Datasets:

cwinkler

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patents_green_plastics

like 1

a method of separating a polymer from a biomass containing the polymer , includes contacting the biomass with a solvent system , the solvent system including a solvent for the polymer and a precipitant for the polymer , to provide a residual biomass and a solution that includes the polymer , the solvent for the polymer and the precipitant for the polymer ; and applying a centrifugal force to the solution and residual biomass to separate at least some of the solution from the residual biomass ; where , the polymer is a polyhydroxyalkanoate ; the precipitant comprises at least one alkane ; the solvent for the polymer is selected from the group consisting of ketones , esters and alcohols and combinations thereof ; and the biomass comprises a slurry of the biomass and water .

a method for synthesizing enzyme - catalyzed polymers using the langmuir - blodgett technique . in one embodiment , the process comprises spreading one or more enzyme - polymerizable monomers on a water - miscible solvent . the monomers are sufficiently surface active that they align themselves on the air - solvent interface . next , pressure is applied to the interface to form a monolayer made up of the monomers . an enzyme is then introduced into the solvent , causing polymerization of the monomers in the monolayer . the polymeric monolayers produced by the present method are easier to process and have reduced cross - linking and branching as compared to similar polymers produced in bulk by enzyme - catalyzed reactions .

bioprosthetic devices include an exterior biological tissue member which at least partly defines a cavity , and a proteinaceous biopolymer which fills the cavity , and intercalates and is chemically bound to the tissue of the surrounding biological tissue member . in preferred forms , the bioprosthetic device is a bioprosthetic vertebral disc having a fibrillar outer annulus which surrounds and defines an interior cavity and is formed by removal of at least a substantial portion of the natural gelatinous core therefrom . the cavity defined by the fibrillar outer annulus may then be filled with a flowable proteinaceous biopolymer . preferably , the proteinaceous biopolymer is a liquid mixture comprised of human or animal - derived protein material and a di - or polyaldehyde , which are allowed to react in situ to form a cross - linked biopolymer within the cavity . the liquid mixture may be formed in advance of being introduced into the cavity , or may be formed simultaneously during introduction into the cavity .

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 at least one disease state relative to recognition of the presence and / or the absence of the biopolymer , predict disease risk assessment , and develop therapeutic avenues against the disease .

a plastic pallet and method of construction that permits plastic pallets of numerous different sizes and options to be easily produced from only a very small inventory of parts and without requiring a user to purchase or construct numerous different shapes and sizes of molds in order to produce a wide variety of pallets of various shapes , sizes and options .

there is provided a multiple - component tampon applicator formed from at least three separate components . a fingergrip having a reduced cross - section as compared to that of the barrel may be formed such that it is a separate component or is integrally formed with a barrel component . the reduced cross - section fingergrip provides exceptional grippability to the user . the multiple components may be formed from materials including , for example , biopolymer including starches and proteins , cardboard , heat shrink plastic , paper slurry , plastic , plastic tubing , pulp slurry , pulp - molded paper , or any combinations thereof . prior to assembly of the applicator and prior to loading the barrel component with an absorbent pledget , petals may be formed on the insertion end of the barrel using existing processes and equipment . alternatively , a separate insertion tip component having petals may be formed . this separate component may then be connected to the barrel component either before or after an absorbent pledget is loaded into the barrel component .

a barrier foam tray contains recycled reclaim of barrier foam . the tray comprises a sheet of foamed polystyrene having laminated to it a flexible barrier film . the foamed polystyrene part can have admixed therein from 0 . 0001 % up to 30 % by weight of the flexible barrier film . the barrier film contains a barrier polymer such as ethylene vinyl alcohol copolymer . the tray is made by grinding laminate scrap and extruding reclaim therefrom with virgin polystyrene .

disclosed are bonding agents useful in the production of pelletized or briquetted fuels . the bonding agents may be incorporated into a feed containing the fuel material , providing both adhesion and cohesion of the fines to produce a uniform and predictable pellet or briquette . specifically , the bonding composition contains a solubulized starch , a sugar source and / or a diol or polyol compound , and optionally a polymer selected from polyvinyl alcohol , pvoh copolymers , polyvinyl acetate , polyvinyl acetate copolymers , ethylene vinyl acetate or any subset or combination of such polymers . also disclosed are methods of preparing the bonding agents and to densified and / or torrefied biomass products prepared therewith .

a mold especially adapted for forming precast , waffle - shaped concrete panels employs a one - piece mold body of plastic sheet material to provide a reusable mold structure that may be rapidly stripped and reset . each corner of the mold body is open ; thus , the sides of the mold present pliable flaps due to the inherent flexibility of the sheet material and are swung outwardly after molding is completed in order to release the molded product . external reinforcing members on the sides maintain the same rigid and true during the molding process . the corners are held closed by simple locking devices which are readily released for stripping . raised portions in the mold body form the characteristic voids in the molded waffle product , and are reinforced and rigidified by a foam filler . other features include longitudinally extending expansion joints between the mold body and reinforcing members , holdups on the pliable sides of the precasting mold , and the provision of built - in rebar supports which also form notches in the webs of the molded waffle product that serve as electrical and plumbing raceways .

this invention relates to a new technique for preparing metal devices such as guidewires for the subsequent attachment of hydrophilic coatings . the invention also relates to guidewires and other devices made according to that method . in one embodiment of the method of this invention , a hydrocarbon residue undercoat is applied to a metal guidewire core by plasma deposition . a photoactive hydrophilic polymer is then deposited on the hydrocarbon residue coating and activated by ultraviolet light . the hydrocarbon residue coating acts as a tie layer between the hydrophilic polymer and the metal guidewire core apparently by providing c -- c bonds for the covalent linking of the coating material to the tie layer . the resulting article of this invention is a guidewire having the maneuverability of a metal guidewire and the biocompatibility of a lubricious , hydrophilic polymer .

a method for fabricating a soft mold is disclosed , in which process matching is high regardless of a size of a master mold for forming the soft mold . the method for fabricating a soft mold includes arranging a master mold on a jig , forming a pre - polymer layer in the jig , attaching a back - plane substrate onto the pre - polymer layer , selectively curing the pre - polymer layer to selectively form a polymer layer , stripping the polymer layer and the pre - polymer layer from the jig and the master mold , and removing the pre - polymer layer that is not cured .

an accumulation head for a blow molding machine which produces a parison of a first melt material having a stripe of a second extruded plastic material formed by directing a second extruded plastic material into the stream of a first plastic material as the material in the accumulator is extruded to form the parison .

a molding method includes joining first and second molds to define a mold cavity ; injecting a plastic into the mold cavity ; and projecting the eject pin into the mold cavity with the molds joined together , thereby applying pressure to the plastic in the mold cavity .

a laminated wear ring for a chemical mechanical planarization apparatus provides improved control of the removal rate of material from the edge of a wafer during a polishing / planarization operation . the laminated wear ring includes a high stiffness stainless steel base and a plastic laminate . the high stiffness stainless steel base avoids flexing of the wear ring during polishing and thus provides control of the flexing of a polish pad against which the wafer surface is pressed . the plastic laminate protects the stainless steel base from attack by the polishing slurry and provides a buffer that protects the stainless steel base from mechanically damaging the wafer and vice versa .

a method for manufacturing a liner having baffles therein for use in flexible bulk containers , having the steps of : positioning a baffle strip of thermoplastic material adjacent to a continuous sheet of thermoplastic film ; heat sealing the baffle strip to the continuous sheet of film at spaced apart intervals ; alternately varying the length of continuous sheet film adjacent to the length of baffle strip material between adjacent heat seals to form pockets of excess continuous sheet film between alternating pairs of heat seals ; cutting the continuous sheet to a length substantially equal in length to the circumference of the flexible bulk container and ; folding the continuous film sheet in half with the attached baffle strip on the inside of the fold and with the fold extending perpendicular to the length of baffle strip ; and heat sealing the ends opposite the fold to form a tubular shaped liner with the pockets of the excess film sheet forming corners therein .

the invention relates to a process for making porous cross - linked charged cellulosic polymeric membranes capable of binding to a target molecule . the invention provides methods for separating target molecules from other components in a solution comprising use of membranes obtainable by the process of the invention . the method has particular utility in separating proteins and nucleic acids from cell lysates and cultures .

a decorative pane is disclosed comprising two outer panes sandwiching a plastic supporting substrate to which at least one decorative element has been applied . also disclosed is a decorative pane comprising a plastic supporting substrate to which at least one decorative element has been press - fit .

a display channel apparatus for displaying containers comprises a starter channel , a plurality of extender channels , fronts and rears . these components include a plurality of horizontally - engaging mating connectors that are preferably integrally formed , and formed without slides or pulls in the plastic molding dies , and further that have sufficient length and stiffness to provide a stable assembly after interconnection . they also facilitate quick assembly by sliding engagement on a table top . in one form , the components are laterally compressible / extendable to a selected width for receiving a particular sized product , and clips or connectors are adapted to fix the selected width . the individual components and the assembled components mate together for densely - stacked compact arrangements for storage and / or shipping . also , the components can be selectively assembled to meet individual needs and preferences , as well as broken down for reuse , refurbishing , and / or recycling .

the present invention discloses new nanoassembled complexes consisting of a central nucleus formed by a high - affinity interaction from nucleic acids and avidin , wherein said nucleus is stabilized in aqueous solutions , even saline , and protected from further unspecific unwanted interactions by means of suitable polymeric agents capable to mask totally or partially the nucleus itself . the nanocomplexes obtained have been shown to be stable in aqueous solutions and to have nanoparticle features . in addition , the nano - complexes have shown characteristics useful for use in biotechnological field and in nanomedicine .

hydroxamic acid polymers which are comprised of hydroxamic groups and carboxylic acid groups wherein the carboxylic acid groups constitute less than about 3 % of the functional groups . the polymers hereof are also especially useful in biomedical applications because , for example , the low concentration of carboxylic acid groups decreases the incidence of bioincompatibility . additionally , the polymers exhibit anticoagulant activity , urease inhibition activity , metal chelating activity and ion exchange activity .

the present invention relates to water - resistant , thermoplastic starch materials processable into environmentally safe , thermoplastically produced products and cast sheets , which consist of starch acyl compounds , obtainable from high amylose starches and the derivatives thereof and being sparingly soluble in water , and of plasticizers which like ethyl citrate , glycerol acetate and lactic acid ester have a gelatinizing effect and preferably a dissolution property resulting in brilliant transparence and , as can be proved , are biodegradable .

a biocompatible bonding material is applied as an intermediary to attach prosthesis to boney tissue . the bonding material has the strength and rapid setting characteristics of pmma cement , and is incorporated by the supporting bone as the boney ingrowth and osteogenic growth processes take place . in one embodiment , the bonding material is comprised of calcium phosphate polymer that provides immediate hardening and bonding , thereby locking the prosthesis to the bone . the biologic bond allows for bone in - growth over a period of weeks providing long term fixation . the immediate bonding can eliminate the early loosening that commonly occurred with uncemented joint replacements .

the invention relates to a method and device with which it is possible to arrange complicated shapes with considerable differences in height in wood fiber board , and in particular but not exclusively so called mdf . the deformation of the wood fiber board which can be achieved is known in the art as extrusion , wherein a considerable plastic deformation takes place accompanied by flow and stretch of the material .

the present invention relates to the biotechnology field , more particularly , to novel recombinant staphylokinase derivatives and the preparation the thereof . the derivatives , have a low polymerizing ability , low immunogenicity and a bifunctionality of thrombolytics and anticoagulant . based on the trimensional structural analysis of the monomer and dimer of recombinant staphylokinases and their biochemical properties , we designed two novel bifunctional staphylokinase molecular structures . mutant genes were constructed by pcr site - directed mutagenesis , which were then recombined with a prokaryotic vector and used to transform e . coli . engineered strains with a high expression level were selected by screening and propagated by fermentation , followed by disruption of the cells , centrifugation to collect inclusion bodies , renaturation , and purification of rgd / kgd - sak through a two - step method . after lyophilized , the polymerizing ability and immunogenicity of the products decreased significantly . the derivatives can not only activate fibrinogen to lyse thrombus , but also significantly inhibit the platelet aggregation induced by adp , suggesting that they have the bifunctionality of thrombolytics and anticoagulant .

a device for calibrating an extruder plastic profile having a calibration unit for the profiled strand coming - out of a molding profile nozzle is described , the calibration unit having a molding body enclosing the profiled strand , having calibration surfaces , which press against the profiled strand , and vacuum slots , which run in the calibration surfaces transversely to the passage direction of the profiled strand and are connectable to a partial vacuum source . in order to provide advantageous construction conditions , it is suggested that at least individual vacuum slots penetrate the molding body transversely to the passage direction and be closed on outside of the molding body using a removable cover .

the present invention relates to an obtainment process of biodegradable polymers from a citric residue resulting from the processing of orange juice . the polymers obtained are polyesters classified as polyhydroxyalkanoates including , among them the poly and poly . the biodegradable polymer is obtained from the batch culture process or fed batch culture process with or without recirculation of the cells , using as a carbon source the pre - treated pressing liquor and / or the citric molasses . the polyhydroxyalkanoates , herein described , can be used as substitutes of the synthetic polyesters in different areas , including the food , pharmaceutical , medical , agricultural and other areas .

a polymer of siloxanes as flexibility monomers and strength monomers is provided . it is also provided a polymer blend that contains a polymer formed of siloxane monomers and strength monomers and another biocompatible polymer . the biocompatible polymer or polymer blend described herein and optionally a bioactive agent can form a coating on an implantable device such as a drug - delivery stent . the implantable device can be used for treating or preventing a disorder such as atherosclerosis , thrombosis , restenosis , hemorrhage , vascular dissection or perforation , vascular aneurysm , vulnerable plaque , chronic total occlusion , claudication , anastomotic proliferation for vein and artificial grafts , bile duct obstruction , ureter obstruction , tumor obstruction , or combinations thereof .

a biocompatible intermolecular polymer complex comprises an anionic component and a non protein cationic component . the anionic component comprises a linear or branched polysaccharide chain wherein at least 5 % of the basic structural units are glucuronic acid . the cationic component comprises a linear or branched natural , semi - synthetic or synthetic oligomer or polymer .

plastic molds for ophthalmic devices and methods of making such molds are disclosed . the plastic molds are provided with abrasion resistant , release - enhancing faces formed by coatings of particular compositions of polyacryloylated alkane polyols and alkane polyols .

antibiotic - associated diarrhea , such as that caused by clostridium difficile , represents a serious medical complication that can result from administering a broad - spectrum antibiotic to a subject . such diarrhea leads to significant potassium loss from the subject . the present invention discloses a polymeric therapeutic agent that treats antibiotic - associated diarrhea and is physiologically potassium neutral . this polymer contains polystyrene sodium sulfonate and polystyrene potassium sulfonate repeat units .

a multi - well assay plate structure and assay apparatus and a method for performing chemical biochemical assays is described . the multi - well assay plate structure defines a relatively shallow substantially enclosed space above a plurality of wells , with the enclosed space having an inlet and an outlet separate from the inlet . fluid introduced via the inlet flows into the space and / or wells by displacing air . withdrawal of the fluid via the inlet or outlet leaves fluid in the wells allowing various tests to be performed . various embodiments of the structure are described . the preferred arrangement embodies the structure on a transparent plastic disk which can be used with automatic fluid handling apparatus and the results assessed using optical assessment apparatus . the apparatus can be used to perform a variety of assays but , in particular , biochemical / chemical assay , immunoassays and genetic assays and it can be used in a laboratory for multiple sample testing or at a point - of - care , i . e . in a surgery or clinic .

a heat shrinkable polymer material is particularly adapted for implanted biomedical use . a polycrystalline polymer is irradiated to produce crosslinking of its intramolecular structure to thereby impart viscoelasticity . the material is biocompatible and suitable for implanted use , from the standpoints of very low toxicity , ability to retain structural integrity and being non - carcinogenic and , moreover , is heat shrinkable at a temperature compatible with such implanted use .

a composition of matter comprising sophorolipids as antimicrobial agents , antifungal agents , biopesticides , for uses as drugs to treat hiv , septic shock , cancer , asthma , dermatological conditions , as spermicidal agents , as anti - inflammatory drugs , as ingredients in cosmetics and building blocks for monomers and polymers and self - assembled templates for further chemical elaboration .

the present invention is a modified hfpb polymer for use in propellants and explosives that is chemically degradable and also is compatible with commonly used energetic plasticizers . the hfpb polymer of the present invention contains ester linkages formed in the backbone of the polymer from a dicarboxylic acid containing either oxymeythylene or oxyethylene moeities . the ester and ether linkages change the polarity of the polybutadiene to make it compatible with polar energetic plasticizers . the ester linkages along with either oxymethylene or oxyethylene moeities make the polymer degradable to basic solutions while still maintaining the structural integrity necessary for a polybutadiene type binder .

an exhaust module made of a thermoplastic material which is connected to a fascia or bumper of a vehicle . in one embodiment , the hybrid fascia mounted exhaust tip assembly includes a bracket . the bracket has a large diameter portion which surrounds , but is not in contact with , an exhaust pipe . the exhaust pipe is free to move around as a result of the vehicle traveling over bumps in the road and around turns . the bracket also has a small diameter portion which is connected to the large diameter portion . a ring tip has a portion that slides onto a bezel portion of the small diameter portion .

a four - station rotary thermoformer has a rotary carriage which transports a sheet of thermoplastic material clamped on a subframe through a load / unload station ; a heating station ; a forming station where the sheet is molded ; and a cooling station removed from the mold where the part is cooled on the subframe . the molded sheet is cooled in a cavity which has a lower portion mounted on a lift which travels vertically to engage against an upper portion and enclose the sheet for cooling . a multiplicity of air vents discharge cooling air into the cavity . cooling air leaves the cavity through recirculation duct . the supply of air within the cooling cavity results in a uniform current of air against the article &# 39 ; s surface , thus providing uniform cooling . a programmable controller controls the supply of cooling air and receives input from an infrared sensor which detects the temperature of the thermoformed article and also receives information from a sensor of the cooling air temperature . the programmable controller is programmed to provide a cooling cycle consisting of a three - parts . in the first part , the air is recirculated using the heat capacity of the recirculating air in the air supply system to start cooling at a low rate . during the second part , the flow of cooling air temperature is lowered until a pre - determined maximum cooling rate is reached and held for a selected time . during the third part , the cooling air is again recirculated .

a family of carboxylic acid groups containing fluorene / fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries . triethyleneoxide side chains provide improved adhesion to materials such as , graphite , silicon , silicon alloy , tin , tin alloy . these binders enable the use of silicon as an electrode material as they significantly improve the cycle - ability of silicon by preventing electrode degradation over time . in particular , these polymers , which become conductive on first charge , bind to the silicon particles of the electrode , are flexible so as to better accommodate the expansion and contraction of the electrode during charge / discharge , and being conductive promote the flow battery current .

embodiments of the present invention provide a three - panel lidding device used to seal a food container . such devices are particularly useful for covering and sealing a plastic food container , eliminating the need for an outer carton and the clear film membrane that traditionally covers a food container . the lidding device may contain all brand identifiers , product messaging , ingredient list , instructions printed directly on the device . the device may also allow for venting of the food container during cooking and may then be removed for serving . the device may further provide a foot panel that allows the food product container / lidding device to sit upright , enhancing store front and freezer display options .

a brace for securing cargo inside a containing device , such as the cargo bed of a truck , includes a first cylindrical pole with mounting brackets at opposite ends of the pole for engaging the sidewalls of the container . the cargo brace is selectively adjustable along its lengthwise axis to decrease or increase its length . furthermore , the mounting brackets are pivotally connected to the pole to permit the brace to be installed at a selected orientation to the sidewalls . in another embodiment , the aforementioned brace includes a t - connector which is mounted arond the first pole and further includes a second pole which is engaged to the t - connector and which is perpendicular to the first pole . the second pole includes a mounting bracket which engages another sidewall or floor of the container . in another embodiment , a sleeve , having flanged ends which are perpendicular to the sleeve , and a handle , is mounted about the first pole to secure the cargo in the container . typically , pads fabricated of an appropriate elastomer are employed at the ends of the brace to prevent damage from metal - to - metal contact , and the base is surrounded with one or more sleeves of a polymeric material to prevent damage to cargo contacted by the brace .

the invention provides a method and apparatus for continuously feeding wet gel polymers into a drying step of a dry polymer synthesis operation . a number of pistons are arranged having inner chambers through which monomers and other reagents are fed and polymerized into wet gel polymers . each piston operates according to a coordinated schedule so that as one piston finishes extruding polymer into the drying step , a second piston has completed polymerizing more polymer and continues to feed more polymer without interruption . the then finished is re - fed more reagents so as to be ready again when needed next . as a result , cost effective continuous feeding can be achieved without the contamination and impurity problems that have plagued previous attempts to accomplish this .

in one embodiment , a method of modifying a surface of a membrane includes exposing the surface to an impinging atmospheric pressure plasma source to produce an activated surface , and exposing the activated surface to a solution including a vinyl monomer . in another embodiment , a method of manufacturing a desalination membrane includes treating a surface of the membrane with an impinging atmospheric plasma source for an optimal period of time and rf power , and exposing the surface to an aqueous solution containing a vinyl monomer . in another embodiment , an apparatus includes a membrane having a surface , and polymer chains terminally grafted onto the surface of the membrane .

a method of making a one - piece , rigid thermoplastics body for a discrete , releasable push - in tube coupling device of the collet type comprises initially injection moulding the body about one or more rigid cores . each rigid core is then withdrawn axially while the moulding is still in a plastic state whereby the outer , narrower bore portions of the body expand radially . the expanded portions are then radially contracted back to their as - moulded configuration using a jaw - like tool and finally the body is allowed to cool .

in the drive assembly of a reciprocating slat conveyor , three transverse drive beams extend over and across three piston rods . the drive beams have side flanges in which three pairs of downwardly opening recesses are formed . one pair of recesses receive upper portions of a first piston rod . the other two pairs of recesses receive plastic bearings through which the other two piston rods extend . each drive beam flange is provided with a cap member . each cap member includes an upwardly directed recess for each downwardly directed recess in its drive beam flange . bolts extend through openings in the cap members and thread into internally threaded openings in the drive beam flanges . each piston rod is provided with a member which provides radially upwardly projecting pairs of flanges between which the drive beam flanges are situated . this provides an interlock structure that connects the piston rods to the drive beams so that piston rod motion is transmitted to the drive beams . as each drive beam moves front to rear along with its piston rod , it slides relatively along the other two piston rods that are situated in bearings that are carried by the moving drive beam . the engagement of the drive beams with the piston rods via the bearings results in each drive beam being braced from the other two piston rods against yaw , pitch and roll movement .

polyurethane foam compositions and processes to make flexible polyurethane foams are disclosed . polyurethane foam is produced in the presence of additives comprising guanidine derivatives . improvements in physical properties such as air flow , dimensional stability , tensile , tear , elongation and foam hardness is observed when these additives are present in polyurethane formulations . in addition , these additives can minimize polymer degradation under humid ageing conditions resulting in foam products with better mechanical properties .

a device for collecting and packaging solid waste or toxic material is provided . a first arm and a second arm are coupled with a lever , wherein at least one arm is slidably coupled with the lever . a bag may be positioned in an open position when the first arm is located distally from the second arm , and the bag may be closed by an operator manipulating the arms towards each other . the device may include a motor and / or a spring or springs to drive the arms towards and / or away from each other . a plate , a pole and / or a handle may be coupled with the arms . the plate may be positioned relative to the arms to stabilize the waste or toxic material for insertion into the bag . the bag may include an adhesive , paper , plastic , recycled plastic , vegetable matter and / or cellulose .

the present invention is directed to several multisubstrate adduct inhibitors of glycinamide ribonucleotide transformylase , a folate - requiring enzyme of de novo purine biosynthesis . the compounds of the present invention will be useful to provide anti - gout and / or anti - neoplastic therapeutic agents or will serve as potentiators for other such agents . the most prefeffed , potent tight - binding multisubstrate adduct inhibitor of glycinamide ribonucleotide transformylase , is n 10 -- 5 , 8 - dideazafolate , which has the chemical formula : ## str1 ##

polymeric medical fixation screws with multiple cannulations and thereby a reduced risk of shearing while being torqued into place are provided . the polymeric screws have at least two cannulae , on either side of a central longitudinal axis of the screw , extending parallel to the longitudinal axis . torquing instruments are inserted into the cannulae so that the applied torque force for driving the screws into a bone hole is distributed along the shaft of the screw . in one embodiment , the invention provides interference screws , while in other embodiments the invention provides medical fixation screws with heads and soft tissue - to - bone anchors or suture anchors . the polymeric screws may be fabricated from virtually any suitable biocompatible polymers or composites , including bioabsorbable polymers and their composites .

thermoplastic parts are made of predominantly single unit thickness but with marginal areas of increased thickness by molding two parts in a common mold having overlapping mold portions . two thicknesses of thermoplastic material are molded together in the areas of increased thickness at opposite ends of the common mold and the parts are separated from one another by trimming such that each part has an area of increased solid wall thickness and an area of reduced thickness .

thermal spray apparatus capable of directing plasticized powders against a substrate for deposition of a protective coating thereon is disclosed . various structural details of the apparatus of the present invention enable the attainment of high particle velocities without melting the particles . the apparatus is built around the concept of reducing the temperature of a hot plasma stream after the hot plasma stream is generated . particles are injectedinto the hot plasma stream only after the medium is cooled . in detailed embodiments , a generated plasma is cooled by the addition of a diluent gas or by passing the generated plasma through an elongated heat exchanger upstream of the point at which the powders are to be injected .

a method for making a punch and stripper assembly for a reciprocating metal - punching press in which the stripper is integrally molded about the punch while in the punch holder through the use of a certain plastics material mold cooperating with the punch holder , and a substantially liquid plastics material that can be poured in the mold and will set to a solid condition integral with the punch .

compostable hydrocarbon polymers , composites , and articles anaerobically biodegrade in landfills in a relatively short time . composite polymeric articles and sheets such as indoor or outdoor signs , billboards , banners , images , protective barriers , backdrops and wall coverings have very useful service durations and yet are landfill biodegradable .

an initial chemical composition comprising selected surfactants , dispersants , and degreasers that liquefy , disperse , demulsify , degrease , inhibit corrosion and scale formation , and lower the pour point of a petroleum , coal , fischer - tropsch synthesized , or naturally occurring paraffin - based wax and asphaltene . such a product is capable of converting crystalline wax in , for example , slop oil into an amorphous form of wax at room temperature , allowing the wax to be dissolved in , for example , crude oil without the need for heating , and maintaining it in solution at room temperature , substantially reducing , indeed in some applications , preventing , for example , wax build - up in pipelines , processing and transportation equipment , etc ., and the recovery of the hydrocarbons in the slop oil . in a second aspect of the invention , the pre - blend addition of a hydrotrope - demulsifier , a chelating agent and a wax plasticizer can result in a bs & amp ; w of zero for the recovered hydrocarbon blend .

a method for detecting a list of known biopolymer molecules comprises : calculating , for each biopolymer , a respective list of oligomer molecules predicted to be produced by chemical processing ; calculating , for each oligomer molecule , a respective predicted chromatographic elution time period ; assigning , for each biopolymer molecule , one or more selected oligomer molecules to be detected , wherein the selecting is performed using weighted selection probabilities determined from the predicted elution times ; scheduling a plurality of oligomer detection events of a detection system , wherein each oligomer detection event corresponds to a respective one of the predicted elution time periods ; performing the chemical reaction or processing of the sample to generate a processed sample ; introducing the processed sample into a chromatographic system ; introducing any eluting oligomers into the detection system ; and operating the detection system so as to search for each of the selected oligomer molecules in accordance with the scheduled detection events .

multi - layer plastics film laminate structures are disclosed . these structures have particular utility as inner and outer layers of multi - layer bag structures or as single layer bag structures , particularly for use in bag - in - box applications .

a reusable decal system for use with building bricks , toys , and accessories made of plastic or other similar substance , which includes flexible cling decals and a non - porous backing sheet and a system for customizably designing and printing images on the cling decals . the cling decals are cut in a plurality of shapes and printed with a plurality of designs as to form windows , doors , signs , vehicle parts , animals , people , letters , numbers and symbols for the purpose of creating customized play sets , building brick creations , toys , and accessories . in use , the cling decals are peeled from a backing sheet and applied to the plastic building bricks , toys , or accessories in a variety of configurations . the cling decals can be reused in different or changed plastic building brick creations , other plastic toys , or other plastic accessories .

the fabrication of an injection - molded plastic part using a blow - mold resin includes a first step of modifying an injection - molding machine by enlarging resin passages in order for that machine to accept a more viscous resin . the next step in the fabrication process is to provide a mass of blow - molded resin heated to a viscosity suitable for the modified injection - molding machine . a third step is to introduce the mass of blow - molded resin into the modified injection - molding machine . the fourth step is operating the modified injection - molding machine in a manner consistent with the normal operation for injection - molding of the desired plastic part . a part of the present invention is the specific method of modifying component parts of the injection - molding machine so that those component parts are compatible with a more viscous plastic resin .

the present disclosure relates to the field of shape memory materials , it discloses a betaine - based shape memory polymer and the preparation method thereof . the polymer is formed through free radical polymerization of an unsaturated betaine monomer , an acrylic monomer , and an ethylene glycol divinyl ether monomer with the addition of an initiator . the betaine - based shape memory polymer has thermosensitive shape memory property and wet sensitive shape memory property , and it has good biocompatibility and an excellent shape memory property , antibacterial property . it is of great potential for use in engineering , construction , daily life and medical service .

an apparatus for determining hydraulic pressure within a pressure sensing fluid filter assembly includes a pressure - sensing polymer thick film transducer associated with an oil filter assembly . preferably , pressure sensors are provided on both the oil inlet and outlet areas of the filter . the pressure - sensing transducers send signals to a control module , which may compare pressure readouts at the inlet and outlet sides of the filter . based on the pressure in the filter , the on - board sensing system will detect a clogged filter condition , and if necessary , the control module will send a signal to an in - dash display terminal , to indicate that an oil change is needed .

an electrofusion coupling for coupling a first device to a second device , includes a first part having an outer end for coupling to the first device , and an inner end formed with a surface of a curved configuration ; and a second part having an end engaging the inner end of the first part and formed with a surface of a complementary curved configuration as the first part . the curved configurations of the two parts is such that the second part may be pivoted to locate its longitudinal axis at different angles with respect to the longitudinal axis of the first part . at least one of the parts is of a thermoplastic material and includes an electrical heater coil embedded along its curved surface for fixing by electrofusion the angular position of the second part with respect to the first part .

a process for the production of a plate with a polymer frame shaped onto the edge of the plate . the frame is extruded onto the plate while the latter is held stationary in a working station of a handling automaton or robot with a support device which corresponds to the shape of the plate in such a way that the edge of the plate projects freely over the support face of the support device . with the aid of the robot , an extrusion die having a through , mouth - like slot with two jaws engages the top and bottom surfaces of the circumferential edge of the plate as the mouth - like slot engages the plate edge . at the front end of the two jaws of the die mouth , there are sealing ledges movable at right angles to the plate surfaces , which are supported on the latter during the extrusion process .

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

a method of coating an spr biosensor specific for an analyte to reduce protein fouling , the method has the steps of providing an spr biosensor , providing a solution of 11 - mercaptoundecanol ; incubating the spr biosensor in the 11 - mercaptoundecanol solution to form a self - assembling monolayer ; incubating the spr with sam in a solution of epichlorohydrin and diglyme ; next incubating the spr in ethanolamine ; preparing a solution of edcnhs and a biocompatible polymer ; incubating the spr from ethanolamine in the edc / nhs / polymer solution ; providing a ligand specific for the analyte in a solution ; incubating the polymer - coated spr in the ligand solution to permit the ligand to react with the polymer - coated spr ; washing the ligand - coated spr to remove unreacted ligand , thereby providing an spr capable of reacting with the analyte . another method replaces the solution for the sam layer with a solution of mha or nhs - mha with ht , and attaches the ligand to the resulting sam layer .

an economical and commercially practical reverse - osmosis water purifier system which has no back pressure acting against the semipermeable membrane , so that the filtering rate is maximized . furthermore , the supply of tap water to the system is shut off automatically as soon as the pure water storage tank is full , use of water thus being greatly reduced . these , and other major advantages , are achieved despite the fact that there is only a single tube extending to the faucet , automatic ice - maker , refrigerated drinking fountain or other point of use . the system uses rugged , long - lasting and economical diaphragm valves , which eliminates the need for sliding seals . thus , it becomes highly practical to injection - mold the valves of plastic . the long - standing major problem of plugging or fouling of the constricted outlet for waste water is eliminated at low cost and with very little use of water . what water is used provides not only cleaning of the constriction region but also a partial flushing of the filter membrane . these results are achieved by means of a self - cleaning constrictor valve having a predetermined flow area which may be made as small as the manufacturer desires . in one embodiment , a valve is provided to automatically stop the outflow of squeeze water while the faucet is in open condition . this saves additional water and also makes it possible to build up a relatively high pure - water pressure even when the inlet pressure is less than average .

folded paperboard food cartons having a polymer coating only on the interior surface and sales graphics on a substantially unplasticized clay coated exterior surface are heat sealed at contiguous areas of overlapping flaps wherein the polymer coated interior surface is in direct contact with a small portion of the clay coated exterior surface or , where it is desired to secure together two portions of the clay coated exterior surface . in such heat sealing areas , small and accurately located exterior clay coated carton surface areas are primed with a water based polymer emulsion such as ethylene vinyl acetate that is precisely applied to such areas by a printing press .

this invention relates to a new class of piezoelectric composites with a radial design . more particularly , the radial design of these new ceramic / polymer composites show a higher sensitivity in the radial direction than conventional tube structured devices . devices made utilizing this novel design will therefore show significantly enhanced performance in many applications .

the invention relates to a method for preventing fouling in polymerization reactors , in particular in loop reactors , in which alpha - olefins are polymerized or copolymerized in particle form in the presence of catalysts . a mixture of alpha - olefin - acrylonitrile copolymers and polymeric polyamines is added into a reactor in order to prevent the fouling of the reactor .

an electrically conductive thick film resin composition comprising finely divided particles of a conductive metal dispersed in a liquid organic medium comprising acrylic polymer primary binder and network resin auxiliary binder having a thermal degradation temperature of at least 300 c . dissolved in volatile organic solvent .

method for connecting thin - walled plastic tubes by heat welding wherein a normal plastic tube is heated and provided with a funnel - shaped widening and another tube is heated and provided with a conical narrowing , the narrowing being pushed into the funnel - shaped widening so that these parts are heatsealed to each other .

this invention is a delivery system to deliver biologics such as vaccines or chemicals such as chemosterilants , repellents , or toxicants to free - roaming or wild animals such as raccoons , dogs , or foxes , without capture or physical restraint . the biologic or chemical is placed in a water - proof ampule or capsule which is imbedded in a synthetic bait comprising attractants and other additives on a polymeric support . the product will stimulate the target species to chew sufficiently that the active agent will be expelled in the oralpharyngeal cavity , particularly against the buccal mucosa . the specific adaptations of the invention depend on the eating habits of the animal species targeted .

a method is disclosed for detecting boron labeled biopolymers , biooligomers , and other species that bind to the biopolymers , and biooligomers with specificity . the biopolymers include rna , dna and proteins . the biooligomers include rna oligomers , dna oligomers , and peptides . the biopolymers and biooligomers are labeled with a borane , or a boron - hydride moiety . the borane and boron - hydride moiety are employed to reduce a metal ion , e . g . silver , to metal or metal oxide , metal boride or other metal species , or alternatively to reduce a dye , or another organic or inorganic compound . the product of the reduction reaction can be visualized with or without signal augmentation , by one or more means , including the naked eye or a microscope , or can be detected through the use of analytical equipment that can detect conductivity , voltage , density , ultraviolet or visible light , fluorescence , luminescence , phosphorescence , paramagnetism , magnetic susceptibility , or any other detectable physical property . the invention provides methods for selectively detecting biopolymers and biooligomers that contain such a boron - label , thereby permitting their selective identification within an environment where unlabeled like and / or unlike species are present .

a method of preparing a mixed - phase thermoplastic biomaterial comprises contacting and reacting a diol and a graft pre - polymer comprising a diol and at least one covalently bonded unsaturated monomer with an organic diisocyanate compound . the reaction is conducted within an aprotic solvent and for a period of time and at a temperature sufficient to produce the mixed - phase thermoplastic biomaterial . the diol may be selected from the group consisting of siloxane diols , polyether diols , polyester diols and polycarbonate diols while the at least one covalently bonded unsaturated monomer may be selected from the group consisting of a fluorinated monomer , a siloxane monomer , an aliphatic ester of methacrylic acid , a cyclic ester of methacrylic acid , a charged monomer , a sulfonium salt , a vinyl monomer with phenol or benzoic acid , n - vinyl pyrrolidone , an aminoglucoside , and a therapeutic agent . the mixed - phase thermoplastic biomaterial may further include an anti - microbial , a therapeutic agent or both .

an ink jet recording element comprising a support having thereon an image - receiving layer comprising non - porous polymeric particles in a polymeric binder , the non - porous polymeric particles being present in an amount of at least about 8 parts of particles per part of polymeric binder , and the non - porous polymeric particles having a degree of crosslinking of at least about 30 mole %.

a stabilizer composition which includes a uv absorber of foramidine derivative , a uv absorber of benzotriazole derivative , and an antioxidant is disclosed . the stabilizer composition disclosed here are suitable for improving the stabilization of the organic polymers to against the degradation by light .

generic and specific artwork is imparted to plastic discs such as cds , cd roms , and dvds by exposing a layer of photoresist material on a forming member , which already contains generic artwork , to light from an original image of specific artwork . the material of the photoresist layer is exposed to different depths by different intensity light from different specific image regions . where the image is dark , the exposure is to relatively shallow , random depths . where the image is light , the full thickness of the photoresist layer is exposed . development of the photoresist layer removes the exposed photoresist material . the surface features of the developed photoresist layer and any uncovered forming member surface are transferred to a second forming member used in forming a surface of the plastic disc , thereby visibly embossing both generic and specific artwork in the disc .

a friction stir tool is provided to perform friction stir riveting using a partially consumable pin , wherein the pin includes a cutting edge on a bottom surface thereof , wherein the tool is rotated at a first speed to enable cutting by the pin into a first material that is overlapping a second material , wherein after the pin has cut to a sufficient depth , the rotational speed of the tool is increased to thereby enable plasticization of the consumable pin , the first material , and the second material , wherein the tool is then rapidly decelerated until stopped , enabling diffusion bonding between the pin , the first material and the second material .

an improved apparatus is disclosed in which a tensioned plastic strap loop is placed about an article . the invention includes a laterally adjustable forward guide . the guide is pivotally connected to the feed nip of the drive mechanism so as to provide a constant gap between the nip and guide . the rear end of the guide rests upon and moves with the forward gripper . thus , a guide is provided which minimizes abrasion , can receive straps of different widths , and be easily and quickly cleaned .

a method and apparatus are disclosed for the production of injection molded products from synthetic resinous materials , such as nylon , which tend to be degraded when exposed to oxygen while they are heated to the temperatures required for injection molding . the apparatus includes a barrel having a discharge opening , a screw receiving bore and a vent opening between the feed opening and the discharge opening . a two stage rotatable reciprocable screw is mounted in the bore and includes a vented portion in registry with the vent opening . water vapor and volatiles are generated during plasticization in the first stage of the screw , and evolve as the material enters the vent section of the second stage . the vapors are exhausted through the vent opening . the vent opening is provided with a check valve which readily permits the exhaust products to pass from the screw receiving bore . however , the check valve effectively prohibits the entrance of atmospheric air through the vent opening to the vent section .

an improved method and apparatus for injection molding is shown which utilizes an injection molding or plasticizing unit in combination with a novel detachable clamping unit to provide a readily interchangeable clamping unit having easy access to both halves of the injection mold .

a method for restoring and reusing railroad ties and the resulting product are disclosed . according to the method , otherwise spent wooden ties are sorted as to their apparent suitability for providing a core for reuse . those found unsuitable are discarded , while those found to be suitable are milled or trimmed about their dimensions to define a suitable core . that core is banded about a transverse perimeter and then submitted to a reaction injection molding process by which urethane or other suitable polymers impregnate the various voids , holes and cracks in the core , bond with the bands , and define a finish unit having the overall size and configuration of previously known railroad ties . the encapsulated product is then capped or plugged at the ends to ensure that the resulting product is impervious to penetration by the environment .

a reinforced composite structure is disclosed comprising at least a reactive resin , thermosetting system or other suitable resin composition sandwiched between two metal , thermoplastic or ceramic substrate materials . the structure can also be modified through the addition of one or more fabrics , metallic meshes , fibers , polymer spacers or other suitable materials positioned within the resin composition and sandwiched between the substrate materials . the resulting structure comprises a composite with reduced thickness and weight as compared to solid metal panels of corresponding flexural strength . the composition of the structure also allows for the tailoring of the properties to affect sound abatement , insulation , strength , and toughness among other characteristics . the structure can be formed and cut to shape to fit any of a number of suitable applications such as ceiling tiles and bulkhead panels in marine vessels .

a method of manufacturing a fiber - reinforced article by providing a foam core made from a polyol containing at least one unsaturated c ═ c group and a hydroxyl functional group . a fiber - reinforcing layer is placed adjacent the foam core . an uncured liquid resin wets the fiber reinforcing layer and the outer surface of the foam core . the resin reacts with the unsaturated c ═ c group of the polyol by a free radical reaction . the resin also cross - links and forms a solid polymer encasing the fiber - reinforcing layer . the resin bonds the fiber - reinforcing layer directly to the foam core . the fiber reinforcing layer , foam core and resin form a composite laminate structure that is stronger and more resistant to delamination because the resin is chemically bonded to the foam core .

a method and apparatus to process a diverted molten polymer waste stream directs the polymer stream to one of at least two passages , separates it into individual segments while containing and discharging it from a containment exit , cools each segment with a quench fluid to form a solid or semi - solid polymer , and transports the solidified segments away from the exit and into a container using the quench fluid . the apparatus includes a cross - section transition connector , a moveable block with two passages , a block oscillator , a cut - off plate , and open space above an inclined transporting device , a quench fluid jet , and a quench fluid transporting trough .

the invention describes a method for bonding components of a sputtering target , comprising the following steps : providing a first component and a second component , the harder of which has undercut protrusions ; positioning them against each other ; and pressing them towards each other resulting in a plastic deformation of the material of at least one of the two components , filling the undercuts thereby creating interlocking , as well as the bonded assembly so created , and its recycling . no step creating bonding other than interlocking on a major part of the bonded surface area is necessary .

provided is a touch panel . the touch panel includes a base and a pressure - sensitive adhesive layer attached to the base and including an acryl - based polymer containing an acryl polymer containing 5 to 30 parts by weight of isobornyl acrylate , and 5 to 40 parts by weight of methyl acrylate in a polymerized form . accordingly , it can effectively inhibit penetration of oxygen , moisture or other impurities at an interface between the base and the pressure - sensitive adhesive layer , or at an interface between a conductor thin film and the pressure - sensitive adhesive layer , and prevent degradation in optical properties such as visibility , etc . due to bubbles generated at the pressure - sensitive adhesive interface . in addition , when the pressure - sensitive adhesive layer is directly attached to the conductor thin film and even exposed to severe conditions such as high temperature or high temperature and high humidity , a change in the resistance of the conductor thin film may be effectively inhibited , and thus the touch panel can be stably driven for a long time .

a composite construction , such as , in particular , a composite plate having a sandwich - type construction , has two outer layers which are mutually opposed in parallel and a foam material completely filling the space between the outer layers at least in some regions . the outer layers are interconnected by means of spacers , and the spacers are connected to the outer layers via a cured plastics material .

a flat triangular piece , usually of shatter resistant plastic , is formed with straight edges and is used in connection with a t - square for drawing perpendicular lines and geometric shapes . the outside peripheral corners are rounded for safety purposes and the intermediate portions of the legs are slotted or recessed to permit the utilitarian reproduction of triangular lines and shapes with sharp points .

a method and apparatus for the manufacture of lens molds used in the formation of optical contact lenses , the apparatus including a center gate aligned on the central axis of the lens mold cavity for delivery of the melt polymer in an axisymmetrical manner . the methodology produces lens molds of extremely precise dimensions as measured against lens molds produced with side gated technology .

a method of reducing a c — o bond to the corresponding c — h bond in a substrate , which could be a benzylic alcohol , allylic alcohol , ester or an ether bond beta to a hydroxyl group or alpha to a carbonyl group using a recyclable metal catalyst system . the recyclable catalyst system is also applicable to reducing a c ═ o bond to the corresponding c — oh bond and then c — h bond . these methodologies can be linked in one - pot to selective oxidation and depolymerizations of aromatic polyols such as lignin .

the present invention discloses a method that can be used to identify one dna sequence or one specific group of dna sequences from a complex biological sample . diverse molecular biology methods require the use of short dna sequences , called oligonucleotides , that are artificially synthesized from a description of their composing bases . the disclosed method allows the design of oligonucleotides useful for said molecular biology procedures , like probe design procedures , and is characterized by the construction of a database of reference sequences , the selection of a subset of sequences belonging to target organisms , the selection of candidate oligonucleotides from such sequences , the depuration of these candidate oligonucleotides according to hybridization specificity and thermodynamic stability criteria , and the sorting of such oligonucleotides according to their taxonomic specificity . in a second aspect , a method is disclosed to design oligonucleotides pairs or primers , which are required in certain molecular biology techniques , like polymerase chain reaction techniques . this method is similar to the first aspect of the invention , but thermodynamically compatible oligonucleotides pairs or primers that hybridize to the same sequence at a distance which is within a given range are evaluated .

the present invention describes a wireless system and method for distributing sensors in large numbers that makes possible the application of a number of algorithms for the extraction of important physical quantities . more specifically , the method involves formation of an electromagnetic waveguide by the application of a polymer , or other dielectric material , on the exterior of the hull of a vessel ; insertion of sensors / radio units within the waveguide , the sensors being arranged to sample the fields of interest ; and insertion of radio transceiver base stations in the waveguide to communicate and extract data from the sensor / radio units . the wireless system of the present invention is implemented with a very high sensor count whose outputs are processed to recover exterior field quantities without the requirement of direct measurements off of the vessel &# 39 ; s structure .

the present invention describes a novel antibacterial treatment on textile materials using polymeric core - shell particles dispersing in water . these particles are prepared from a surfactant - free emulsion polymerization according to the method of u . s . pat . no . 6 , 573 , 313 and have average particle sizes in the range of 100 to 1000 nm in diameter . when applied to a textile article , the particles form a uniform coating , which prevents the growth of bacteria and microbes . the treatment does not affect the fabric mechanical properties , hand feeling and appearance . antibacterial activity on cotton is maintained even after 50 times of home laundering .

coated abrasive comprising a backing and abrasive grain adhered to said backing by means of a binder . the binder is prepared from a composition that is curable by free - radical polymerization . the composition contains abrasive grain suspended therein at the time the composition is coated onto the backing . the abrasive exhibits high endurance for extended periods of use . the coated abrasive is prepared by a method comprising the steps of : providing a coatable composition comprising a binder curable by free - radical polymerization , said composition having lapping size abrasive grains suspended therein , coating said composition on a backing , and curing said composition by means of free - radical polymerization .

a process for the production of a polymeric article directed to forming a ply having successive layers , namely , a first layer made up of strands of an oriented polymer material ; a second layer of a polymeric material ; a third layer made up of strands of an oriented polymeric material , wherein the second layer has a lower peak melting temperature that of the first and third layers ; subjecting the ply to conditions of time , temperature , and pressure sufficient to melt a proportion of the firsts layer to melt the second layer entirely , and to melt a proportion of the third layer , and to compact the ply ; and cooling the compacted ply . the resultant articles have good mechanical properties yet may be made at a lower compaction temperature than articles not employing the second layer , leading to a more controllable manufacturing process .

monolithic organic copolymer prepared by copolymerisation of an alkylstyrene and a divinylbenzene or a derivative thereof in the presence of a porogen , wherein said porogen comprises decanol and at least one of the group consisting of tetrahydrofuran and toluene .

an article for the controlled delivery of an active substance , comprising a hollow space fully enclosed by a wall and filled in full or in part with one or more active substances , which wall is made using a biodegradable polymeric material permeable to the active substance , wherein the wall is composed mainly of a combination of at least two different polymeric materials in which one polymeric material is permeable to the active substance and is degradable and the other polymeric material is relatively poorly permeable to the active substance and is degradable and the conveyor path for the delivery of the active substance from the hollow space to the surroundings of the article is a continuous distance leading at least through the polymeric material permeable to the active substance .

a gram - negative bacterial strain , pseudomonas putida tx2 , was isolated from farmland , which had received frequent applications of a various pesticides and surfactants . this strain was demonstrated to have the capacity to grow on alkylphenol polyethoxylates or alkylphenol as sole source of carbon and energy . the metabolic activity of this strain can be applied in the degradation of organic polymers containing ethoxylate units , alkylphenol and alkylphenol derivatives .

a method for manufacturing open cavity integrated circuit packages , the method comprising : placing a wire - bound integrated circuit in a mold ; forcing a pin to contact a die of the wire - bound integrated circuit by applying a force between the pin and the mold ; injecting plastic into the mold ; allowing the plastic to set around the integrated circuit to form a package having an open cavity defined by the pin ; and removing the open cavity integrated circuit package from the mold . a mold for forming a package for an integrated circuit sensor device , comprising : a bottom part for supporting an integrated circuit die ; a top part that is operable to be placed on top of said bottom part to form a cavity into which a plastic material can be injected to form the package , wherein the top part of the mold comprises a spring - loaded pin arrangement comprising a cover that covers a sensor area on the integrated circuit die and provides for an opening when the plastic material is injected .

the present invention relates to a drainage aid composition and its use in pulp washing process . more particulary , this invention relates to drainage aid composition of silicone polyethers prepared via zinc catalized dehydrogenative coupling of alcohol terminated polyethers with silicone oligomers and polymers comprising of at least one silicon bonded hydrogen . the compostion of this invention exhibit excellent drainage properties .

a microwave processing device / system can create strong temperature gradients in biodegradable polymer material . novel physical phenomena caused by the heated particles cause local changes in viscosity and flow , leading to high mass transport and current densities in activated polymer matrix materials and to dramatically shorter reaction times and solvent - free reaction conditions . advancements in the process speed and quality of packaging films in general can be achieved by increasing the polymeric amorphous to crystalline ratio , especially with regard to the claimed methods for manufacturing and sealing biodegradable packaging films . micron - size particles or nanoparticles in the processed materials can interact with microwaves of different frequencies and intensities to create intentionally varied local material property changes to create an tunable flexible packaging product that is sustainable and “ green .” related systems , apparatus , methods , and / or articles are also described .

the present invention relates to biofunctional polymeric substrates product comprising immobilized antibodies that selective bind to antigens namely autologous growth factors and an inflammatory molecule , uses and method of production . the bio - functional polymeric substrate can be used in a quantification method of antigens namely soluble growth factors , inflammatory molecules and hormones or the biofunctional polymeric substrate can be used to isolate extracellular vesicules . the biofunctional polymeric substrate can be also used in tissue engineering and regenerative medicine approaches , namely in bone and cartilage lesions , esophageal lesions , periodontal ligament reconstruction and skin lesions regeneration or treatment .