Abstract: An intraluminal vascular graft in the form of a tube of porous expanded polytetrafluoroethylene film wherein the porous polytetrafluoroethylene film has a microstructure containing a multiplicity of fibrils oriented substantially parallel to each other. The tube has a wall thickness of less than about 0.25 mm and is made from at least one first layer and at least one second layer of porous polytetrafluoroethylene film, wherein the fibrils of the first and second layers are oriented substantially perpendicular to each other. Preferably the fibrils of the at least one first layer are oriented substantially parallel to the longitudinal axis of the tube and the fibrils of the at least one second layer of porous polytetrafluoroethylene film are oriented substantially circumferential to the tube. The first and second layers may be inner and outer layers respectively, or alternatively their relationship may be reversed.

Abstract: Ethylene polymers having a) a Polydispersity Index of about 2 to about 4; b) a melt index, MI, and Relaxation Spectrum Index, RSI, such that (RSI)(MI.sup.0.6) is about 2.5 to about 6.5; c) a Crystallizable Chain Length Distribution Index, L.sub.w /L.sub.n, of about 1.0 to about 9; and d) a density, .rho., and a percent haze when fabricated into films such that the percent haze is less than 370.rho.-330, are provided. These ethylene polymers advantageously combine superior clarity and toughness with low extractables and enhanced processing ease.

Abstract: To provide various members such as filter cloth for dust collection which assures small pressure loss and easy shaking down of dust particles and is excellent in friction property and mechanical strength, sliding member excellent in sliding property, water repellent member excellent in water repellency, non-sticking member excellent in non-sticking property and member for supplying mold releasing agent in electrophotographic apparatuses which is excellent in air permeability, heat resistance and oil resistance, and provide a multilayered felt used therefor and a process for producing the multilayered felt. The multilayered felt is obtained by placing a layer of a web comprising polytetrafluoroethylene staple fibers on at least one surface of a felt and then joining the polytetrafluoroethylene staple fibers and fibers which form the felt by intermingling through water jet needling and/or needle punching.

Abstract: An article forming system for forming at least one sheet of material into an article, such as a decorative flower pot cover for example, and a novel article formed utilizing such a system. The article forming system includes a male die, a female die and a platform having a support surface and an opening extending through the support surface. The female die is disposed generally within the opening in the platform with the upper end of the female die being disposed near the support surface. The article forming system includes means for slidingly holding portions of the sheet of material generally against portions of the support surface while permitting such held portions to slide on the support surface during the forming of the article for cooperating in forming a decorative border on the decorative flower pot cover type of article which flares generally away from the flower pot object when the decorative flower pot cover article is applied to the flower pot.

Abstract: The present invention provides a non-PVC, non-DEHP material that can be used for medical grade tubing. Additionally, the present invention provides medical grade tubing made from such a material.

Abstract: The invention relates to a molded tip on tubing and a method of making the same. The molded tip is molded on the tubing in a mold cavity and is for use in a stent delivery device, guide catheter, or angiographic catheter.

Abstract: A fuser member which comprises a base member, a silicone elastomer cushion layer, a vinyl- and hydride-containing silane adhesive layer, and a fluoroelastomer layer.

Abstract: A plurality of water- and oil-porous sacks are partially filled with a number of generally toroidal bodies of a polymer material that entraps oil and including mesh fragments scattered throughout the bodies. Each sack is sewn with a perimeter stiffening ring, to retain a flat profile, and has a netting that closes to help inhibit outflow of the oil when the sack is retrieved. When deployed from ship or by air onto a spill, the sacks spread into a pancake shape and the polymer matter forms a single layer that retains the oil. The inventive sacks will float indefinitely without releasing the oil or allowing it to emulsify, so the oil can remain in place until collection efforts are feasible. The sacks can be burned in situ, or standard fishing boats or specialized collection boats can be used to retrieve the sacks, and the collected material can be burned to capture the energy content of the oil or processed to separate the oil from the polymer.

Abstract: The present invention relates to a method for hollow injection molding. More particularly, it concerns a method for hollow injection molding a shaft-unified type resin rotator with excellent productivity. The molded article obtained by the present invention is excellent in dimensional accuracy, strength, surface appearance and recyclability of materials.

Abstract: A glass substrate having fine holes formed therein by use of a laser beam without cracks or fragmentation occurring. A glass substrate is used in which silver is contained in the form Ag atoms, Ag colloid or Ag ions, to a predetermined depth from a surface of the glass, and further the concentration gradient of the silver is a maximum at one side surface on which the fine hole machining is performed and gradually decreases toward the other side surface, whereby ablation and evaporation occurs from the surface having the maximum concentration of silver layer by layer without causing cracking or fragmentation.

Abstract: A container for holding a floral grouping. The container, most generally a vase, is formed from a sheet of material and has an outer peripheral wall which extends from the closed lower end to the open upper end. The peripheral wall may comprise a plurality of folds in the sheet of material with adjacent portions of at least some of the folds, which connected via a bonding material to form connected folds, which connected folds cooperate to maintain the vase in the shape of a vase. The container preferably has a bonding material disposed on a portion of the surface of the vase for enabling the vase to be bondingly connected to a surface in a vertical orientation.

Abstract: A simulated rock and a method of producing it, using Portland Cement, Bentonite or lime, polystyrene, and water. Ground polystyrene is mixed with cement, Bentonite or lime, and water, to form a settable cement formulation which is poured into removable forms. Reinforcing members are included in the mold, and a lifting hook is provided for later lifting and transporting of the resultant simulated rock. One or more base coats can be applied using a different formula, and a color coat can be applied. The method is use for making landscaping rocks, rock fountains, stone barbecues, light pillars, planters, room dividers, artificial masonry panels, and any structure which uses rocks or masonry.

Abstract: A method of producing laminated inflatable, substantially inextensible expander members having composite properties enhancing their use on intravascular catheters, such as angioplasty catheters is described. Diverse polymeric compounds of differing properties are coextruded to create a multilayer parison. The parison is subsequently drawn and expanded in a blow molding operation to yield an expander member exhibiting enhanced properties including lubricity, burst-strength, limited radial expansion, bondability, and rupture characteristics.

Abstract: Apparatus for unit cavity and multi-cavity, multi-layer injection molding and injection blow molding machines are provided, which in preferred embodiments, include:co-injection nozzle means including multi-polymer co-injection nozzles comprising an assembly of shells, and having fixed, tapered passageways communicating with annular orifices close to the nozzle gate and to each other, and polymer flow balancing and directing means in the passageways in the form of concentric and eccentric chokes;valve means for each co-injection nozzle, operative in the nozzle central channel to and adapted to be moved to different positions to block and unblock the nozzle orifices, and, in each nozzle to controls the initiation, flow and termination of flow of a plurality of polymer flow streams, comprised of an elongated sleeve having an axial central passageway and a port in its side wall and axially-reciprocable within the nozzle central channel, and, either a solid pin within and fixed relative to the sleeve, or, more pre

Abstract: A sleeve label is fabricated from a sheet of polyethylene which is folded upon itself along two longitudinal fold lines with the overlying layers then being joined together along a seal line. The seal line is located so that the outer layer of the folded sheet forms an outer flap, which may be adhered to the body of the sleeve by a releasable adhesive strip. The outer flap can be printed to comprise a redeemable coupon, or it may be printed with detailed product information, or it may be configured to serve as a handle for the product. The label may also include a tubular header of small diameter, which can also serve as a coupon, or be printed with detailed product information, or configured to serve as a handle.

Abstract: In a method and apparatus wherein a container is formed, decorated by rotating the container and then the base of the contianer is cut off for a plastic tube, a container is formed with a diametral lug on the base to facilitate rotating the container during decorating. In another form, opposed diametral surfaces are provided on the lower end of the container adjacent the base. In another form, the diametral surfaces are arcuate. In another form, the lower end of the container includes a frustoconical surface. In another form, circumferentially spaced axial grooves are provided in the frustoconical surface.

Abstract: A fuser member having a support metallic core and a layer of material formed over the metallic core, the layer including composite material, including a silicone T-resin; a crosslinked poly(dialkylsiloxane) incorporating an oxide, wherein the poly(dialkylsiloxane) has a weight average molecular weight before crosslinking of about 5,000 to 80,000; and a silane crosslinking agent.

Abstract: A tubular film for encasing food. The tubular film comprises a material which has been regenerated from a solution of cellulose in a solvent comprising carbon disulfide. The tubular material is longitudinally stretched by from 8 to 30 percent and transversely stretched by from -3 to +10 percent while wet and the stretch is maintained during drying, said transverse stretch being less than 75 percent of the longitudinal stretch, to obtain a longitudinal crystalline orientation. In general, the tubular material has a wall thickness of from 75 to 90 percent of a tubular material which is identical except for being longitudinally unstretched. The invention also includes the method for making the tubular material by stretching the tubular material while wet and maintaining the stretch during drying.

Abstract: An inner barrel includes a male helicoid, and an outer barrel includes a female helicoid which can engage with the male helicoid of the inner barrel. The included angle of trapezoidal threads of the male helicoid are identical to an included angle of trapezoidal grooves of the female helicoid in a section perpendicular to a direction of an extension of the threads.

Abstract: A method for lining a passageway which comprises providing a plurality of tube sections connected end to end, pulling a first tube section through the passageway in a collapsed condition and thereafter everting a second tube section into the interior of said collapsed first tube section to cause it to expand outwardly toward the interior walls of said passageway.

Abstract: A semiconductor developer roller having a conductive shaft and an outer member of caprolactone-ester-based polyurethane loaded with ferric chloride. The members have low environmental sensitivity and good electrical stability.

Abstract: A transfer member having a polyimide substrate, an optional solventless intermediate adhesive layer, an outer polyphenylene sulfide layer, and an optional outer release layer, which provides enhanced bonding and decreased occurrence of delamination is provided.

Abstract: A plastic film or sheet, wherein upon immersing a test piece of the plastic film or sheet in ultrapure water, extracting pure water from near the surface of the test piece and evaluating the cleanliness of a resulting bag based on the concentration (number) of fine particles 0.3 .mu.m or greater in size dispersed in the extracted ultrapure water, the measured concentration is no greater than 5 per ml. The process comprises steps of immersing and running a plastic film or sheet (1) in ultrapure water (4) in a clean room (16), and further spraying and washing the film or sheet (1) with ultrapure water after the film or sheet (1) is drawn out, followed by drying, destaticization, cutting and heat sealing.

Abstract: A duct comprising a sealed inner tube (1) and a reinforcement (2) made of at least one strip wound in a spiral around a central axis (11) of the inner tube. The strip (10) is flat and includes at least one layer of longitudinal filamentary rovings (6) and means for assembling said filamentary rovings comprising a loosely woven weft yarn (7) and a bonding material (8) provided at least at the interface between said filamentary rovings and said weft yarn. The assembly means hold the longitudinal rovings together along the full length thereof and impart a compactness of at least 39% to said strip.

Abstract: Disclosed are medical devices of aliphatic polyketone polymers and/or polyketone polymer compositions comprising at least one aliphatic polyketone and at least one plasticizer. Also disclosed are polyketone compositions that comprise at least one aliphatic polyketone and at least one plasticizer.

Abstract: A yarn having good entanglement and good quality, preferably a multifilament polyamide yarn, a method for making the yarn, and a woven fabric made from the yarn wherein the yarn comprises the following properties: the yarn length per defect is greater than or equal to about 3000 meters per defect; the maximum skip length is less than or equal to about 120 millimeters; the ratio between yarn length per defect to maximum skip length is greater than or equal to about 50; the entanglements per meter times the average entanglement strength is greater than or equal to about 120; and the yarn can be woven sizeless. The yarn of the invention is useful in the sizeless weaving of fabric used in air bags.

Abstract: Disclosed are medical devices including a composition that includes an aliphatic polyketone and a thermoplastic polymer.

Abstract: A method for making a multi-layer plastic preform 14 with an inner layer 28 that is extrusion blow molded from a resin having an intrinsic viscosity greater than 0.90, and an outer layer 44 that is injection molded around the inner layer from a resin having an intrinsic viscosity that is at least 0.10 less than the intrinsic viscosity of the inner layer. The inner layer 28 is no greater than 200 (preferably no greater than 15%) by weight of the total weight of the preform and the outer layer 44 is at least 80% (preferably at least 85%) by weight of the total weight of the preform.

Abstract: A catheter tube having improved strength and lubricity. The catheter tube can be used advantageously as a guide wire tube for small profile intravascular catheters. The tube can be formed by extruding a mixture of thermoplastic polymeric material, hard particles, lubricating particles, and a lubricant. The lubricant is preferably an external lubricant capable of forming a film over the tube surfaces. One tube is formed of polyamide, molybdenum disulfide particles, PTFE particles, and zinc stearate. Applicants believe the hard disulfide particles and lubricating PTFE particles protrude from the tubular surfaces and are coated with a film of lubricating zinc stearate. The film is believed to reduce the friction and resulting PTFE elongation caused by a guide wire sliding over the PTFE protrusions.

Abstract: A cylindrical rotating body (1) of low inertia is provided including a cylindrical body (1) having a large length/diameter ratio. The cylindrical body (1) is of thin wall thickness and is sealed at the opposite ends by sealing means (3, 8). The hollow interior (9) of the cylindrical body (1) is loaded with a pressurized medium (10).

Abstract: A heat-resistant sheet is provided between a fusing roller and a pressing member made of a resilient material. The heat-resistant sheet is composed of a glass fiber substrate coated with or impregnating a fluororesin having good mold lubrication and heat-resistance, such as PFA and PTFE. A paper having a pre-fused toner image is carried through a section between the fusing roller and heat-resistant sheet. Accordingly, wear or separation of the heat-resistant sheet caused by friction with the fusing roller can be prevented, thereby improving durability of the heat-resistant sheet.

Abstract: A smoke filter consists of substrate threads and/or strips each pre-coated with particulate sorbent (e.g. activated carbon granules), gathered together in solid or tubular rod form e.g. within a containing sleeve. When the gathered threads and/or strips form a tubular body, this may be provided with a core.

Abstract: A multi-layer article comprises a fluoropolymer layer comprising interpolymerized units derived from vinylidene fluoride, and a melt-processable, substantially non-fluorinated polymer layer comprising a polyamide, polyimide, polyurethane, or a carboxyl, anhydride, or imide functionalized polyolefin. The non-fluorinated polymer layer further contains an aliphatic di-, or polyamine which provides increased adhesion between the fluoropolymer layer and the non-fluorinated polymer layer.

Abstract: A molded article having a photocatalytic function, a desired shape, a large contact area, and being sufficiently irradiated with ultraviolet rays, even at an inner surface thereof. Unit particles such as glass beads, or filaments such as fibers, are bonded to one another into the desired shape. Subsequently, a photocatalytic functional layer is formed on a surface of each particle or fiber. Particles of a spontaneous emission ultraviolet radiating material or light storage-type ultraviolet radiating material may be mixed in the molded article.

Abstract: A hybrid fiber reinforcing system that enhances ductility of concrete at small and large crack openings, while avoiding the necessity of using steel fibers at high (e.g., 1%) volumes, by taking into account Young's modulus, deploying large surface area to volume ratios for improved anchorage, and using different relative lengths.

Abstract: A molding die assembly includes an outer molding die which forms an outer peripheral surface of a cylindrical mold, and, an inner molding die which forms an inner peripheral surface of the cylindrical mold, wherein the outer molding die is comprised of a plurality of split die elements which are split at an oblique separating surface inclined with respect to the circumferential and axial directions of the cylindrical mold.

Abstract: A charge roller has a steel shaft and conductive outer cylindrical body which is formed by curing with heat a blend comprised of epichlorohydrin rubber, mineral-oil-free zinc oxide dispersion, stearic acid as a lubricant, accelerators and a sulfur donor. The roller has a long useful life and does not express oil while inactive.

Abstract: A fuser member having a resistive heating layer including a polymer and a mixture of more than one variety of carbon black, the mixture including a first carbon black and a second carbon black of a different variety than the first carbon black.

Abstract: Improved flexible film and tubing for medical products manufactured from a PVC compound, comprising an amount of ultra high molecular weight (UHMW) PVC resin having an inherent viscosity ranging from about 1.25 to about 2.00, most preferably about 1.71, and about 43 to about 57 percent by weight of a medically acceptable plasticizer, most preferably about 53 percent, such as tri (2-ethylhexyl) trimellitate (TOTM).

Abstract: The present invention discloses a process comprising forming a preform with planar stretch ratios greater than about 14 from a polyester having a natural stretch ratio which is substantially matched to the preform planar stretch ratio at processing conditions; and stretch blow molding said preform to produce a container. Suitable natural stretch ratios include those greater than about 13 at 210.degree. F. The desired natural stretch ratios and desirable final container properties are achieved by balancing the appropriate I.V. and copolymer modification.

Abstract: A thermoplastic composition with improved properties for making fuel containers, e.g. for fuel oil, petrol, diesel oil or alcohol, and specifically for making fuel lines for feeding fuel to a fuel tank or engine. The thermoplastic composition includes a thermoplastic polymer matrix and at least one compound that enhances the resilience of thermoplastic compositions. Said matrix consists of a mixture of: at least one first thermoplastic copolymer produced by copolymerising .epsilon.-caprolactam with at least one monomer selected from the group which includes an amino acid having at least nine carbon atoms, or the corresponding lactam, and a mixture of hexamethylediamine and a diacid having at least nine carbon atoms, the weight ratio of the .epsilon.-caprolactam to the total amount of hexamethylenediamine and diacid being 4-9; and at least one second thermoplastic polymer or copolymer produced by polymerising monomers having at least nine carbon atoms.

Abstract: Adhesion promoting compositions comprising mixtures of carboxylated unsaturated polymers and a) amines; b) amine derivatives; or c) mixtures of hydroxy compounds and quaternary phosphonium salt accelerators or quaternary ammonium salt accelerators are useful as components of curable elastomer compositions. The curable compositions exhibit excellent adhesion to fluoropolymers.

Abstract: A telecommunications cable includes an extruded plastic member formed of an extruded blend of a nonplasticized polyvinyl chloride and an ether-based polyurethane. The blend may be used in the extrusion of tubes or ribbons holding light waveguides or metallic conductors.

Abstract: The invention relates to a novel copolyether-ester containing hard segments derived from at least one low-molecular-weight glycol and at least two dicarboxylic acids, or esters thereof, chosen from the group comprising 2,6-naphthalenedicarboxylic acid, 4,4'-diphenyldicarboxylic acid and terephthalic acid, which contains, if desired, isophthalic acid, and containing soft segments derived from the group comprising poly(alkylene oxides).The copolyetherester according to the invention has improved properties at high temperature while retaining the properties at low temperature.

Abstract: A flavor-retaining multi-layer plastic container comprising an intermediate layer of a cyclic olefin copolymer and inner and outer layers of a non-cyclic olefin resin or an ethylene/vinyl alcohol copolymer jointed together via an adhesive, effectively eliminating the degradation in the adhesion when the container is filled with fragrant components and after the elapse of time. The flavor-retaining plastic multi-layer container comprises, inner and outer layers of a non-cyclic olefin resin, and an intermediate layer of a cyclic olefin copolymer adhered together via adhesive resin layers, wherein said adhesive resin is a linear very-low-density polyethylene having a density of from 0.800 to 0.910 g/cm.sup.3 obtained by the copolymerization of an ethylene with an .alpha.-olefin of an amount of from 6 to 20 mol % per the resin, or is an acid-modified product thereof.

Abstract: A charge roller made from a mixture of urethane, polybutadiene, a polyether diol, ferric chloride, and antimony doped tin oxide with or without carbon black. The roller has a very high outer surface electrical resistance from baking the roller to oxidize the polybutadiene. The charge roller is achieved at low production cost and functions well even with charging by a DC potential with an AC overlay.

Abstract: The invention features an empty device for receiving a bioactive agent. The device includes a biocompatible and semi-permeable membrane that defines an enclosed space; the membrane also has at least one end that defines an opening for introducing the bioactive agent into the enclosed space. The device is configured to be placed in an animal.In one embodiment of the invention, the membrane has an inner surface and an outer surface, where the inner surface defines the inner surface, and includes a biocompatible adhesive in the general region of the opening to allow sealing of the opening after the introduction of the bioactive agent into the enclosed space.Another embodiment of the invention includes a biocompatible frame mounted in supporting relationship to the membrane and defining an opening for introducing the bioactive agent into the enclosed space. The frame has greater porosity than the membrane.

Abstract: A reinforced pultrusion product comprises a polymeric matrix, at least one longitudinally oriented buckled reinforcement fiber embedded in said polymeric matrix, and at least one longitudinally oriented linear reinforcement fiber embedded in said polymeric matrix. The product is formed through a pultrusion process wherein a set of composite strands comprising reinforcement fibers and polymeric fibers are provided. A supplemental tension force is applied to a first subset of the composite strands. The composite strands are heated such that the polymeric fibers of a second subset of composite strands shrink to cause the reinforcement fibers in each of the second subset of composite strands to buckle. The heated set of composite strands, including the buckled reinforcement fibers, are consolidated in a pultrusion die.

Abstract: A chlorosulfonated ethylene-.alpha.-olefin copolymer composition comprising a chlorosulfonated ethylene-.alpha.-olefin copolymer, a thiuram compound, a bismaleimide compound, a nickel dialkyldithiocarbamate, and a diarylmonoamine compound, and a motorcar joint boot obtained by molding and vulcanizing the chlorosulfonated ethylene-.alpha.-olefin copolymer composition. The copolymer composition is excellent in the tensile characteristics at room temperature and low temperature, in the compression set under a low-temperature atmosphere, and in the fatigue resistance.

Abstract: The invention relates to a corrugated pipe of thermoplastic polymer material for use as fluid line with at least one polymer layer, comprising closed geometric outer contours which are spaced at an interval from each other in the axial direction of the pipe and which define a corrugation on the pipe jacket in at least one radial angular sector in axial, longitudinal direction one behind the other. The closed geometric outer contours are designed in such a manner that two jacket lines of the pipe jacket surface, which lines are approximately opposite one another, are free of corrugations and that these jacket lines extend in the longitudinal direction of the pipe (FIGS. 1b-1d).