Datasets:

cwinkler

/

patents_green_plastics_10k

like 0

arrays are provided for multiplexed evanescent scanning by allowing for high - contrast surface plasmon resonance images thereof . the arrays target features are typically biopolymeric in nature , though they may be any sort of chemical or ligand . the type of scanning is such that there is no need for probe labeling . as no labeling is required , a broader range of applications than otherwise possible is facilitated . in the subject arrays , target features are set upon a noble metal film deposited on a substrate . interfeature areas are adapted to trap , divert and / or bleed - away light so that light directed through the substrate will not be reflected by those areas and interfere with evanescent scanning of the reflective areas upon which intended target features are provided . geometric and materials - based light attenuating features are contemplated . arrays as described , hardware and software as required for reading such arrays , and associated methodology are covered .

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 .

a plastic or other film bag is formed from a continuous extruded tube . the tube is flattened and sealed across its width at intervals to form bag bottoms . the bags are joined to one another at a perforation line and folded in thirds lengthwise prior to being rolled into a compact roll , either with or without supporting core . after folding the bags may be chisel cut through the center of the perforation line to assist in dispensing of the bags . the chisel cut will extend through all layers of the bag when folded , resulting in three chisel cuts in the bag . the bags may be gusseted for part or as much as all of their width . the bags may also be corona treated and printed on their outer surfaces . the bags may be formed from partially recycled materials and various combinations of linear low density , medium and high density polyethylene .

this invention includes crash sensors designed to be used for frontal impact sensing and the strategies of using these sensors . it is analyzed and shown that velocity sensing or damped sernsors are desirable for frontal impact passenger compartment sensing . inertially damped sensors , with a damping force proportional to the square of velocity , is preferred for some applications . in other cases a viscous damped sensor is appropriate and in a few cases an undamped spring mass sensor will suffice . such sensors can be made of plastic and in the shape of short housings . a preferred embodiment of this invention utilizes a swinging mass hinged to a housing as the sensing mass . different geometries of the mass and the housing are disclosed and used to improve the performance of such sensors . these flapper mass sensors are useful for sensing frontal impacts in the passenger compartment both as primary sensors and as single or dual contact arming sensors . a method of manufacturing these sensors is also disclosed , in which the contacts are treated to become adhesive to plastic and then molded with the remaining plastic parts of the sensors . the plastic parts are then welded to form a hermetically - sealed interior of the sensor .

an improved shipping system includes a base deck section . the system further includes an upper - tier deck section , that moves between a position atop the base deck section through a variety of positions , including positions that put the upper section out of the way of loading and unloading any load on the base deck section . cartons may be atop both the base deck section and the upper - tier deck section , for shipments , with the upper - tier deck section in the raised configuration . when emptied , the shipping system may be returned with its upper - tier deck section moved down to a position atop the base deck section , and the shipping system stacked upon a similar improved shipping system . shipping efficiency is increased as much as twenty percent and perhaps more . all components are steel , and may also be plastic , wood and the like .

an acoustical noise attenuating platen for an impact printer including lead material fastened with a thermoplastic compound to the rear surface of a non - rotatable bar .

a medical device provided with at least a partial surface coating of a thermoplastic copolymer of tetrafluoroethylene and perfluoroalkylvinylether that is free of cross - linking monomers and curing agents . the fluoropolymer coating is preferably an amorphous thermoplastic , is highly inert and biocompatible , has elastomeric characteristics that provide desirable mechanical properties such as good flexibility and durability . these characteristics allow the coating to be considered “ functionally transparent ” because it withstands mechanical deformations required for the assembly , deployment , expansion , and placement of medical devices , without any adverse effect on the mechanical and biological functionality of the coated device . further , its inertness , derived from the perfluorocarbon structure , contributes to its functionally transparent nature . the coating can be provided with various liquid or solid additives , can be loaded with large quantities of additives including a wide range of therapeutic agents , and has excellent drug elution characteristics when elutable additives are used .

a biaxially oriented laminate film having a first skin layer of a blend of ethylene vinyl alcohol copolymer and amorphous nylon or nylon - containing ionomer ; and a core layer comprising a blend of polypropylene resin and optionally an adhesion promoting resin that promotes adhesion between said blend and said polypropylene resin is disclosed . an intermediate layer could optionally be located between the first skin layer and the core layer , wherein the intermediate layer could have the adhesion promoting resin . the biaxially oriented laminate could optionally have a second skin layer such with the core layer between the first and second skin layers .

the invention comprises a combination of biological elements that will naturally remodel in vivo based on applied mechanical forces . the final composition will possess mechanical properties similar to cartilage or a disc , and significantly less stiff than bone or implants comprised of metals or plastics . the equilibrium stress conduction will minimize unnatural forces on neighboring healthy discs .

flexible laminates and methods for their preparation are disclosed . the laminates comprise co - extensive layers bonded together at their interfaces by a synthetic resin adhesive . one outer layer comprises a sheet of dimensionally stable synthetic resin film and the other outer layer is woven fabric , scrim , warp - knit fabric or a synthetic resin film . the laminate has at least one layer which is a warp of spaced individual strands of a stretch resistant synthetic polymer . where the second outer layer is a fabric the strands in the inner layer warp are oriented parallel to , or at an acute angle to , the warp in said fabric . in one embodiment the flexible laminates have two inner layers each comprised of a warp of individual spaced apart strands of polymer fiber , the strands in one layer being oriented in a direction which is at an acute angle with respect to the direction of orientation of the strands in the other layer . continuous methods of preparing the various laminates are also described . the flexible laminates find especial utility as cloth from which can be fabricated lightweight sails having high strength and stretch resistance in the direction of orientation of the warp strands as well as sufficient stretch and tear strength to withstand the loads in all other directions in the sail .

the invention is to articles made from extracellular matrix sheets that encase biodegradable polymeric material . methods of healing wounds or regenerating tissue at sites of defect by placing said articles in mammals are claimed . the biodegradable polymer can change quality upon contact with a physiological parameter such as temperature or ph that causes , for example , a liquid polymer to gel or harden . the degradation of the polymer can be controlled to suit a tissue regeneration or wound healing time course . additional components such as proteins , cells and drugs can be added to the biopolymer composition .

the method of making a friction locking fastener of the type having in the thread grooves a first deposit formed of a mixture of an uncured epoxy resin and a radiation - curable , film - forming material , and a second deposit of a fluid curing agent and a radiation - curable , film - forming material . the deposits are made in the thread grooves at circumferentially spaced locations so that a very thin coating of the radiation - curable , film - forming material develops at the surface of each deposit . the deposits are subjected to high intensity ultraviolet radiation for a few seconds to transform the coatings developed on the surfaces of the deposits into thin , continuous , flexible , non - tacky protective films which cover the still fluid deposits in the thread grooves of the article . alternatively , when one or both the resin and the curing agent are microencapsulated . they may be contained in a single mixture which includes the radiation - curable material . that mixture , when deposited and exposed to radiation , will form a protective film at the surface . the resin will not be polymerized until the capsule are ruptured .

a chemical seal for isolating the liquid phase of a contained liquid from the vapor phase present in the container headspace comprises a chemically impregnated gel formed by mixing a biopolymer gel , a high molecular weight polymer and chemical impregnants with water to form a gel - forming aqueous solution which is applied to the surface of the contained liquid and allowed to solidify thereby forming a mechanically stable , chemically impregnated gel seal in intimate contact with the contained liquid .

a biosensor for detecting and measuring analytes in an aqueous solution . the biosensor device has a sensor design based on modeling of the active - site chemistry of reactive molecules such as enzymes , antibodies and cellular receptors . the sensor design takes advantage of a synthetic polymer modeled after these reactive molecules to provide reversible , sensitive and reliable detection of analytes in the form of a versatile and economical device .

a cushioned shipping assembly includes a carton and foam inserts to support a product shipped by a supplier , which elements are successively returned by an end user to be reused in the same or other shipping assembly , while various components are recycled as they become spent . in some embodiments , the carton collapses to a diminished size for return . a resource center reroutes or refurbishes the components , recycling aged or spend pieces . on - premises pelletizing of reclaimed polymer provides a more efficient , environmentally clean system . spent inserts of identified polymer may be diverted to users of specific resins .

the present invention generally relates to a bottle having an attached sleeve for improved gripping comprising of a plastic , metal , or polymeric material . the attached sleeve having straps that form a substantially grid like structure having openings and a sleeve dimple at the bottom of said attached sleeve having at least one ridge or at least one protrusion .

an article hanging device for books , records or similar articles is disclosed which includes a tab for mounting on the article and a rail for mounting the article on a vertical surface . the tab is provided with a uniquely designed hook means having surfaces which mate with corresponding surfaces on the rail to facilitate quick and easy storage or retrieval of the article . the tab is preferably made of thin gauge high tensile aluminum and the rail is made of plastic . books or similar articles of all sizes and weights can be displayed economically and decoratively with the device .

compounds containing unsaturated aliphatic moieties which are linked to each other by a tertiary oxycarbonyl containing acyclic moiety are basis for compositions which are cured to polymer networks which are thermally decomposable to provide residue which can be dissolved to allow repair of inoperative assemblies by replacement of inoperative components or recovery or recycling of operative elements which are affixed in assemblies by the cured compositions .

polymeric functional microspheres containing metal or metal compounds are formed by addition polymerization of a covalently bondable olefinic monomer such as hydroxyethylmethacrylate in the presence of finely divided metal or metal oxide particles , such as iron , gold , platinum or magnetite , which are embedded in the resulting microspheres . the microspheres can be covalently bonded to chemotherapeutic agents , antibodies , or other proteins providing a means for labeling or separating labeled cells . labeled cells or microspheres can be concentrated at a specific body location such as in the vicinity of a malignant tumor by applying a magnetic field to the location and then introducing the magnetically attractable microspheres or cells into the circulatory system of the subject . labeled cells can be separated from a cell mixture by applying a predetermined magnetic field to a tube in which the mixture is flowing . after collection of the labeled cells , the magnetic field is discontinued and the labeled sub - cell population recovered .

a plastic storage container with wheel assemblies having an axle pin rotatably fixed to the container , a secure lid latch having a double - wall construction to ease opening and closing as well as an offset hinge to allow protection of the latch during distribution , and an internal tray having dependent flanges which mate to the storage container to prevent the walls of the storage container from splaying .

the invention relates to a liquid acrylic syrup for impregnating a fibrous substrate . the invention especially relates to a viscous liquid syrup mainly containing methacrylic or acrylic components . the invention also relates to a method for producing such a syrup . the invention relates further to a process for impregnating a fibrous substrate or long fibers with said viscous liquid syrup . the invention also relates to a fibrous substrate preimpregnated with said syrup , which is useful for the production of mechanical or structured parts or products . the invention also relates to a production method for producing mechanical or structured parts or items and to three - dimensional mechanical or structured parts produced by said method . the invention applies to the production of mechanical parts or structural elements made of impact - resistant thermoplastic composite material .

a thermoplastic film having a permanently embossed design or geometric shape built therein for controlling the coefficient of friction of sheets of the film when placed adjacent each other . the film has a relatively smooth or female surface on one side and a relatively rough or male surface on the other side . by varying the relationship of one sheet of film placed adjacent another sheet of film or a surface area of the same film , a desired level of coefficient of friction can be obtained . a relatively low coefficient of friction is obtained when two sheets of the film are placed adjacent each other in a female side to female side relationship . a relatively high coefficient of friction is obtained when two sheets are placed adjacent each other in a male side to male side relationship . the film may be perforated or non - perforated and single layer or multi - layer .

an aerodynamic front bumper storage assembly for use with trucks , sports utility vehicles and recreational vehicles which can be adapted for specific recreational use . the bumper storage assembly includes a bumper shell secured to the frame of the vehicle . the bumper shell is constructed from molded plastic which has a top surface , a front surface , a rear surface , a bottom surface , and opposing left and right surfaces which define an interior cavity . the rear surface is configured to be coextensive with the front end engine components of the vehicle . the bumper shell includes a center storage compartment and left and right side compartments which are molded into the bumper shell . the storage compartments are defined by bottom walls supported by four side walls and are respectively accessible from the top surface through center , left and right apertures disposed in the top surface . the center aperture and left and right side apertures each have lids hingedly attached to one of the side edges of the apertures . the lids have a front edge and a rear edge each having a length , wherein the length of the rear edge is greater than the length of the front edge forming an air foil shape which forces the lids into a closed position over the apertures when the vehicle is moving .

the present invention provides a degradable chewing gum base , degradable chewing gum , and methods of making a degradable chewing gum base and degradable chewing gum . the degradable chewing gum base includes at least one polymer or oligomer with at least two ionic groups . the polymers and oligomers possess the chewing characteristics and texture traditionally desired in a chewing gum while simultaneously providing materials which , when exposed to environmental conditions , break down to non - toxic molecules readily assimilated by nature .

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 .

a multilayered polymeric preform or container is disclosed wherein the blow temperatures of each polymer in a preform is controlled by the addition of a predetermined selected amount of a fast heat up additive such that each polymer layer blows at the same relative period of time to prepare the container .

the present invention concerns a process for making polyester containing up to 50 percent by weight transparent recycled waste polyester by a novel equilibrium depolymerization process . the equilibrium depolymerization process of the present invention for making polyester containing transparent waste polyester comprises the steps of providing a stream containing oligomers , feeding transparent polyester waste to an extruder , melting in said extruder said waste polyester , extruding said molten polyester into said stream containing oligomers , completing the esterification creating a prepolymer mixture , and polymerizing said prepolymer mixture thereby producing polyester containing waste transparent polyester suitable for food grade applications . the present invention meets or exceeds the food and drug administration requirements for food contact with polyester and is thus useful in food contact applications , for example beverage containers and polyester film wrap .

a chewable , biodegradable article for use as a pet toy comprises a matrix made of a natural polymer , a synthetic organic polymer or a mixture thereof , a natural or synthetic fibrous material that comprises fibers and that is bonded chemically or physically with the matrix material , and , optionally , includes one or more microbe inhibiting agents that inhibit the growth of microbes in or on the article . the presence of the fibrous material inhibits formation of sharp edges upon breakage when the article is chewed , thereby rendering the article safer when used by pets . also disclosed are processes for manufacturing the above article .

methods of enabling or improving the ability of a hydrogel to swell in the stomach of an animal and / or increasing the amount of time said hydrogel remains swollen in the stomach are described herein . in one embodiment , a polymer is administered in combination with one or more ph modifying agents which raise and maintain the ph of the micro environment of the polymer and / or the stomach in order inducing swelling in the polymer . the polymer can be a homopolymer , a copolymer , or a polymer blend or composite . in one embodiment , the polymer is a superabsorbent polymer . the polymers can also be administered with one or more active agents , such as appetite suppressants . the ph modifying agent and / or the active agent can be administered simultaneously with the polymer in the same dosage form , simultaneously with the polymer in separate dosage forms , or sequentially . the compositions are formulated for oral administration . the formulation can include drugs for delivery to the stomach , such as antibiotics , or the hydrogel can be used as a filler , for example , for obesity control . the formulation an also be used to enhance gastric retention , for example , for controlled drug delivery . methods of delivering a drug are also described herein , along with medicaments for carrying out the methods of the present invention .

in a recycling process , granulated plastic material coated with a paint film is melted in an extruder . during extrusion , the paint film is volatilized and removed by vacuum from the melted granulate stream . additives are admixed with the particulates and any remaining paint film in an extruder . water is introduced into the melted plastic stream in the extruder to neutralize toxic material levels discharged from the extruder and from the extruded plastic material .

the present invention provides a method of manufacturing a porous chemical mechanical polishing pad comprising focusing a laser beam from a laser into a sintering nozzle and injecting the fluidized thermoplastic particles into the sintering nozzle via an injection port . the method further provides sintering the thermoplastic particles with the laser beam and selectively depositing the sintered thermoplastic particles onto a table to form the polishing pad .

a class of molecularly imprinted polymers that specifically recognizes and binds to nitrosamines members of which class are useful , for example , in analysis and separation of nitrosamines from biological fluids . such molecularly imprinted polymers are also useful in methods of treating and manufacturing tobacco products and materials .

microbial biodegradation can be presented as a preferred technique for plastic disposal from the viewpoint of protection of the natural environment , but a problem exists in that plastics are generally not biodegradable . the present invention provides a microorganism capable of degrading a urethane compound and a method for degrading a urethane compound using the microorganism . more particularly , the present invention aims to provide a microorganism capable of degrading a urethane compound used as a source material for polyurethanes and a method for degrading a polyurethane using the microorganism .

an orthopedic screw with an internal bore and mating driver has a bioabsorbable polymer component . to increase the torque tolerance of the screw and to minimize the likelihood of the driver stripping inside the bore of the screw , the screw and driver are heat treated together to shrink fit the screw onto the driver thereby increasing the driver - to - screw contact and distributing the loading force over a greater area to protect against material failure . the heat treatment involves heating the screw to an elevated temperature and holding that temperature for a period to promote stress relaxation and / or crystallization of the material .

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 .

n - halaminehydantoinyl epoxide compounds which can be used for the construction of coatings and materials which can be rendered biocidal by exposure to halogen solutions either before or after curing the coating or material are disclosed . the biocidal coatings and materials can then be used to inactivate pathogenic microorganisms such as bacteria , fungi , and yeasts , as well as virus particles , which can cause infectious diseases , and those microorganisms which cause noxious odors and unpleasant coloring such as mildew . the coatings are compatible with a variety of substrates including , but not limited to , cellulose , chitin , chitosan , synthetic fibers , cement grout , latex caulk , acrylic films , polyurethanes , plastics and paints .

particles are separated from a source viscoplastic fluid by flowing streams of the viscoplastic fluid and a destination fluid in parallel streamed relationship inside a rotating cylindrical annulus by using baffles to introduce each fluid independently at an inlet lower end of the annulus and for separating the upper streams consisting of an un - yielded source and destination flow proximate the radially innermost side of the annulus , a bulk axial flow in a more central region and a yielded layer destination flow adjacent the radial outermost side of the annulus which contains the particles that have separated . inlet and outlet baffles are provided at each end of the vertically oriented device to maintain the flows discrete on entry and to maintain the separated flows discrete on exit so as to facilitate removal of the component flows from the fractionator .

in a method for crystallising plastic granules with a tendency to conglutinate , in particular pet and pu granules , the granules are subjected to vibratory excitation in a vibrating trough transversely to the direction of longitudinal extension of the vibrating trough , at around their reaction temperature . the flow of granules follows a spiral path through the trough , achieving a narrow dwell time spectrum and a homogenous temperature gradient for the granules . conglutination is also reliably prevented .

radical anions for use in the fragmentation of positively charged biopolymer ions by means of electron transfer are produced from substances previously unknown for use as etd production substances . the inventive substances produce radical anions that lead to electron transfer dissociations with a high yield of fragment ions . the substances have high volatility that allows them to be kept in unheated containers outside the vacuum system and transported into the vacuum system to an in vacuum electron attachment ion source via unheated lines and low molecular weights that allow the measurement of even very light fragment ions . in one embodiment , a suitable substance is 1 - 3 - 5 - 7 - cyclooctatetraene .

the present invention describes a polyoxaester copolymer and blends thereof that may be used to produce hydrogels , surgical devices such as sutures , sutures with attached needles , molded devices , drug matrices , adhesives , sealants and the like . the invention also contemplates a process for producing these polyesters . the polyoxaester copolymers of the present invention are formed from a first divalent repeating unit of formula ia : — r 30 — c —] ia a second divalent repeating unit of the formula ib : — c — o — r 3 — o — c — c —] ib and a third repeating unit selected from the group of formulas consisting of : a , ii —] b , iii ] p — o —) l g xi and combinations thereof . these aliphatic polyoxaesters may be blended with other polymers that are preferably biocompatable .

novel membranes comprising various polymers containing heterocyclic nitrogen groups are described . these membranes are usefully employed in electrochemical sensors , such as amperometric biosensors . more particularly , these membranes effectively regulate a flux of analyte to a measurement electrode in an electrochemical sensor , thereby improving the functioning of the electrochemical sensor over a significant range of analyte concentrations . electrochemical sensors equipped with such membranes are also described .

a microfluidic system has an electroosmotic flow pumping means for propelling fluids through a series of microchannels and selection valves . pump channels are configured in groups which may be fabricated singly or in multiple groups onto a substrate . a tube filled with an immobilized polymer provides a means to apply voltages across pump channels , while prevents passages of fluids through it . it also avoids electrolysis and bubble formation in or close to the microfluidic channels . the selection valves provide for routing functions within the microfluidic system and can also be configured to route fluids outside the system . a rate monitoring system is provided for determining and compensating for flow rates . in one application the microfluidic system may be configured to operate as a small volume pipettor or other fluid transport or analysis device . a micro - dialysis jacket is additionally provided to permit desalting , ph adjustment , concentration adjustment , and other functions .

a wagon comprising a body portion , the body portion including a plurality of side portions , each of the side portions comprising wire or plastic sides . the wagon also comprises a plurality of reinforcing metal strips on a top and bottom of each of the wire sides ; and a plurality of metal strips which extend from the top to the bottom of the body portion . finally , the wagon includes a plurality of tie down straps in metal or plastic straps extending from a top portion of and side of the utility wagon . when an attachable leaf chute is combined with the utility wagon , it can also fill individual bags with leaves . the attachable leaf chute slides into and then is attached to the utility wagon .

a product exhibiting an improved cell growth surface and cell attachment . according to the present invention , a stream of plasma is comprised of activated gaseous species generated by a microwave source . this stream is directed at the surface of a polymer substrate in a controlled fashion such that the surface is imparted with attributes for cell adhesion far superior to that of untreated polymer or polymer treated by other methods .

a wet shaving system is disclosed including a blade member and a skin - engaging portion in proximity to said blade member , the skin - engaging portion comprising a solid polymeric shaving aid composite including an exposed portion containing a water - soluble shaving aid dispersed in a water - insoluble polymeric matrix , the water soluble shaving aid being coated with mineral oil .

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 — microparticle composite films 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 , micro - reactors , smart materials . miniaturized format for generation of multifunctional thin films . provides a simple set - up to synthesize thin films of tailored composition and morphology :

a process and apparatus for gas phase polymerization of olefins in a fluidized bed reactor are disclosed . the process and apparatus employ a vertically oriented fines ejector in order to reduce fouling and reactor downtime .

apparatus for sealing a vascular wall penetration disposed at the end of the tissue tract comprises a shaft , an occlusion element , a hemostatic implant , and a protective sleeve . the apparatus is deployed through the tissue tract with the occlusion element temporarily occluding the vascular wall penetration and inhibiting backbleeding therethrough . the hemostatic implant , which will typically be a biodegradable polymer such as collagen carrying an anti - proliferative agent or coagulation promoter , will then be deployed from the sealing apparatus and left in place to enhance closure of the vascular wall penetration with minimum scarring . the implant may be radiopaque to allow observation before release .

a method and apparatus for separating non - biogenic plastic from biogenic waste . a stream of waste materials is delivered through an inlet into a conduit in which the biogenic waste drops out the bottom . the non - biogenic plastic is drawn upwardly by a separator in the form of pressurized gas fed tangentially through two ports in an opposite direction with each other to create a vacuum in the conduit .

the invention provides biocompatible resorbable polymers , comprising monomer units having formula , formula , formula or formula . the polymers degrade over time when implanted in the body , and are useful as components of implantable medical devices .

an apparatus for producing a thermoplastic synthetic resin sheet or film has a casting mechanism having support rollers each mounted to undergo rotation about a corresponding rotational axis and one of which is mounted to undergo non - rotational displacement relative to the other support rollers . a casting sleeve is entrained around the support rollers for rotation therewith . a casting roller is mounted for undergoing rotation relative to the casting sleeve . a synthetic resin material is fed between opposite and confronting outer peripheral surfaces of the casting sleeve and the casting roller while rotating the casting sleeve and the casting roller and while effecting non - rotational displacement of one of the support rollers to holdingly press the synthetic resin material between the casting sleeve and the casting roller and thereby form the synthetic resin material into a thermoplastic synthetic resin sheet or film .

a self - cure , dual - cure or tri - cure polymerizable dental composition is provided with at least one functional chemical . the dental composition is divided into a three - part composition to avoid stability issues caused by degradation and / or loss of function of one component in the extended presence of another component , and the three parts are packaged in a tri - barrel syringe or cartridge delivery system to avoid premature chemical interaction between the functional chemical , redox initiator and / or acid / base .

novel amine terminated bisaspartimides , especially 4 , 4 &# 39 ;- bisphenyl ] aspartimido } diphenylmethane are prepared by a michael - type reaction of an aromatic bismaleimide and an aromatic diamine in an aprotic solvent . these bisaspartimides are thermally polymerized to yield tough , resinous polymers cross - linked through -- nh -- groups . such polymers are useful in applications requiring materials with resistance to change at elevated temperatures , e . g ., as lightweight laminates with graphite cloth , molding material prepregs , adhesives and insulating material .

a method of making a reclosable product package , a package - making apparatus for the method and the reclosable product package in which block cheese or another product which does not slide well during packaging in placed on a continuous length of thermoplastic packaging film . various folding directions of the packaging film and various placement of reclosable zippers produce various reclosable product packages with various peel seal arrangements .

an ultrasonically bonded fabric package for a vaporizable anti - static softening bar to be employed in an automatic dryer . to fabricate the package the bar is placed on a sheet of fabric consisting of approximately 60 to 70 % dacron and 30 to 40 % cotton and the sheet is folded over to enclose the bar . the three open sides of the folded fabric are bonded together by applying pressure to the side edges in an amount of 20 to 40 psi , while subjecting the fabric to ultrasonic vibrations . a thermoplastic velcro hook strip is bonded to the outer surface of the fabric envelope . the hook strip is adapted to engage a velcro loop strip secured to the internal surface of the automatic dryer .

a method of sealing a construction joint is provided which comprises applying a polymeric sizing to the edges forming the joint , applying a mesh to the joint and applying a further coating of the sizing to said deposited mesh . the sizing material can comprise a styrene - butadiene latex , a filler and at least one of a colorant , an acrylic thickener , dispersant , biocide , defoamer , antifoamer , surfactant and an acid .

a hogging , sometimes known as reducing , apparatus for reducing wood waste into hog fuel , though some embodiments may also be used for reducing other materials including demolition timber , demolition masonry , mild steel scrap , soft metal scrap , recycled cans , recycled glass , recycled plastic , soft rocks , occasionally hard rocks , recycled roading and asphalt , old tyres , and certain green garden waste . the apparatus includes a drum inclined to the horizontal and into which raw material can be fed at its upper end . rotation of the drum assists driving raw material towards reducing elements positioned at an angle near its lower end . screening apertures allow sufficiently comminuted material to pass therethrough for removal . optional features include internal agitators for improving processing and screening , assisted drying of raw material by motor exhaust , and initial pre - screening of foreign material .

in the present disclosure , silver ions , copper ions , quaternary ammonium compounds and cationic drugs such as sulphanilamide , chlorhexidine acetate , etc ., used as antibacterial agents are incorporated into fibers , filaments and films through nanoclays . the nanoclays serve as a carrier for the antimicrobial agents and are incorporated into the fiber - forming polymer . in one embodiment , the biocidal metals and organic compounds are incorporated into the clay structure via an ion exchange reaction . nylon nanocomposite filaments and films based on copper and quaternary ammonium ion modified clays provide 100 % antibacterial activity against gram positive staphylococcus aureus and gram negative escherichia coli bacteria at an optimum clay loading of 0 . 75 % , and the activity is retained up to 50 washes . the resulting filaments show enhanced mechanical properties such as tensile strength and modulus , and find application in areas of medical textiles like sutures , wound dressings and health & amp ; hygiene textiles . in addition , they can be integrated into protective clothing , body garments , sportswear and upholstery .

disclosed are beads , which are chemically stable even at a normal temperature , are stable without being disintegrated even if being exposed to light , can emit a plurality of fluorescence excited by irradiating a light of single wavelength , and can be identified by a flow cytometer . a method for preparing the beads , a flow cytometer and a program for preparing the beads are also disclosed . by dyeing semiconductor nanoparticles as a fluorescent reagent to polystyrene beads , beads are identified . at the same time , semiconductor nanoparticles of a different fluorescence wavelength are also used for detection of reporter , enabling snp specification of gene , monitoring or finding of the concentration of biopolymer such as a protein . the semiconductor nanoparticles have a feature that the fluorescence wavelength may vary by controlling the particle size and that they have a high durability compared to an ordinary fluorescent reagent since they are a semiconductor .

synthetic , substantially water - insoluble organic polymers having a backbone or main chain including repeating units of at least one polymer forming biologically active component such as a pesticide are capable of slowly degrading in the medium where their activity is desired to slowly release the free biologically active component and thereby prolong the period of effectiveness of the biologically active component .

a liquid composition for applying a non - leachable antimicrobial coating on a surface . the liquid composition consists of a solution , dispersion or suspension of a biguanide polymer reacted with a cross - linking agent to form an adduct , and an antimicrobial metal material . the resulting antimicrobial coating does not release biocidal levels of leachables into surrounding solution .

a modular plastic extrusion apparatus has several component parts . the design of the integration of those parts into a modular extrusion system is unique . said design allows for rapid assembly , testing , disassembly and placement into production of extruded plastics . this modular plastic extrusion apparatus has several components with replaceable counterparts that , after one product line of a particular color has been extruded by the apparatus , enable the component parts used to produce the particular color extrusion to be removed from the apparatus and replaced with their clean counterparts to continue producing an extrusion product line of a different color while the removed components are cleaned off line .

appliances are made using a dental mold representing a patient &# 39 ; s dental configuration . in particular , thermoformable plastic positioning appliances which fit over the patient &# 39 ; s teeth may be formed over a three - dimensional mold of the patient &# 39 ; s dentition . an apparatus and methods which employ a manipulable or reconfigurable mold to model patient dentition and gingiva at each stage of treatment . the apparatus and methods are particularly useful for performing midcourse corrections during orthodontic procedures using a plurality of such appliances in sequence .

the disclosure describes new compositions and methods related to polyaminals and related polymers . the compositions are useful as therapeutic / drug conjugates , self - healing materials , reversible crosslinking materials , degradable hydrogels , protective coatings , and as metal scavenging agents . new atom efficient synthetic schemes are disclosed , which yield previously unobtainable high molecular weight polyaminals .

sterilizable and printable , wet - laid non - woven substrate exhibiting high - strength and temperature resistance above 140 ° c ., providing sufficient airflow to relieve pressure in a package formed from the substrate during sterilization , providing a significant barrier to penetration by bacteria and debris , and which is sealable to itself and to thermoplastic films , comprises blends of nanofibrillated lyocell fibers , microfibers , fibers having a flat , rectangular cross - section and binder fibers .

a membrane for hemodialysis is prepared by casting , extruding or spinning a solution of a polyether - polycarbonate block copolymer and a swelling agent having a molecular weight of about 1 , 000 to about 20 , 000 daltons , then partially evaporating the solvent , gelling and washing . the membrane has a top cut - off value less than about 68 , 000 daltons , and hence is substantially impermeable to albumin , but nonetheless provides high permeability to water and to other small molecules .

rolls of pre - stretched cling film are used to manually wrap and unitize bulky loads such as boxes on a pallet . using film that has previously been plastically stretched simplifies the wrapping operation . unfortunately , however , the pre - stretched rolls of film have edges which are prone to fail during use . the disclosed invention concerns rolls of pre - stretched cling wrap having improved edges that are less prone to fail , and the method and apparatus for producing such rolls .

a plastic cutlery feeder for receiving a backlog of cutlery items from a source and for feeding individual items in proper orientation and proper phase to a flighted conveyor of a wrapping machine . the backlogged items are received in a vertically oriented position by the cutlery feeder which changes the items to a horizontal orientation with a single item supplied to each flight of the wrapping machine conveyor .

a method of tertiary oil recovery from petroleum - containing formations at elevated temperature comprises injecting a substantially oxygen - free aqueous saline solution of water - soluble polysaccharide biopolymer treated at ph of at least 5 by the addition of alkali metal borohydride as viscosity stabilizer .

a bioresorbable polymer is obtained by reacting together a prepolymer comprising co - polymerised units of a caprolactone and poly moieties ; a polycaprolactone diol comprising co - polymerised units of a caprolactone and a c 2 - c 6 diol ; and a diisocyanate . the polymer may be loaded with a pharmaceutically active agent to produce a drug delivery device .

the present invention relates to cell wall degradative systems , in particular to systems containing enzymes that bind to and / or depolymerize cellulose . these systems have a number of applications .

disclosed are oligonucleotides useful in methods for determining whether a sample contains borrelia afzelii , a spirochete which is a causative agent of lyme disease in humans . these oligonucleotides , which have nucleotide sequences derived from a coding segment of the gene encoding the p24 gene for the outer surface protein of borrelia afzelii , are useful as forward and reverse primers for a polymerase chain reaction using nucleic acids from a biological sample as templates , and as probes for detecting any resultant amplicon . detection of an amplicon indicates the sample contains borrelia afzelii . real - time pcr and detection using florescence resonance energy transfer is disclosed .

a conveyor press for applying a surface pressure to moving workpieces , such as wooden planks , rubber and plastic webs and the like , has at least one pressing band arranged to be pressed against a workpiece . a pressure plate applies a working pressure to an operating portion of the pressing band ; a plurality of rolling bodies is arranged in the region of the pressure plate in frictional contact with the pressure plate and the pressing band and may be returned from an outlet end to an inlet end of the pressure plate . the rolling bodies are formed as roller assemblies ; each includes a row of rollers assembled in a unit . the rollers are located in alignment with one another in a final position and are rotatable relative to one another .

it is not understood what causes or influences pattern formation in cells during the development of an organism . when animal / human cells are cultured in a petri dish the adherent cells attach to the bottom of the dish , whereas the non - adherent cells float in the growing medium . currently there are no specialized dishes for culturing non - adherent cells . we now show that non - adherent cells could be induced to form distinct patterns when cultured in an etched plastic dish . the non - adherent cells showed polarity when cultured in the etched plate . the polarity / pattern formation could be reversed with inhibitors specific for adhesion proteins . the phenomenon of pattern formation by non - adherent cells has wide applications in cell and developmental biology , diagnostics , microbiome research , biofluidics , drug discovery , industrial production of biological products , and also in biotechnology and bioengineering .

a packing material for liquid chromatography comprising monovinyl aromatic monomer and divinyl or polyvinyl aromatic monomer is disclosed , wherein , in gel permeation chromatography , exclusion limit molecular weight is not less than 1 × 10 3 in terms of standard polystyrene , average particle diameter lies within a rage of 0 . 5 to 50 μm and the constitution rate of divinyl or polyvinyl aromatic monomer in copolymer particles is not less than 60 % by weight , and a method for the preparation thereof is claimed , wherein suspension polymerization is carried out in a mixed aqueous solution containing organic colvent which dissolves whole monomer containing not less than 60 % by weight of divinyl or polyvinyl aromatic monomer in whole monomer by amounts of 50 to 300 % by weight of the solvent to both monomers and does not dissolve the copolymer of these monomers and radical polymerization initiator .

the invention relates to a multilayered film comprising at least one upper layer a ), a middle layer b ) made of acrylate copolymer , and a supporting layer c ) made of polycarbonate . upper layer a ) contains a light - stability agent and is made of a acrylate copolymer that , together with the polycarbonate of supporting layer c ), can form partially compatible mixtures . a test piece , which is made from a mixture consisting of 20 % by weight of acrylate copolymer and 80 % by weight of polycarbonate , has a breaking elongation of at least 75 % at 23 ° c . the middle layer b ) contains a colorant and , optionally , a light - stability agent and is made from an identical or different acrylate copolymer that , together with the polycarbonate of supporting layer c ), can form partially compatible mixtures . a test piece , which is made from a mixture consisting of 20 % by weight of acrylate copolymer and 80 % by weight of polycarbonate , has a breaking elongation of at least 75 % at 23 ° c ., and the supporting layer c ) is made of polycarbonate that , optionally up to 30 % by weight of the material of the layers , can contain a ) and b ). the invention also relates to the production and uses of the multilayered film and to partially compatible polymer mixtures consisting of acrylate copolymer and polycarbonate .

anti - adherent material for coming into contact with the epidermis such as sheets , surgical dressings , various kinds of bandages and the like are disclosed which comprise a homopolymer or copolymer of tetrafluoroethylene containing at least about 50 % tetrafluoroethylene deposited upon a support material which is resistant to the fritting temperature of the homopolymer or copolymer , the support material containing from about 25 to 90 % homopolymer or copolymer and from 10 to 75 % support material and possessing regularly disposed perforations for from about 0 . 1 to 10 % of the surface thereof .

there is disclosed a method for the ammonia saturation of wood to impart flexibility thereto which includes the step of sealing the surfaces of ammonia - saturated wood with a polymeric film which has limited or no permeability to either or both ammonia and water vapor . preferably , the polymeric film is flexible so the working of the wood product by bending , twisting , embossing , molding , etc . will not destroy the film . the polymeric film should also be soluble in a selected solvent , thereby permitting its removal after the wood has been formed in a final , desired shape to permit water vapor to re - establish crosslinking of the cellulose chains and restore its natural , rigid condition .

thick - skinned extruded metal honeycomb structures , and a method and apparatus for making them , are disclosed wherein a plasticized powder metal extrusion batch is extruded though a die assembly comprising a die and annular mask , the mask having a central outlet for extrusion of the skin and honeycomb core and an extrudate reservoir adjacent the central outlet , the die and mask cooperating to form a skinforming gap fed by the die and by the extrudate reservoir , such that batch material supplied from the reservoir and directly from the die combines to form a thickened outer skin which is integral with , and resistant to separation from , the honeycomb core .

the present invention discloses a dissoluble pdms - modified p amphiphilic copolymer and the method of fabricating the same . the amphiphilic copolymer of the present invention is fabricated via chemically bonding hema , maa , and poly , bis terminated in aqueous solution . the pdms - modified p amphiphilic copolymer can be dissolved completely in polar solvents , particularly alcohol solvents , to facilitate subsequent processing . the amphiphilic copolymer features adjustable hydrophobic - hydrophilic properties and exhibits excellent biocompatibility . thus , it can be utilized in a number of advanced applications , including anti - fouling and drug delivery .

a impact resistant rim is configured to soften or minimize an impact , thereby reducing the risk of pinching or otherwise flattening the tire and / or damaging the rim . this impact resistant rim further reduces the effects of an impact by maintaining the integrity of the rim during and following the impact . in this rim design , a shock absorbing cord is inlaid , molded , an / or otherwise embedded inside opposing leading edges of the rim . the shock absorbing cord is designed to elastically and / or plastically deform during an impact .

an apparatus for dry placer mining to concentrate recoverable metallic constituents , such as gold or silver , from a dry gravel mix containing same is comprised of a frame for supporting and guiding an endless belt along a path including an upwardly inclined segment for receiving gravel particulate ; an endless belt including a woven mesh belt member , a plurality of riffle members disposed in spaced parallel relationship within the intertices of the mesh member , and a composite fabric member disposed in face - to - face contact with the bottom surface of the mesh member ; and a fluidizing member for passing a fluidizing gas upwardly through the endless belt along the inclined segment for fluidizing the gravel particulate and for establishing an electrostatic charge proximate the riffle members . the composite fabric member is specially constructed to permit a proper airflow for fluidizing the particulate and for assisting in the establishment of an electrostatic potential proximate the riffle members . this special construction includes a layer of an air - pervious polymeric foam disposed intermediate a pair of cloth fabric layers having progressively tighter weave patterns .

effects of deprenyl or propargylamine compounds and novel compositions comprising at least one mao inhibitor and at least one antiinflammatory agent such as nonsteroidal antiinflammatory drugs , steroids , acetaminophen , 5 - lipoxygenase inhibitors , leukotriene receptor antagonists , leukotriene a4 hydrolase inhibitors , antihistaminics , histamine 2 receptor antagonists , phosphodiesterase - 4 antagonists , cytokine antagonists , cd44 antagonists , antineoplastic agents , 3 - hydroxy - 3 - methylglutaryl coenzyme a inhibitors , estrogens , androgens , antiplatelet agents , antidepressants , helicobacter pylori inhibitors , proton pump inhibitors , thiazolidinediones , dual - action compounds , combinations of these drugs with other agents , derivatives and metabolites of synthetic and natural antiinflammatory agents . the compounds and compositions protect against gastrointestinal , renal and other toxicities induced by antiinflammatory agents , and enhance the beneficial effects of these drugs . effects of mao inhibitors such as 1 - deprenyl co - administered with antiinflammatory drugs or chemically attached to antniinflammatory drugs are disclosed . therapeutic methods of using mao inhibitors and antiinflammatory drugs for the prevention and treatment of inflammatory disorders , pain , fever , cancer , gastrointestinal lesions , and a variety of cardiac , cerebral and peripheral disorders are disclosed .

an electronic control system for apparatus of the type used for imprinting or marking nameplates and other similar workpieces . the control system of the present invention has particular application for use with electrically operated marking machines of the type which utilize a keyboard and a marking member which may be displaced to imprint or mark characters or symbols carried by the marking member on metal or plastic nameplates or other similar workpieces . the control system may be operated in a number of modes selectable by the operator including a mode in which the selection of the character or symbol to be printed is followed immediately by marking or printing of that character on the work - piece , other operational modes in which a number of characters can be selected or inputted without printing , and entire lines of characters and multiple lines of characters can be imprinted without interruption , and modes in which the entire label can be pre - formatted on a display prior to marking or printing and the formatted display can be saved for later use .

a process and material therefrom is described where a material comprised of a continuous orientable polymer matrix with one or more discontinuous or continuous second phases is stretched in the solid state using more than one device to apply force to the unoriented material to form a material that consists of a continuous oriented polymer matrix with one or more other phases . at least one of the phases releases from the oriented polymer matrix forming voids during the orientation process , thereby reducing the density to less than that of the original unoriented mixture . one or more of the phases may stay bonded to the continuous oriented polymer phase , acting as a reinforcing agent and forming no voids . methods for forming such a material allowing for the control of the final shape and affecting the final density independent of the composition are also disclosed .

a holding device for the pedal mechanism of a motor vehicle is presented , which has at least one pedal block with pedals fastened thereto pivotably and a baseplate . the baseplate and the pedal block are made of plastic in one piece . the pedal block for holding a pedal has a mount for the pivot axis of the respective pedal . the mount is made of two side walls located opposite each other . the side walls are formed of sheet metal and the mount is injection molded in the plastic pedal block . the sheet metal mount forms a deformation device for the release of the pivot axis in the case of an accident of the motor vehicle .

synthetic drumsticks for musical purposes and methods for making them . the present drumsticks are characterized by having a microcellular foamed structure . the preferred method comprises injection molding of thermoplastic materials that are saturated with gasses , particularly in their supercritical phase . the products of the injection molding process are drumsticks formed to final dimensions and ready for use . the foamed materials are preferably made from filled resins . the formation of micron - scale gas cells during the molding process yields formed drumsticks that are similar to woods or better , in feel and durability . the products of the invention further have advantages of durability , recycleability , exact matching of properties , improved shock absorption , and “ livelier ” rebound from the drumhead thus preventing forearm fatigue in the user . the present drumsticks also provide a better / sharper “ ring ”, than wooden drumsticks , when used on cymbals . by adding coloring agents during manufacture the drumsticks can be made in any color and can also be made to glow in the dark .

apparatus for making gas - filled filling bodies includes a supply reel for storing a pre - fabricated half - tubular plastic film having an at least partially open border side and being divided into individual pockets by weld seams which extend transversally with respect to a transport direction of the plastic film . positioned downstream of the reel and receiving the plastic film from the reel is a gas filling device for blowing air into the pockets . positioned downstream of the gas filling device and receiving the plastic film from the gas filling device is a welding tool for welding the open border side of the plastic film for formation of closed filling bodies . the transport of the film through the apparatus is realized by a drive unit which applies a force upon the plastic film essentially downstream of the gas filling device , as viewed in the transport direction .

this invention harvests nanocomposite which enable targeted delivery of antibiotics . biodegradable and biocompatible polymer such as diethylaminoethyl - cellulose are used in combination with iron , which contributes its magnetic characteristics to the nanocomposite . the nanoparticles produced could be used as carriers for releasing chloramphenicol at the targeted site for sustained release .

if at least the front surface layer and back surface layer of a plastic card formed from a plurality of layers are formed as antibacterial layers including coating layers , printed layers or sheets containing a powdered antibacterial agent , and this configuration is applied to hospital examination cards or various other types of cards that are handled by large numbers of persons , the spread of infections , etc ., via said cards can be prevented even if said cards are not subjected to a disinfection treatment .

a closure system including a polymeric split ring clamp and a polymeric lid for a polymeric drum . to maintain the integrity of the closure , the lid rim region is formed having an annular restraining notch which cooperates with twist inhibiting blocking components formed within the interior of a cooperating inwardly opening polymeric split ring clamp . the blocking component may be provided as a sequence of regularly spaced block - like protuberances located within the inward upwardly disposed region of the ring clamp . a secondary closure arrangement is provided with the split ring clamp which receives a polymeric banding strap to prevent one end of the split ring from disengaging with an associated pivot arm . when the split ring clamp is in a fully open or pre - clamping mode orientation , a capture groove is formed with the ring pivot shaft formed at one end of the split ring clamp . this capture groove is aligned with and engages a corresponding capturing pawl formed at the opening of the ring pivot shaft receiving notch . to facilitate cleaning and re - use , a polymeric gasket is provided which is removably insertable within a seal retainer cavity located at the rim of the lid .

a fibre - based surgical implant stabilized against fraying , includes a thermally crimped flat - knitted fabric of a biocompatible , optionally biodegradable , polymer material having a glass transition temperature or other thermally induced secondary conformational mobility threshold in the temperature range of from 20 ° c . to + 170 ° c . also disclosed is a corresponding fabric and methods of producing the implant and the fabric .

a solution polymer process is made essentially energy - free by employing solvent vapor from steam stripping as the sole heat source during the separation of heavies from recycle solvent .

a container for packaging frozen food in which the food can be reheated including a paperboard tray having upstanding side walls and horizontal flanges and an upright central divider wall forming separate food compartments in the tray . each compartment can be subdivided by pivoting a panel cut from the base of the tray transversely of the compartment to an upright position and locking the panel to the central divider wall . a pre - formed , semi - rigid blister of thermoformable plastic material is combined with the paperboard tray to provide a leak proof container .

a bioadhesive composition is provided which may be employed as an oral drug delivery system and includes a freeze - dried polymer mixture formed of the copolymer poly and gelatin , which is dispersed in an ointment base such as mineral oil containing dispersed polyethylene . such bioadhesive compositions may be used to deliver oral mucosa active ingredients such as steroids , anti - fungal agents , anti - bacterial agents and the like .

a process for forming sheet metal material having a yield strength and tensile strength which are sensitive to small changes in temperature at ambient conditions , wherein an unheated sheet metal workpiece is drawn between a concave die cavity and a mating convex punch by relative movement therebetween into the internal configuration of the die , and wherein the workpiece is selectively cooled in those areas which are susceptible to breakage . cooling may be effected by cooling portions of the punch , or in complex part designs by cooling localized portions of the die , or both . the amount of cooling is relatively slight and may be only that required to remove heat generated by plastic deformation of the workpiece in the areas susceptible to breakage .

in the continuous catalytic polymerization of isobutylene , the exothermic heat of reaction is removed by vaporizing unreacted hydrocarbons , compressing and condensing the vaporized hydrocarbons to yield a liquid condensate at a pressure and temperature higher than that in the reaction zone , reducing the pressure on the liquid condensate to reduce its temperature to that of the reaction zone , separating any vapors thus formed and recycling the liquid condensate to the reaction zone . the process provides an energy efficient means of controlling reaction zone temperature . the process can be employed when using either a fluidized or fixed bed catalytic system .

a method of producing an improved cell growth surface and cell attachment surface . according to the present invention , a polymer article is molded at temperature in excess of 550 ° f . at the injection tip . after allowing the part to cool , a stream of plasma comprised of activated gaseous species generated by a microwave source is imparted on the article . this stream is directed at the surface of a polymer substrate in a controlled fashion such that the surface is imparted with attributes for cell adhesion superior to those of untreated polymer or polymer treated by other methods .

the present invention provides a resilient absorbent foam containing starch , a superabsorbent material and a plasticizer . the absorbent foam is highly absorbent , dimensionally stable , resilient and flexible as well as biodegradable and flushable . additionally provided is an absorbent foam comprising starch and a plasticizer , which is highly resilient and flexible . the present invention also provides an absorbent article containing the resilient absorbent foam .

multi - armed functional polyethylene glycol polymers with active terminal groups may be used in conjugation with small molecule pharmaceuticals , proteins and peptides to enhance half - life and bioavailability of the drug and improve solubility , stability and immunological competence .