Datasets:

cwinkler

/

patents_green_plastics_10k

like 0

an injection molded thermoplastic closure for a container having a generally planar wall and an integrally molded push - in tab within the area of the wall . the push - in tab has its boundary formed by discontinuities in the closure wall and the discontinuities are hermetically closed with a sealant applied locally in an arcuate pattern by rotation of the closure relative to a sealant applicator . a hinge line of the push - in tab has a construction that improves hinge integrity .

the present disclosure is directed to polymer blends comprising a biopolymer and one or more impact modifiers , wherein at least one impact modifier is an ester of formula i : and to methods for increasing the impact resistance of a biopolymer with one or more impact modifiers , wherein at least one impact modifier is a ester of formula i . the polymer blends disclosed herein provide impact resistance , and are useful , for example , in the production of packaging materials , industrial products , durable goods , and the like .

the present disclosure relates to an apparatus for manufacturing a reclosure for a reclosable package or container , such as a plastic bag , wherein opening or closing the zipper causes an audible sound and a tactile feel . the apparatus includes a cutting wheel which is opposed to a pressure wheel . the cutting wheel includes cutting teeth spaced about its periphery . interlocked zipper material is engaged between the cutting wheel and the pressure wheel to form indentations in the interlocked zipper , thereby resulting in audible and tactile feedback when the zipper is operated .

a biodegradable nanocomposite and a method of forming a biodegradable nanocomposite are provided . in one aspect , the biodegradable nanocomposite includes a biodegradable polymer and a reinforcing agent substantially dispersed throughout the biodegradable polymer by rapid depressurization of a supercritical fluid . the biodegradable nanocomposite further includes a plurality of pores formed in the nanocomposite , the plurality of pores having an average pore size greater than about 100 μm .

an apparatus and method for sequentially molding a plurality of plastic articles within a single mold unit . a first mold section is provided with a runner system and a plurality of gates and a second mold section is provided with a plurality of recesses in operable alignment with the gates of the first mold section . when the second mold section is clamped into mating engagement with the first mold section , a plurality of discrete mold cavities are formed , each having at least one corresponding gate provided on the first mold section . a central processing unit signals an injection assembly as to the proper injection parameters for each discrete mold cavity . the central processing unit opens the gates sequentially , with each discrete mold cavity being filled according to its own set of injection parameters . by the present method , it is possible to mold a plurality of articles having different injection parameters , while using a single mold unit . the present method also makes it possible to mold the small articles without having to overfill the mold cavity , which could result in defective products or damage to the mold unit . because the present method can be used to mold a plurality of small sets of small articles , more precision can be obtained than with the prior art method of filling one large set of small articles .

the present invention discloses a biologically active basement membrane composition . when polymerized under physiogical conditions , the composition forms gel - like structures whose ultrastructure resembles interconnected thin sheets of the lamina densa zone of basement membrane . the major components of the composition include laminin , type iv collagen , heparan sulfate proteoglycan , entactin and nidogen . these components polymerize in constant proportions when redissolved and allowed to reconstitute . molecular sieve studies on the soluble extract demonstrate that laminin , entactin and nidogen are associated in a large but dissociable complex . the reconstituted matrix is biologically active and stimulates the growth and differentiation of a variety of cells , including epithelial cells , nerve cells , hair follicles and the like . the reconstituted matrix can also be used for determining metastatic potential of tumor cells and for isolating metastatic tumor cells .

a cohesive , non - flowable , plastic mass which is difficult to handle in bulk form is subjected to removal from a container and guided flow into a screw conveyor , compression in the conveyor , and controlled heat input and withdrawal while transported by the conveyor to facilitate ultimate extrusion .

a method and apparatus for forming a honeycomb structure in which a plurality of thermoplastic layers are fused together at selected locations . the thermoplastic layers at each of the selected locations are melted together to form a welded portion which includes first and second exterior surfaces . the welding of the thermoplastic layers is controlled so that no more than one of the exterior surfaces is melted . this partial melting of one layer prevents undesirable welding to adjacent layers . an apparatus for carrying out the method for welding thermoplastic honeycomb structures is also disclosed .

the formation of a cream and gel is described using a biopolymer , such as a polyhydroxyalkanoate , a polylactide , a polylactideglycolide and a polyglycoside , or a derivative thereof , in a latex form with the addition of a binder , which is generally an amphiphilic chemical entity . an hydrophobic domain of the amphiphilic chemical entity interacts with at least one biopolymer forming a water soluble complex , while the hydrophilic domain of the amphiphilic chemical entity maintains the soluble complex in suspension in an aqueous solution , which after proper heating becomes a gel or a cream . as a result , a versatile gel or cream is created with different compositions and textures that are obtained based on the nature of the binder used and the ratio of biopolymers and binder .

a protein crosslinker delivery device includes a body and a protein crosslinker held in a synthetic or natural biodegradable polymer . the body , a coating on the body , or an attachment to the body can contain the protein crosslinker holding biodegradable polymer . the release rate of the crosslinker and total amount of crosslinker released can be controlled by varying the concentration of the crosslinker and by varying the composition and structural characteristics of the degradable polymer . surface eroding , bulk eroding and naturally occurring biodegradable polymers can be used in conjunction with a variety of nontoxic or minimally - toxic protein crosslinking agents . the devices can be used to treat mechanically damaged , deformed , and nutritionally deficient connective or soft tissues such as the knee meniscus , the spinal disc , the cornea , ligaments and tendons , the soft palate , and skin .

a track - supporting roller assembly , according to the disclosure , for supporting a crawler track of a crawler chassis includes a bearing unit and a track - supporting roller rotatably coupled to the bearing unit . the track - supporting roller includes at least one supporting body made of plastic . the supporting body serves as a damper and prevents a metal - on - metal contact between track chain links of the crawler track and the track - supporting roller . the track - supporting roller assembly according to the disclosure ensures a reduced noise development in the crawler chassis . at the same time , it is possible to also reduce the wear of the track - supporting rollers to a considerable extent .

a stent or other endoprosthesis is provided from a single strand of biocompatible and resilient material into which spring coils are formed by winding the strand through in excess of 360 °. the thus - formed coil springs are positioned along outside edges of the endoprosthesis , with legs joining the coil springs in order to form a generally zig - zag structure . when the endoprosthesis is compressed for endoluminal delivery , the coil springs allow for large angular deflection between adjoining legs while avoiding plastic deformation of the coil or of the legs .

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

this invention describes a buoyancy aid that is pre - formed from a buoyant foam plastic material and has an pre - formed internal tube that is sealed . the internal tube and the pre - formed buoyant foam are all shaped to provide support for a users head , and is designed to keep the users head above water . the buoyancy aid has an external covering that is selected to prevent chafing the user , as well as being water and mold resistant . the buoyancy aid is so designed as to be comfortable to the user , and enhance the wearers use of the buoyancy aid .

three dimensional objects are formed by scanning a liquid thermosensitive resin with a laser beam causing imagewise heating of the resin . because thermosensitive compositions do not obey the law of linear superposition , the problem of stray exposure is eliminated allowing the thermal polymerization of any point within the volume of the liquid without affecting adjacent points .

a laser ablation method is utilized to define the channel length of an organic transistor . a substrate is coated with a deposition of a metal or conductive polymer deposition , applied in a thin layer in order to enhance the resolution that can be attained by laser ablation . the laser ablation method can be used in a roll - to - roll process , and achieves speeds , volumes , prices and resolutions that are adequate to produce printed electronic technologies .

the present invention pertains to a method for forming polyacrylic acid granules and granules formed therefrom wherein the granules are flowable , have an increased bulk density relative to the as polymerized polyacrylic acids , and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen . the granules formed by the method of the present invention can be used to prepare controlled release tablets , especially controlled release pharmaceutical tablets . the controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods .

a method for forming a plastic container in which a heated end product is introduced into a heated preform to expand the preform into at least partial conform with the cavity surfaces of a mold , thereby forming a resultant container , of a first size , with a heated end product . the resultant container is then capped and shrunk to a second size , which is less than the first size . the shrinkage of the reluctant container is greater than the shrinkage of the end product thereby creating a positive pressure within the capped container .

a relief print master is created by a printhead that moves in a slow scan direction . the nozzles of the printhead jet droplets of a polymerisable liquid on a rotating drum . the different nozzles jet droplets simultaneously on different layers that have different diameters . as a result , the droplets jetted by different nozzles travel over different distances before landing . the effect of this is that the droplets undergo different position lag as they land on the different layers . by rotating the printhead in a plane that includes the central axis of the rotating drum and a nozzle row this effect can be compensated for .

a hydrophilic separating carrier particle comprising a copolymerized hydrophilic monomer and hydrophilic crosslinkable monomer , and a process of producing thereof is disclosed .

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 .

a method of removing toxic compounds from water comprises the steps of providing a polymeric ligand exchanger having a chelating resin containing nitrogen electron donor atoms and a transition metal ion bonded with the nitrogen donor atoms on the surface of the chelating resin , and contacting water containing a toxic compound with the polymeric ligand exchanger to remove the toxic compound from the water . the preferred metal ion is a cupric ion , and the preferred toxic compound to be removed from water is arsenic . the method further includes the step of regenerating the polymeric ligand exchanger with brine and the step of treating the brine used to regenerate the polymeric ligand exchanger with iron chloride to remove arsenate therefrom so that the brine may be re - used in the system to reduce the overall volume of waste material .

a heat sealing wheel assembly of a shrink wrap machine reduces thermoplastic film waste during the side cutting and sealing process . the relative diameters of the heat wheel and heating hub of the heat sealing wheel assembly are configured to create an annular region towards the outer circumference of the heat wheel . this creates a space to permit closer engagement of the gripping mechanism for grasping and guiding the edge of thermoplastic film next to the point of contact of the opposing heat wheel edges , and avoids the obstruction normally caused by the heating hub . the closer gripping engagement reduces the amount of film that must extend out from the point of sealing contact of the heat wheels , resulting in less waste during the side sealing process .

a method of treating the surface of a rough , plastic object to produce a high gloss , textured and / or coloured finish . a rapid prototype treated according to the present method assumes the appearance of an injection molded part , without the usual high costs associated with producing the injection mold . in one embodiment , first step involves of removing the pores in the porous part , at least at the outer layers of the part , followed by a smoothening process of filling the voids between the miniature steps with a hardener to give a smooth surface , on which further post - processing may be performed .

a layer of the mixture that contains polymer and conductive particles is applied over a first surface , when the mixture has a first viscosity that allows the conductive particles to rearrange within the layer . an electric field is applied over the layer , so that a number of the conductive particles are aligned with the field and thereafter the viscosity of the layer is changed to a second , higher viscosity , in order to mechanically stabilise the layer . this leads to a stable layer with enhanced and anisotropic conductivity .

polyhydroxyalkanoates is an intracellular polymer that is biologically synthesized by microorganisms as carbon and energy reserve material . this biodegradable material has properties similar to petrochemical based thermoplastics . currently methods of pha extraction and purification from bacterial suspension use solvent or halogenated - based approaches which are costly and pose severe environmental damage . this invention describes a combined treatment of alkaline and homogenization for extracting and purifying pha , with higher pha purity and recovery .

the embodiments disclose means to inhibit the growth and migration of bacteria , mildew and fungus by applying various coatings which contain an inorganic anti - microbial agent onto metal , glass , and plastic substrates . the substrates are used in the manufacture of components for the interior of refrigerators and freezers , which include wire and glass shelving , plastic crisper baskets and other articles within the food storage area . the coatings include the inorganic anti - microbial agent combinet with a matrix resin which are applied by electrostatic powder coating , roller coating , or robotic spraying , and then cured .

a child &# 39 ; s ride - on vehicle including a molded plastic body member with a wheel - mounting assembly including a frame member . the wheel - mounting assembly is mountable to the body member with the frame member adjacent the body member . a tongue extends downwardly from the body member to be received by a pocket formed in the frame member so that the tongue fits into the pocket as the wheel - mounting assembly is mounted to the body member , with the tongue fitting closely within the pocket when the wheel - mounting assembly is mounted to the body member , the tongue and pocket thereby establishing alignment between the wheel - mounting assembly and the body member .

the invention is directed toward a universal self - sealing air extraction valve mounted to a self - closing plastic bag through which a pilot hole has been made . air is extracted from the bag through the valve and prevented from returning to the bag after extraction , at which time , the valve is sealed with a cap assembly .

a mounting system for supporting elongate , metallic structural members used in offshore applications and subject to dynamic forces comprising a support assembly having a socket that at least partially encircles the structural member , an attachment for securing the support assembly to a positioned structure , such as an offshore platform , and a sleeve received in the socket , the sleeve being disposed in surrounding relationship to the structural member and comprising an electrically nonconductive , fiber - reinforced polymer composite .

the shield can plate for a smd process in accordance with the present invention , includes : a metal conductive layer which is made of one selected from a group consisting of copper , zinc , nickel , silver , iron and chromium or an alloy thereof , or clad metal , performs an electromagnetic shielding function and maintains a physical structure when a shield can is constructed ; an insulating layer which is made of one or more of polyethylene terephthalate and polyethylene naphthalate , which are crystalline polymers , wherein the insulating layer is laminated on one side of the metal conductive layer ; and a silane - based coupling layer interposed between the metal conductive layer and the insulating layer .

a water purification apparatus comprising an injection molded floating non - toxic , biodegradable , and recyclable polymer planar structures that are easily stackable , shippable , and connectable to as many companion units as the user desires ; such apparatus further comprising many receiving structures made to accommodate plants without inhibiting them so that the user may create a film of plants over a toxic body of liquid for bioremediation purposes .

a blow - molding machine for producing blow - molded hollow bodies from a thermoplastic material , includes two blow - mold halves which can be horizontally displaced and provided with separate drive units for a transport drive and for the sequence of movements of the mold closing and locking device to open and close the blow mold halves . conventional blow - molding machines are still equipped with hydraulic drives at least for the mold closing and locking device . in order to provide a blow - molding machine that can for example be operated under clean - room conditions , the drive unit of the blow - molding machine according to the invention is configured for the clamping elements of the mold closing and locking device as an electromotive direct drive with a spindle drive and a spindle mechanism with recirculating rollers .

the invention relates to a method for the production of an adhesive and an adhesive kit for joining similar or different metal surfaces or ceramics , especially in the field of biomedicine . the objective of the invention is to avoid polymerization - linked by - products and disadvantageous effects , in addition to enabling a temporary biocompatible bond between metal and metal or metal and ceramics . the inventive method consist in using a monomer - free polymethylmethacrylate which is mixed with a suitable , non - toxic solvent and a bioactive vitreous - crystalline material with a particle size ranging from 0 . 05 – 20μ , consisting of 15 – 45 wt . % cao , 40 – 45 wt . % p 2 o 5 , 10 – 40 wt . % zro 2 and 0 . 7 – 3 . 5 wt . % fluoride , having apatite and calcium zircon phosphate as main crystal phases and a glass phase as an auxiliary component until a flowable mixture is obtained . the invention also relates to an adhesive kit consisting of said components . sufficient amounts of resistance are obtained for a temporary bond , enabling the bond to be neutralized when desired .

a vertebroplastic cementitious composition includes a solid phase including portland cement and a biocompatible additive which is a plasticizer and a hardening accelerant , wherein the amount of additive is between about 1 % and about 15 % by weight relative to the portland cement ; and an aqueous liquid phase , wherein the ratio of the solid phase to the liquid phase is between about 3 g / ml and about 6 g / ml . methods of forming such compositions , treatment methods using such compositions and cementitious implants including such compositions are also described .

the present invention is directed to a material and method for the stimulation of the production of cytokines . several polysaccharides , including polymers of different size of ⊕ 1 - 4 linked d - mannuronic acid , chitosan and cellulose oxidized in c - 6 position c60xy ) induce human monocytes to produce the cytokines . preferably , the molecular weights of poly - m and chitosan are above 50 , 000 and 20 , 000 respectively . pretreatment of the monocytes with ifn - γ increases the cytokine production from monocytes stimulated with all polysaccharides tested . the subject polysaccharides worked in vivo and in vitro . the present invention has therapeutic utility as vaccine adjuvants and components . therapeutic compositions comprising biologically active quantities of the compositions of the present invention may be employed to potentiate antibody production in response to vaccine antigens . anti - tumor , anti - bacteriological , anti - fungal and anti - viral effects may be expected .

a soundwall and components are described that incorporate a significant amount of plastic materials while still retaining the strength , durability and resiliency necessary for the soundwall to resist wind loads and weathering . an exemplary soundwall is described that is composed of prefabricated sound reducing modules anchored by support posts which are themselves constructed from a significant amount of plastics . the modules used in this exemplary wall are formed from an internal support frame which , in a preferred embodiment , is constructed from reinforced plastic lumber members . the support frame is covered by an outer sheath which , in alternative described embodiments , may be formed from reinforced plastic sheets or plastic lumber members . methods are also described for fabricating the individual modules , support frame and support members as well as the soundwall itself . soundwalls constructed in accordance with the present invention result in an unexpectedly great reduction in sound . the high plastic content of the soundwalls and their components permits greater amounts of recycled plastics rather than other materials to be used , thus providing environmental benefits as well .

method for determining the nucleotide base sequence of dna present in a lambda virus coat which is not replicable in a bacterial cell independent of any lambda dna within that coat . the method includes preparing a lambda phage preparation containing the dna , purifying the nucleic acid from the lambda phage to provide purified nucleic acid , and contacting that purified nucleic acid with a t7 - type gene 6 exonuclease to allow the exonuclease to remove at least a portion of one strand of the dna . the method further includes providing a primer able to hybridize with the other strand of the dna complementary to the portion of the one strand and contacting the primer with the other strand of dna in the presence of at least one deoxynucleoside triphosphate and at least one chain terminating agent and a dna polymerase , to allow the primer to be extended by the polymerase until extension is stopped by incorporation of the chain terminating agent .

a method for preparing a biodegradable polymeric micellar composition using liquid polyethylene glycol as a phase separation medium . the present invention also provides an efficient method to effectively incorporate a hydrophobic drug into a polymeric micelle in a polyethylene glycol separating medium .

a seat for use in an aircraft providing improved user lumbar load characteristics during a crash event , the seat having a pair of spaced apart front and rear legs , the front and rear legs each being formed of a metallic curved beam having high plastic and low elastic deformation characteristics . first and second chair beams are connected between the front and rear legs . a seat pan is supported between the chair beams , the seat pan being configured to plastically and telescopically deform downwardly between the front and rear legs during a crash event . an energy absorbing seat cushion is positioned on the seat pan . drag links limit the forward displacement of the front legs upper ends and thereby the seat pan during a crash event . the plasticity of the chair legs , the seat pan and the seat cushion being selected such that in the event of a crash a substantial portion of the load that would otherwise be imparted to a passenger &# 39 ; s lower back is absorbed .

a system and method for separating free oil from industrial coolant comprises directing said fee oil and coolant through a coalescing cartridge having a plurality of polymeric elements therein into a tank having a plurality of settling chambers . free oil is removed from the coolant through oleophilic attraction between the free oil and the surface of the polymeric elements . free oil remaining in the coolant is further separated from therefrom through gravitational separation . a plurality of weirs and baffles interposed between the settling chambers provide continuous return of purified coolant to the system and periodic decanting of separated free oil .

a method for separating undesired particles from a gaseous medium in which the particles are dispersed . the particles and gaseous medium are passed through a fluid - pervious filtration media which has been infused with an absorbtion composition comprising a homogeneous thermal reaction product of an oil component selected from the group consisting of glycerides , fatty acids , alkenes , and alkynes , and a methacrylate or acrylate polymer component . the particles are thereby immobilized at the media . the purified gaseous medium having passed through the filtration media is collected and flowed to a utilization or discharge point .

the present invention provides a barrel venting system for use on an extruder . gases that are generated during plasticizing are drawn by vacuum through a filter to remove plastic particles before the gas is exhausted to the atmosphere . to enable cleaning of the filter without interrupting extruder operation , a shuttle valve is provided to allow rapid switching of the gas flow to a second filter . the valve itself includes two disc shaped elements with ports that align in two positions to enable flow to either the first or second filter , as desired .

the present invention concerns treated fibrous porous material having a defined nanostructure comprising reactive sites thereon , wherein said fibrous porous material is treated with a low viscosity organic solution comprising cca1 . the treated fibrous porous material is further mixed with a resin to form a composite . the composite may be formed by various methods of mixing and molding . the invention is further directed to various composites made therefrom . the fibrous porous material is selected from the group comprising cellulose , lignin , synthetic ceramics , porous metal nanopowders , kaolin , bio fibers and porous powders of biological origin or their mixtures . the resin may be any polymer obtained from industrial or domestic waste , and is selected from the group comprising polyethylene and copolymers thereof , polypropylene and copolymers thereof , polystyrene and copolymers thereof , polycarbonate , silicones and copolymers thereof , polybutylene or polyethyleneterphthalate , polyurethane , epoxy , unsaturated polyesters , vinyl esters and ethers , acrylic resins and copolymers thereof , polyamides , phenolics , amino resins , alkyds , polyimides , polyethers , polyvinyl chloride and copolymers thereof , nylon or mixtures thereof .

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 .

an improved dental adhesive device to hold prosthetic devices in the human mouth is made as a laminate of webs which are bonded together by deforming a film of thermoplastic ethylene oxide polymer . the dental adhesive is produced by continuously applying a film of thermoplastic ethylene oxide polymer between moving webs of cellulose acetate fibers and then passing said webs in superimposed relationship between a pair of dry heated calendar rolls for thermoplastically bonding said webs into a unitary structure . a dry water - activated adhesive material , such as sodium alginate , may be employed with the thermoplastic ethylene oxide polymer by being dissolved or dispersed in the polymer film . synthetic fibers are applied to the webs so as to extend transversely through the webs .

an apparatus and method to adjust the dimensions of thermoplastic components following passage of the component through final processing in a fixture . the invention particularly relates to an apparatus for maintaining product tolerances on thermoplastic components that have undergone post - form extrusion . in addition , the invention relates to a method for maintaining product tolerances on post - form extruded thermoplastic materials .

concentrated alkali metal hydroxide substantially free of alkali metal halide and other impurities is produced by the electrolysis of an alkali metal halide solution in an electrolytic cell having a dimensionally stable anode and a metal cathode separated by an electrically conductive stable selectively permeable hydrated cation ion - exchange membrane film of a fluorinated copolymer having pendant sulfonic acid groups or derivatives of such groups . the membrane film is capable of use at high temperatures and under severely corrosive chemical conditions for extended periods without degradation .

an electrode mask for electrowinning a metal is provided . an example technique forms openings in a solid nonconductive sheet , such as vinyl , polyvinyl chloride , or other plastic and adheres the sheet as a solid to a cathode surface as a mask . the mask protects the cathode surface from electrical interaction with an electrolyte , while the openings allow controlled electrodeposition of a metal in harvestable rounds , which can be stripped from the cathode . the electrode mask is reusable , and easily removed for recycling and replacement . a matrix design engine calculates pattern and sizes for the openings in the mask to optimize electrodeposition of the metal based on multiple parameters including the metal to be deposited , ions present in an electrolyte , electrolyte concentration , ph level , voltage , electrical current density , solution temperature , electrode temperature , or plating time .

a furan polymer impregnated wood which is uniform in colour and density throughout the treated zone . in order to obtain the polymer impregnated wood , a parent wood has been impregnated with a mixture containing polymerizable organic compounds of at least furfuryl alcohol and one further compound . the invention also relates to a method for preparing a furan polymer impregnated wood and uses thereof .

the present invention provides a dispenser which can inspect and manufacture a biochip by attaching various kinds of liquid samples accurately and at a high speed . the dispenser comprises liquid discharge means for discharging liquid and identification information holding means for holding , in a readable manner , the identification information for identifying liquid . according to this configuration , the liquid to be discharged from the dispenser can be identified by recognizing identification information . the micro - dispensers , in particular , which are used for the inspection and manufacture of biochips frequently use various kinds of polymer material all at once . if the present invention is applied here , liquid of the respective micro - dispensers can be identified before discharge , so the correct liquid can be discharged in a reliable and accurate manner .

provided are a hybrid of a poorly soluble basic drug and a layered silicate , including a water - soluble basic polymer , and a method of preparing the same . the water - soluble basic polymer may be an aminoalkylmethacrylate copolymer methacrylate , and methyl methacrylate , degussa ) or polyvinylacetal diethylaminoacetate . in an oral formulation including the hybrid , a short - term dissolution of the poorly soluble drug can be increased to 90 %, thereby increasing drug bioavailability .

to provide a foamed plastic provided with holes having a specified area at a specified aperture ratio . the holes are either a through - hole or a non - through - hole and properly provided . the foamed plastic is superior in sound absorbing property and has a strength . in the case of non - through - holes , the foamed plastic can beep a sound absorbing effect as well as a sound intercepting effect , and for example , when used as a cushioning material of collision to be used as the lower portion of a dash panel of a motorear , not only the cushioning of collision but also the absorption of noises from an engine can be achieved . on the other hand , a foamed plastic obtained by pre - foaming foamable beads and again foaming the pre - foamed beads is a foamed plastic having gas permeability , which is different from usual foamed plastics . in this case , when an air current resistance value is set within a specified range , an audible sound of a human being can be most effectively absorbed . thus , the latter foamed plastic can also be used as a cushioning material of collision and the like similar to the former foamed plastic .

the plastic substrate portion of the part is formed by a first injection of plastic into a mold , so as to adhere to an overlying sheet of coverstock material . a portion of the coverstock is not initially adhered to the substrate . a second injection of plastic forms the undecorated portion of the part , and bonds to the substrate portion to form a unitary plastic panel . in the course of contacting the substrate portion , the plastic from the second injection folds and hides the non - adhered portion of the cover stock , thereby forming a neat , clean split line .

a selective high intensity ultrasonic foaming technique is described to fabricate porous polymers for biomedical applications . process variables , including ultrasound power , scanning speed , and gas concentration have an affect on pore size . pore size can be controlled with the scanning speed of the ultrasound insonation and interconnected porous structures could be obtained using a partially saturated polymers . a gas concentration range of 3 - 5 % by weight creates interconnected open - celled porous structures . the selective high intensity ultrasonic foaming method can be used on biocompatible polymers so as not to introduce any organic solvents . the method has use in cell related biomedical applications such as studying cell growth behaviors by providing a porous environment with varying topological features .

bottle for a cosmetic product containing a volatile solvent , especially for mascara , comprising an opening and a rigid side wall produced as a plastic molding having an inside lateral surface in contact with said cosmetic product and an outside lateral surface to which a label is affixed , said label having barrier properties with regard to the volatile solvent . this label advantageously covers the entire outside lateral surface .

disclosed herein is a method and apparatus for forming corrugated cartons with plastic bag liners therein from conventional flat unformed cartons . the apparatus is comprised of an assembly for spreading the forward flaps of the cartons and pressing the flaps back onto the sides of the cartons ; conveyor systems for continually bringing a carton and bag liner together such that the forward folded flaps of the carton are disposed within the bag ; and a forming station where the cartons are opened into a rectangular configuration and a bag , a portion of which is disposed about and held by the folded flaps of the carton , is forced back through the carton whereupon the bottom flaps of the carton are folded into the closed position and sealed , thereby continually forming open ended corrugated cartons having plastic bag liners disposed about the interiors thereof .

a module for a modular conveyor belt , is described . the module is of a sandwich layer construction having a core polymeric material completely surrounded by a skin polymeric material . the skin material includes an antimicrobial material for inhibiting bacterial growth on the module , and the conveyor belt is particularly useful for conveying and transporting foods including food processing and food handling applications .

a process for producing hydroxyalkanoate copolymers , which comprises : pre - treating a sucrose - containing feedstock in an acidic solution ; feeding the pre - treated feedstock into a bioreactor containing polyhydroxyalkanoate producing microbial cells ; cultivating the polyhydroxyalkanoate producing microbial cells to form a cell mass containing the hydroxyalkanoate copolymers ; recoverying the hydroxyalkanoate copolymers from the cell mass . the pre - treating step has the main function of hydrolyzing sucrose into glucose and fructose , which in turn are converted into 4 - ketovaleric acid to give a mixture of mono - saccharides and organic precursors for microbial synthesis of hydroxyalkanoate copolymers , and particularly of phbvv ter - polymers . complex and expensive purification processes of the substrates obtained from the pre - treating step are not needed . the solutions can be directly used as the feeding solutions for microbial pha biosynthesis .

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

articles constructed of a plurality of scuffed sheets have improved sheet - to - sheet bond strength and surfaces with high coefficients of friction . articles constructed out of three scuffed sheets include exterior intumescent polymeric surfaces resisting the spread of combustion flames and insulating the interior surfaces from the high temperature of fire . articles include electronic apparatus sending an emergency 911 call to a remote monitoring station . articles are advantageously reinforced with optional rigidifying structures without article modification . members are joined with snap together features providing an assembled article . articles include handles for ergonomic manipulation by workers . articles include elements amenably receiving unitization accessories . the article improvements are demonstrated in the form of industrial platforms , particularly material handling pallets .

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

a visor includes a polymeric core divided in halves in a clamshell - type configuration in which adjacent the hinged junction of each half there is provided a slot extending inwardly from an edge of the core to define a clip recess . the core includes an aperture extending inwardly from one end of the core and spanning across opposite sides of the edges of the clip recess for receiving and holding a pin inserted from an end of the core . the pin is inserted while a cylindrical roller sleeve is positioned in the recess to hold the sleeve in the recess .

there is disclosed a printing apparatus for printing on tags and labels . the apparatus includes a compact housing which is comprised essentially of plastics material . the housing includes a self - storing sliding cover , end plates and a base forming track structure for the cover , and a shelf for mounting a thermal printing mechanism . the printing mechanism is a compact module that is suitably secured in the housing . the printing mechanism includes structure for maintaining tension in a label - carrying web , for adjusting the orientation of the printing mechanism &# 39 ; s thermal print head , and for applying controlled rewinding .

the present invention relates to the production of a biocompatible and biodegradable polymer membrane comprising the steps of : a ) mixing a polymer selected from the group consisting of polylactic acid , polyglycolic acid and polylactide - co - glycolide with a pharmaceutically acceptable surfactant ; b ) emulsifying an hemoglobin solution in the mixed solution of step a ) to form particles of polymer membrane containing hemoglobin ; c ) solidifying the particles of step b ) by adding cyclohexane ; d ) separating the solidified particles of step c ) by centrifugation ; and e ) suspending the particles of step d ) in a saline solution . in addition another approach uses alcohol - acetone . the biocompatible and biodegradable polymer membrane in accordance with the present invention contains from about 25 to 35 % by weight of hemoglobin and has an average diameter from about 0 . 07 to 1 . 1μ , preferably a submicron diameter of less than 0 . 2μ .

the present invention relates to controlled release formulation of dronedarone or pharmaceutically acceptable salts , esters , metabolites , prodrugs or enantiomers thereof and controlled release polymers . the use of controlled release formulations of dronedarone would improve the bioavailability and the patient compliance with reduction in number of dosages to be taken per day .

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 method for stowage of cargo items . in a cargo container wherein spaces around the cargo items and within the cargo container are at least partly filled with spacer elements so as to substantially prevent movement of the cargo items in the cargo container , characterized in that dynamic forces on the cargo items associated with motion of the cargo container and / or weight forces on the cargo items are transmitted to the container structure through the spacer elements , and wherein at least one spacer element transmitting such forces comprises a shaped block of expanded plastics foam material , preferably polystyrene . the invention is applicable to comparatively heavy loads such as those transported in shipping containers and in such land vehicles as rail cars and road transport vehicles .

the invention relates to a system for manufacturing medical pouches and a method for manufacturing medical pouches in a system , said pouch being made from two layers of plastic film and at least one component per pouch , the system comprising a group of positioning aids for the components as well as a group of supports for the positioning aids , the positioning aids being supported on the supports which are conveyed in an endless path with the aid of a guiding mechanism , the system further comprising a component application station designed to bring a component , which has been introduced into the station by a positioning aid with the aid of a support , into a joining connection with the plastic film . the invention is characterized in that on the endless path , the supports are alternately guided first along a process run and then along a return run ; the supports are placed at a certain distance from one another in the process run , are accelerated to increase the distance therebetween when the supports travel along the return run , and are decelerated to reduce the distance therebetween again when the supports intermittently travel along the process run . as a result , the system requires fewer product - specific parts .

a dispenser pump e . g . for toothpaste has a plunger connected to a proximal end of an elongate flexible plastics strip which is run slidably along a guide track built into the discharge nozzle of the pump alongside the discharge channel . the distal end of the guide track defines a bend which opens through a lateral slot into the discharge channel just inside its external opening . action of the plunger causes the strip to slide back and forth along the track and round the bend , so that the tip of the strip is moved out of the mouth of the nozzle during dispensing but returns to block it and cut away residual product when the plunger is released .

process and apparatus for electrostatically pinning a dielectric film to a moving surface which is electrically conducting and connected to a grounded fixed potential comprising a corona wire fed with a direct current and a semi - cylindrical metal counter - electrode connected to a potential which is approximately equal to the potential of the moving surface . when extruding a molten mass of polymer onto a cooling surface , a substantial increase in the speed of application is observed . the best results are obtained when the radius of the counter - electrode is approximately equal to the distance between the corona wire and the moving surface .

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

the shelf life of fresh harvest produce is extended by coating the exterior surface of freshly harvested produce with a coating composition comprising an aqueous emulsion of polyvinylidene chloride copolymers containing from about 0 . 25 to 25 % by weight of copolymer solids to water and between 0 . 001 and 20 % plasticizer preferably a polyethylene oxide based additive such as triton - x to weight of copolymer solids in the emulsion . the coating may also contain biocides as well to control bacteria and fungal growth an the post harvest produce during storage , shipping , distribution , and sale of the product . the coating composition is effective in extending the shelf life of produce .

in a process for producing a high impact styrene resin by continuously polymerizing a styrene monomer in bulk in the presence of a rubbery polymer , the improvement wherein a polymerization line is used which is comprised of an initial - stage polymerization line following a material feed line and consisting of one or more tubular reactors having fixedly set therein a plurality of mixing elements having no moving parts , a main polymerization line following the initial - stage polymerization line and consisting of one or more tubular reactors having fixedly set therein a plurality of mixing elements having no moving parts , and a recycle line which branches between the initial - stage polymerization line and the main polymerization line and returns to the initial - stage polymerization line , and a minor part or a major part of a flow of the initial - stage polymer solution leaving the initial - stage polymerization line is recycled through the recycle line while the remaining non - recycled initial - stage polymer flow is polymerized in the main polymerization line .

in a combination coating film transfer tool and ball - point pen , the transfer tool comprises a case , and a replacement cassette comprising supply and take - up reels and a transfer head . the cassette fits tightly , but removably , in the case , with the tip of the transfer head projecting from the case . the cassette is replaced from time to time , but the case can be reused . consequently waste of plastic is reduced , and the replacement units can be manufactured less expensively .

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 composite molecular active substance group for use in restitutive chemotherapy against viral infections , which is produced by the process comprising : preparing lignin units by carrying out an extraction in an aqueous media under weakly acidic or alkaline conditions of wood or wood - like materials and / or plant - cell cultures and separating - off the resultant insoluble solids ; preparing lignoid units by carrying out an aqueous alkaline extraction at a ph of 7 to 14 of starting materials selected from the group consisting of wood - incarbonization products and bioconverted wood - like materials and separating - off the resultant alkali - insoluble solids ; and preparing a water - soluble mixed polymer by reacting the lignin units from step with the lignoid units from step , under aqueous alkaline isolating by ultrafiltration a low molecular weight fraction having a molecular weight of no more than 3000 daltons of the mixed polymer , taking a cut between 15 to 40 kilodaltons and discarding the resultant residue , and treating the resultant solution with an h + cation exchanger at a ph of 3 to 7 and then carrying out further processing .

this invention is related to the use of polyurethane based polymer as a drug delivery device to deliver biologically active compounds at a constant rate for an extended period of time and methods of manufactures thereof . the device is very biocompatible and biostable , and is useful as an implant in patients for the delivery of appropriate bioactive substances to tissues or organs . the drug delivery device for releasing one or more drugs at controlled rates for an extended period of time to produce local or systemic pharmacological effects comprises : 1 . a reservoir , said reservoir comprising ; 2 . at least one active ingredient ; and , optionally , 3 . at least one pharmaceutically acceptable carrier ; a polyurethane based polymer completely surrounding the reservoir .

an apparatus and method for filling a defined space , such as an annulus around a production tubular within a wellbore , includes a compliant porous material . the compliant porous material can be compressed and maintained in a compressed state by incorporation of a deployment modifier , which may be a water - soluble or oil - soluble adhesive or biopolymer , used as an impregnant , a coating , or a casing . the production tubular can be positioned at a desired location and the compliant porous material exposed to a deployment modifier neutralizing agent , which then dissolves or otherwise prevents the deployment modifier from continuing to inhibit deployment . thus , deployment can be delayed to an optimum time by preventing exposure of the deployment modifier to the deployment modifier neutralizing agent . it is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure . it is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims . 37 cfr 1 . 72

the development of a series of fluorescent materials including heterocycle - functionalized luminogens with aggregation - induced / enhanced emission , long wavelength emission , and high solid state fluorescence quantum efficiency is contemplated . the described fluorescent materials are promising candidates in selective luminescence - based chemosensor for hg 2 + or atp , fluorescent staining for mitochondria in living cells with high photostability , stimuli - responsive luminescent materials , and materials for optical waveguides . in addition , these heterocycle - functionalized luminogens are particularly useful as fluorescent labels for biopolymers such as peptides , antibodies , or nucleic acids , making them useful as aie - active biocompatible probes for clinical cancer imaging and diagnostics .

a process for producing polymer - supported metal nanoparticles involves confinement of metal nanoparticles in polymeric nanotubes or nanosheets in an aqueous environment using hydrophobic reactants . metal nanoparticles supported in the polymeric nanotubes or nanosheets are substantially monodisperse and have an average particle size of 4 nm or less . the polymer - supported metal nanoparticles are useful in fuel cells , sensors , bioanalysis , biological labeling or semi - conductors , especially as catalysts .

a conductive composition for a biological electrode is capable of reducing the impedance between the electrode and the skin . a conductive gel composition for a biological electrode which is capable of electrically and physically connecting a living body to an electrode element and is composed of at least the following components : a radical - polymerizable unsaturated compound ; a moisturizer serving as a plasticizer and functioning to supplementing and promoting the physiological humidifying function of the horny layer ; a polymerization initiator ; and a crosslinking agent . this moisturizer serves also as a plasticizer and , furthermore , elevates the moisture content in the horny layer at the application of this composition . the above - mentioned composition may further contain a plasticizer selected from among polyhydric alcohols , amines and ethers .

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

the present invention relates to an improved method for reclaiming and recycling developing solvents used in the production of flexographic printing plates . more specifically , the invention relates to reclaiming and / or recycling of the developing solvent through centrifugation and / or filtration . the reclaiming process can be continuous or batch . the process involves transferring the contaminated solvent , from a plate processor or a dirty holding tank , to a centrifuge and / or filter , and centrifuging and / or filtering the contaminated solvent to remove the polymer . the reclaimed solvent can be transfer directly back to the plate processor or to a clean holding tank .

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

tools and methods for making molded an optical integrated circuit including one or more waveguides are disclosed . in one embodiment , a molding die is provided that includes a substrate that has a topographically patterned first surface . a conformal protective film is provided over the first surface of the substrate . the substrate may be formed of silicon or gallium arsenide , and may be patterned using conventional semiconductor patterning techniques , such as plasma etching . the protective film may be metal , diamond , or some other hard material . typically , a plurality of such molding dies are formed from a wafer of the substrate material . the die is pressed into a moldable material , such as thermal plastic , to form the wave guide of the optical integrated circuit . a plurality of the dies may be mounted around the curved surface of a heated roller , and a heated tape of the waveguide material may be fed under the roller in a mass production process . alternatively , the die may be mounted in an injection molding cavity , and the ioc may be formed by an injection molding process .

environmentally friendly biopolymer adhesives are described , wherein the adhesives comprise biopolymer particles , more preferably starch microparticles , and most preferably starch nanoparticles , and their aqueous dispersions . applications for the biopolymer particle adhesives are described , that are environmentally friendly alternatives to petroleum based synthetic adhesives . the biopolymer particle adhesives provide are biodegradable as well as repulpable , and thus provide bio - based recycling - friendly alternatives to synthetic adhesives derived from petroleum resources .

a filling for a percolating filter for biological purification of waste water includes a plurality of flexible , irregularly touching , randomly arranged plastic strips up to 8 cm in width and several meters in length twisted together and suspended from a support over the height of the filter tank . the strips may have a maximum thickness of 30 - 100 μm and a minimum thickness of 10 - 60 μm , varying in such thicknesses over their width . the strips may be residue edge portion cuttings severed from the production of continuously produced sheet materials .

a novel bag for holding , transporting , and pouring a bulk product is provided . the bag comprises two handles , with one handle being primarily configured for carrying , and the other being primarily configured for pouring . the handles are positioned on adjacent sides of the bag , with the pouring handle being positioned near the bottom half of the bag to facilitate a controlled tilting of the bag . in one embodiment , the bag also includes a third handle on the same side of the bag as the pouring handle . the bag is typically formed of plastic , and can be used for salt , animal food , and other pourable products . the bag has a very high strength , with the second handle being particularly strong as a result of a longitudinal seam positioned adjacent that handle .

a molded plastic bathroom organizer fixture has a core body formed of a relatively rigid first plastic material and an outer body covering outer surface portions of the core body and formed of an elastomeric material overmolded on the core body and providing improved gripping of supported articles and frictional surfaces to enhance grasping by a user . the fixture is mountable on a wall surface by one or more such cups , which may be unitary with the outer body or may form part of a separate mounting structure engageable with the fixture in either pivoting or longitudinally sliding relationship therewith . the outer body may be light - transmitting to permit viewing therethrough of the core body , which may be formed of a visually distinguishable material . portions of the outer surface of the core body may remain exposed . each suction cup is oval and oriented with its long axis vertical or nearly vertical in use . a number of different embodiments are disclosed .

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

the invention relates to a process for bonding a silicone or silicone based material to a polyurethane and use of the bonded silicone - polyurethane in the manufacture of biomaterials , devices , articles or implants , in particular long term implantable medical devices in the fields of cardiology , orthopaedics , plastic surgery and gastroenterology . the process involves the steps of flame treating a surface of the silicone or silicone based material and bonding the polyurethane to the flame treated surface of the silicone or silicone based material .

acetal copolymers of trioxane and 1 , 3 - dioxep - 5 - ene having a high degree of crystallinity and specific mole percent incorporations of 1 , 3 - dioxep - 5 - ene are synthesized . the invention also provides a process for producing highly crystalline acetal copolymers by copolymerizing triozane and 1 , 3 - dioxep - 5 - ene and precipitating the copolymer product from solution . the copolymers show much improved stability against halogen degradation .

a method for recycling comprises a pulverization step of pulverizing thermoplastic resin molded articles , each having a different softening point in a resin substrate and having a metal part and a coupling film , a metal - material selection - removal step of selecting and removing a metal material from pulverized pieces , a pulverized resin - material selection step of selecting a target pulverized resin material for recycling by allowing the pulverized pieces from which the pulverized metal material has been removed to drop and by ejecting gas towards either one of the target pulverized resin material and a non - target pulverized resin material for changing a drop direction thereof , and a coating - film peeling step of peeling the coating film from the resin substrate by applying a shearing force to the target pulverized resin material under the softening point of the resin substrate of the target pulverized resin material for recycling .

a one - piece plastic disposable razor having structure which insures safe and efficient blade geometry while lending itself to high - speed mass production methods .

a process utilizing pet as a reactive constituent to manufacture other polymers containing the pre - condensed moieties by the rapid transesterification of the condensation polymer with a pre - made modifying polymer containing the desired mix of other monomers . the process involves as a first step the manufacture of a modifying polymer containing the desired mix of acids and alcohols to a specific molecular weight such molecular weight dependent on the desired final level of utilized condensation polymer and the finished molecular weight . the second step of the process involves the rapid buildup of molecular weight and / or polymer uniformity by the rapid transesterification of the condensation polymer with the modifying polymer . the second step can be performed in any suitable vessel including an extrusion line . the process has the advantage of greatly reduced cycle times over other condensation polymer utilization processes such as the recycling of pet into other materials .

a distribution head having an inlet for accepting a stream of fluid plastic and an outlet for discharging the stream , two pairs of discrete channels in the distribution head extending from the input to the output for splitting the streams into corresponding discrete substreams , selected ones of the channels being of predetermined different lengths to provide lateral mixing of the stream as it passes through the head . the invention also includes a combination of the distribution head and a connected extrusion tool and the process of making homogeneous plastic articles , particularly pipes .

the coating for absorbing energy , especially the energy of electromagnetic and mechanical waves , is applicable in electrical and electronic devices and inside buildings . the coating has a substrate in the form of metal sheet or polymer plate , on which at least one absorber layer is applied . the absorber layer is in the form of loose or compressed powder grains , pellets , beads or gel , on which a polymer layer is placed . the coating absorbs energy .

a biopolymer - bioengineered human corneal endothelial cell sheet construct for reconstructing corneal endothelium in a patient is recited . the construct includes a biopolymer carrier which is bioresorable and deformable ; and a bioengineered cell sheet containing a monolayer of interconnected hcecs with substantially uniform orientation . the bioengineered cell sheet is attached to a surface of the biopolymer carrier with apical surfaces of the hcecs facing said carrier .

a device for extracting plastic risers from fittings such as polyvinyl - chloride water sprinkler pipes . the device has at least two gripping edges for gripping the inner surface of the threaded fitting . at least one of the gripping edges has a plurality of serrations formed along its extremity .