactants selected from polyethylene glycol esters , sorbitan esters , polyoxyethylene / polyoxypropylene fatty acid esters , and dialkyl phthalate . these compositions have been found to be superior in controlling foam versus conventional defoamers . the benefits of the foaming control effect are more evident at moderate to high temperatures and high caustic aqueous media such as bayer process liquors .

the disclosure relates to a system for injecting a thermoplastic material in the fluid state , including : a dispenser adapted to be maintained at an injection temperature higher than the temperature limit at which the material is in a fluid state ; an injection nozzle defining at least one portion of a transition passage ; a stopper mounted inside the transition passage so as to slide between a blocking position and an opening position thereof ; and control means for alternately sliding the stopper , wherein the control means comprises a jack with a rod parallel to the sliding direction of the stopper , and which is secured in an offset manner on the dispenser via a flattened beam , and a lever arranged so as to tilt about an axis so as to transmit the movements of the jack rod to the stopper .

applicants have produced a chromophore and a polymer that are highly sensitive to the presence of various agents , including organophosphates , pesticides , neurotoxins , metal ions , some explosives , and biological toxins . the detection is accomplished by detecting a change in the fluorescence characteristics of the chromophore or polymer when in the presence of the agent to be detected . the chromophore and polymer may be incorporated into sensors of various types , and they are adaptable for potential field use in areas where detection of these types of agents is desired .

a composite endless belt for use in printers , imaging devices and the like comprises a nonwoven , porous , open pore thermoplastic substrate having one or more electrically conductive elastomeric coatings thereon . the substrate , which comprises a combination of short fibers and fibrids or a randomly laid continuous fiber , is formed into an endless loop and the overlapping ends thereof are welded together ultrasonically . the belt is very thin , the combined thickness of the substrate and coating or coatings being less than about 0 . 015 inches .

the invention relates to a pallet container with a thin - walled inner receptacle preferably made from thermoplastic material for the storage and transport of liquid or free - flowing goods , wherein the plastic container is closely surrounded by an outer cage jacket of crossed hollow bars which are configured with dimples by means of which bending points in the cage jacket are established so that when the pallet container is subjected to drops from certain heights , the cage jacket incurs a plastic deformation , thereby preventing fracturing or tearing of the hollow bars from the cage jacket .

there are disclosed ph - sensitive polymers containing sulfonamide groups , which can be changed in physical properties , such as swellability and solubility , depending on ph and which can be applied for a drug - delivery system , bio - material , sensor , etc , and a preparation method therefor . the ph - sensitive polymers are prepared by introduction of sulfonamide groups , various in pka , to hydrophilic groups of polymers either through coupling to the hydrophilic groups , such as acrylamide , n , n - dimethylacrylamide , acrylic acid , n - isopropylacrylamide , etc , of polymers or copolymerization with other polymerizable monomers . these ph - sensitive polymers may have a structure of linear polymer , grafted copolymer , hydrogel or interpenetrating network polymer .

in a process for manufacturing degradable cigarette filters wherein adhesive is applied to at least one longitudinal edge of the plug wrap paper , a bond is made while the adhesive is molten and the resultant bond is held in compression for sufficient time to prevent bond movement , the improvement which comprises , using as the adhesive , from about 20 to 60 % by weight of an intermediate or high ds starch ester having from about 2 to 18 carbon atoms in the ester component and a ds of from about 0 . 3 to 2 . 5 , 5 to 40 % by weight of a polar wax , 5 to 50 % by weight of a plasticizing diluent , 0 to 25 % by weight of a compatible tackifier and 0 to 3 % by weight of an antioxidant .

the present invention relates to a process for liquefaction and saccharification of polysaccharide containing biomasses , having a relatively high dry matter content . the present invention combines enzymatic hydrolysis with a type of mixing relying on the principle of gravity ensuring that the biomasses are subjected to mechanical forces , primarily shear and tear forces . furthermore , the present invention relates to the further utilisation of such processed biomasses , e . g . for subsequent fermentation into bio - ethanol , bio - gas , specialty carbohydrates for food and fees as well as carbon feedstock for processing into plastics and chemicals .

a method of fabricating a wind turbine blade tubular spar , wherein the tubular spar extends along a designated axis , is made of reinforced polymer material having fibers arranged in at least two directions , and a polymer matrix incorporating the fibers , and has two caps and two webs ; the method including the steps of : molding and cross - linking at least part of a cap or web in composite material ; molding and cross - linking an l - shaped structure , which has two opposite parallel flanges , and at least partly incorporates the previously molded , cross - linked cap or web of composite material ; repeating the above steps to mold and cross - link a further l - shaped structure ; and joining the two cross - linked , l - shaped structures , with the flanges positioned facing in pairs .

the present invention relates to transgenic plants which produce poly - beta - d - hydroxybutyric acid and related polyhydroxyalkanoates . the production of phb is accomplished by genetically transforming the plants with modified genes from microorganisms . the genes encode the enzymes required to synthesize phb from acetyl - coa or related metabolites . phb is a very useful polymer which is biodegradable .

the present invention provides for a novel heat stable class of polyamide - imide polymers having excellent flow properties and hydrolytic stability which are prepared by forming the polycondensation product of one or more aromatic or aliphatic diamines and a comonomer comprising a tri - or hexafluoro - substituted tricarboxylic acid anhydride having the structure : ## str1 ## wherein r is cf 3 or a phenyl radical . in addition to improved flow properties , the polyamide - imide polymers of this invention also exhibit improved solubility properties in most organic solvents , good resistance to attack by chlorinated solvents such as trichloroethylene as compared with polyimides , improved hydrophobic properties as well as good thermal properties , including resistance to thermooxidative degradation .

a deck plank is co - extruded from an extrusion die which receives molten plastics materials supplied from three separate plastic extruders to provide the plank with opposite sides having different colors . preferably , the base plank is extruded from a lower cost material such as reground scrap polyvinylchloride , and thin pvc cap layers are co - extruded on opposite sides of the base plank in different colors . opposite edges of each plank have longitudinally extending grooves for receiving hidden fasteners in the form of screws extending through short flat tie pieces or a continuous sealing tie strip projecting into the opposing grooves of adjacent planks .

a method of forming a thermoplastic article , comprises steps of : a ) positioning at least one preheated first component being hollow and having at least one open end in two co - operating first mold halves ; b ) extruding a blow - moldable thermoplastic material into the first component and closing the mold halves ; and c ) blowing the blow - moldable thermoplastic material inside the mold halves to form an article on which the first component is fixedly engaged . the method is simple in implementation , low in cost and easy in modification , and by which a thermoplastic article of varied colors , patterns , materials , and / or functional components being fixedly mounted on its outer surface could be realized .

the present invention relates to a hybrid process for producing molded plastic articles by reinforcing the walls thereof through the injection of a foamed thermoplastic material , thus increasing the thickness of the wall in previously determined zones in order to improve the mechanical characteristics thereof . according to the invention , said hybrid process comprises to strengthen previously defined zones of the plastic articles formed by any of the already known processes , such as : injection , extrusion , extrusion - blowing , injection - blowing , thermoforming , roto - molding , or any combination thereof ; and afterwards the injection of a foamable thermoplastic material to fill up said strengthening predesigned zones .

an apparatus is disclosed for the fabrication of a biaxially stretched flat film of thermoplastic material , particularly of polypropylene , with improved properties for a process in which the material is first partially pre - stretched in a longitudinal direction and , thereafter , simultaneously biaxially stretched , the apparatus comprising stretching rollers for effecting partial longitudinal stretching of the film , the rollers being arranged upstream of an assembly for effecting simultaneous biaxial stretching of the film . the speed of the stretching rollers is infinitely variable so as to influence the total degree of film - stretching only by changing the speed of the rollers . the rollers used for longitudinal pre - stretching are arranged at the inlet section of the biaxial stretching assembly . a system is provided to maintain the fiml exactly at the temperature required by the film characteristics for stretching , and biaxial stretching is done such tht any given point on the film in the region the film is being biaxially streched undergoes simultaneous biaxial stretching both in the longitudinal and transverse direction of the film .

a support composition based on triazine derivatives is prepared having high binding capacity . the support composition contains a polymer compound having no triazine groups , a polymer compound with 4 , 6 - dihalogen - 1 , 3 , 5 - triazine groups , a 2 , 4 , 6 - trihalogen - 1 , 3 , 5 - triazine filler component and an alkali metal halogenide filler component . the support is useful in molecular biology particularly for the fixing of biomacromolecules and for clinical and analytical detection of immunologically significant factors or organic or inorganic components of liquids .

an apparatus for determining the condition of engine lubricating oil includes a sensor having a plurality of spaced apart electrode pairs on a nonconductive polymer film . the sensor is operatively associated with an oil filter , which provides retro - fit capability and easy access for servicing and replacement . the multi - electrode pair design averages signal output to reduce operational electromagnetic interference noise . a forcing - function waveform reactive circuit is applied to the sensor input electrode as a common voltage potential . the output current from the sensor electrodes is then relayed to a current follower amplifier , which converts the output current into an equivalent voltage for comparison with predetermined values . based on the voltage values , the on - board sensing system will determine the oil &# 39 ; s condition , and will trigger a trouble code if the equivalent voltage falls within a predetermined range .

the present invention relates to a process for reactively separating hydrolyzable polymers , such as pet , in mixtures of the polymer and certain non - hydrolyzable polymers , specifically polyolefins by converting the hydrolyzable polymers to their corresponding water soluble components in the presence of liquid water at temperatures from about 200 ° c . up to the critical temperature of water and autogenous pressure . the process has utility in recycling and waste material separation processes .

the invention relates to a device for producing and withdrawing stacks of plastic bags , especially bags for automatic machines , in coordination with a gradually moving pin stack chain from which the bag packages are removed in a simplified and accelerated manner with the aid of a robot that has a multifunctional hand and automatically executes all essential manipulations and / or movements required for the formation and piling of the bag stacks and finally delivers them to an unloading station .

catgut suturing filament protected by a flexible polymer sheath that is slowly hydrolytically degradable and impervious to body fluid degratative enzymes . the sheath is prepared by coating the catgut filament with an isocyanate capped polyhydroxylated polyester followed by curing .

in an image card where an image is formed on a thin plate made of special synthetic paper or plastic by engraving by sweeping the plate with the engraving needle through relative movement of an engraving needle and a plate , it is impossible to form a hidden image which can be viewed when a viewpoint is changed or form an image formed by watermark engraving and the hidden image within the same plane . a hidden image is formed on an image card by engraving while angles of stripes of striped patterns are changed in response to shading of an image . further , an image engraving device is provided with a rotary driving unit , and engraving is performed in a state that an extending direction of striped grooves of the hidden image and a forming direction of the engraving are made equal , so that a wall face of a groove is always formed by the same side face of an engraving needle and undulation does not occur on the wall face of the groove . similarly , a shape of a bottom face of the groove is made even . as a result , precision of the hidden image is made high and an effect as the hidden image is further improved .

this invention relates to a pharmaceutical dosage form for the phase - controlled and chronotherapeutic delivery of at least one and , preferably , several pharmaceutically active ingredients . the dosage form has a carrier platform which ,— preferably , is a polymer having known biodegradable characteristics . the platform may include a pharmaceutically active ingredient &# 39 ; which is released over a predetermined period of time as the platform polymer degrades . at least one pharmaceutically active ingredient in the form of a disc is embedded in the platform and , once the polymer of the platform has degraded , the disc is released and releases its ingredient in the same location as that of the platform or it travels to another region of the body where it releases its ingredient .

the present invention is directed to a pulp useful for making lyocell fibers . the pulp has a degree of polymerization from about 300 to about 1000 ; an alpha cellulose content of less than about 90 % and in one instance can be made in a roll form . the degree of polymerization can be modified by acid hydrolysis , steam explosion ; or alkaline enzymate degradation .

the invention is drawn to novel macrolide compounds of formula i having antibiotic and antineoplastic activities , useful as medicaments and / or agrochemicals for microorganism infections , in particularly for infectious diseases involving drug - resistant staphylococcus , and for treatment of human and animal cancers .

spherically shaped polyvinyl alcohol polymer particles are prepared encapsulating a magnetic colloid that provides the particles with magnetic properties for use in binding biomolecules . the particles have a size of 1 - 10 μm that makes them particularly suitable for use in cell separation / sorting , cleaning biosubstances in suspension and diagnostic assays . the particles are prepared by dispersing a magnetic colloid containing a magnetic material such as a ferromagnetic or superparamagnetic substance in an aqueous solution of polyvinyl alcohol containing reactive hydroxyl groups , adding the resultant mixture to an organic phase containing a mixture of at least two emulsifiers , and adding a water - soluble cross - linking agent such as a dialdehyde that reacts with the hydroxyl groups of polyvinyl alcohol to form the polymer particles . the emulsifiers are miscible in the polyvinyl alcohol solution , and at least one emulsifier is semi - hydrophilic and at least one emulsifier is lipophilic . the cross - linking agent may be used in combination with a water - soluble diamine . the polymer particles contain reactive hydroxyl groups and can be provided with spacer molecules to which biomolecules such as antibodies , peptides , proteins , enzymes , streptavidin , avidin , oligonucleotides , oligosaccharides or dna can be coupled . vinyl monomers having one or more functional groups such as carboxyl , hydroxyl , amino , aldehyde or oxirane may be grafted to the polymer particles by radical polymerization under the catalytic effect of cerium .

a system for treating household municipal wastes , and recovering recyclable materials from the waste stream . the process includes feeding the substantially solid waste stream , comprising generally paper or pulp material , glass , metal , plastics , and other solid wastes , into a first vessel , containing heated water ; rotating the vessel to intermix the solid wastes with the water under a predetermined pressure ; subjecting the vessel containing the wetted materials to a vacuum so as to achieve a desired moisture content to the pulp materials preferably between 20 to 30 %; conveying the materials from the vessel to be separated into component parts ; providing a second treatment vessel for receiving the material in alternate use ; cycling the water from the first vessel into the second vessel so that the water in the system is in a closed loop system ; and routing the removed pulp material containing 20 to 25 % moisture for further use or disposal .

a coating comprised of a polymeric material and a bioactive agent where the properties of the casting solvent dictate the dispersion of the embedding bioactive agent . in preferred embodiments , controlled release of the bioactive agent is achieved by homogeneous dispersion of the bioactive agent within the coating . a further aspect of the invention is directed to formulations where the heterogeneous dispersion of the bioactive agent provides an initial rapid release of the bioactive agent . methodology for production of coating formulations of the desired properties and the application of the coating to an article are also described .

a powered in - line blender for mixing additives to sludges or other flowable liquid / solid mixtures . the blender is particularly useful in a method of blending polymer to municipal sewage sludges to improve the dewatering characteristics , and thus improving total costs for dewatering , handling , and disposal .

a method of making a microporous carbon material which includes providing a precursor selected from the group consisting of crystalline salts of aromatic sulfonates and nonporous polymeric salts . heat treatment of such precursors in the temperature range of 350 ° to 850 ° c . in an inert oxygen free atmosphere for a sufficient time promotes thermally induced hydrogen abstraction and rearrangement of bsus which result in the formation of a carbonaceous microporous material having a pore size distribution in the range of about 4 - 15 å . the structural and storage characteristics of the microporous carbon materials are also disclosed .

a dual hollow fiber bioreactor comprised of homopolymer construction and a method of using same . the bioreactor being created by thermal bonding incorporating a heat sink so as to preserve the structural integrity of the bioreactor during initial construction and in subsequent treatments during sterilization processes .

this invention provides methods for selectively antagonizing the α4β1 integrin heterodimer in a subject in need thereof , and preferably in a human subject . the methods of the invention utilize conjugates comprising two or more α4β1 small molecule antagonists covalently attached to a biocompatible polymer . these methods of selectively inhibiting α4β1 may be used modulate both normal and pathological biological processes mediated at least in part through α4β1 activity .

an apparatus and method for producing ethylene polymer are provided which employ a conduit in the form of a closed loop for receiving a flow of a monomer which includes ethylene , a polymerization catalyst and a diluent therethrough for the polymerization of the monomer to ethylene polymer . the conduit comprises at least one pipe constructed of rolled plate around which coolant fluid passes in heat exchange relationship .

the present invention is directed to a method of detoxifying water containing a cationic surfactant based biocide . the method comprises adding to an aqueous stream including a biocide containing cationic surfactants a sufficient quantity of a combination including clay and a non surface active sulfonate such as a polymerized alkyl naphthalene sulfonate . the combination allows for a high solids detoxification treatment .

the fine pattern forming method includes the steps of applying an organic polymer film on a semiconductor substrate and heat treating the same ; applying a resin solution on the organic polymer layer and heat treating the same ; carrying out a heat treatment after a pattern is written , causing the generated acid to react with the acid degradation polymer or the acid reactive monomer and carrying out a development in an alkaline solution to form a resist pattern ; and etching the organic polymer layer using the resist pattern as a mask . the use of the resist layer including the silicone resin , the acid generator , and the acid degradation polymer or the acid reactive monomer enables an accurate fine resist pattern to be formed which has a high sensitivity and dry etching resistance , and in which charging is prevented when a pattern is written by a charged beam .

the invention relates to manufacturing thermoplastic material containers with a petaloid bottom by drawing - blowing hot preforms in a blowing mold that has a petaloid mold bottom including radiating ridges alternating with cavities that are adapted to form the valleys and the feet , respectively , of the container bottom ; during drawing , heat losses are reduced in longitudinal zones of the end part of the preforms , extending over the bottom and over an axial portion of their body , distributed over the periphery of the ends of the preforms facing respective cavities of the mold bottom .

devices , systems and methods are disclosed which facilitate reduction of separation forces in additive manufacturing devices , thereby enabling creation of higher resolution parts . in an aspect , an additive manufacturing device utilizing a photopolymer comprises a vat holding photocurable resin , a build platform movable in a vertical direction and an image source which selectively projects part cross sections into the vat in order to polymerize the resin and form a part in a layer - wise fashion . the image area of the vat is formed by a transparent film , such as teflon fep film , stretched under tension . a horizontally slideable shutter is slideable between the film and the imager , providing support for the film when needed .

a compatible , biodegradable microcapsule delivery system for active ingredients , including hormonally active peptides , proteins , or other bioactive molecules , and a method of making the same . the ingredients are encapsulated in biodegradable copolymer excipients of varying mole ratios and the blend of the microcapsules are administered to an animal . delivery of the ingredient occurs over a prolonged period of time at a constant rate as a result of the varying break - down rates of the copolymer excipients .