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| Number | Title | Issue Date |
| 8163217 | Method of making heat-resistant transparent container This invention relates to a method of making a heat-resistant transparent container which involves the steps of: a primary stretching and heat-setting process wherein an amorphous polyethylene terephthalate sheet is heated, primari... | 04/24/2012 |
| 7364659 | Preparation of asymmetric polyethylene hollow fiber membrane A porous polyethylene hollow fiber membrane having a pore-size gradient across the inner and outer surfaces thereof is prepared by introducing, during the cooling step of a melt-spun polyethylene hollow fiber, a nitrogen flow and a solvent having a boiling point in ... | 04/29/2008 |
| 7087269 | Multi-component composite membrane and method for preparing the same The present invention relates to a multi-component composite separate membrane and a method for preparing the same, and to a multi-component composite membrane comprising a support layer and active layers, wherein the support layer is located between the active laye... | 08/08/2006 |
| 7056461 | Process of making polyester multifilament yarn A method of producing a polyethylene terephthalate-based polyester fiber includes spinning polyethylene terephthalate based polyester to produce an undrawn yarn with an intrinsic viscosity of 0.83 or more and a density of 1338 g/cm3 or more, multi-stage d... | 06/06/2006 |
| 7022280 | Process of making a flat yarn from polyoxymethylene film A flat yarn of a high strength and a high modulus of elasticity, being excellent in solvent resistance, thermal stability and resistance to bending fatigue is provided. The flat yarn comprises polyoxymethylene copolymer containing 0.5 to 10 moles of specified oxyalk... | 04/04/2006 |
| 6942831 | Process for rapid annealing of a polyester film base to control film curl A high-CHDM PET-based support for an imaging element can be annealed relatively rapidly to achieve acceptable core-set and post-process curl properties. The fast annealing response of this material allows effective in-line annealing of the film support, yielding a m... | 09/13/2005 |
| 6835339 | Process for preparing poly(trimethylene terephthalate) tetrachannel cross-section staple fiber Poly(trimethylene terephthalate) tetrachannel cross-section staple fibers, as well as yarns, fiberfill webs, batts and products, and fabrics made therewith. Also, the process of making such staple fibers, yarns, fiberfill webs, batts and products, and fabrics. ... | 12/28/2004 |
| 6780361 | Process of making polymer articles A method including forming a pseudo-gel of a semi-crystalline polymer material and a solvent. The pseudo-gel is shaped into a first form and stretched. A portion of the solvent is removed to create a second form. The second form is stretched into a microstructure in... | 08/24/2004 |
| 6764623 | Process of making polyester filamentary yarn for tire cords Polyester multi-filamentary yarn, useful as tire reinforcement, is produced by melting polyester resin at 290° C. or below including at least 90 mol % of polyethylene terephthalate with intrinsic viscosity of 0.7-1.2; filtering the molten resin for filtering retent... | 07/20/2004 |
| 6756000 | Process of making multifilament yarn The present invention is directed to processes for the manufacture of multifilament yarn, including the steps of extruding multifilaments of a polymer containing at least mole 85 percent L-lactide and not more than 15 mole percent glycolide, spinning the extruded mu... | 06/29/2004 |
| 6752945 | Process for making poly(trimethylene terephthalate) staple fibers A process of making polytrimethylene terephthalate staple fibers, including (a) providing polytrimethylene terephthalate, (b) melt spinning the melted polytrimethylene terephthalate at a temperature of 245-285° C. into filaments, (c) quenching the filaments, (d) dr... | 06/22/2004 |
| 6743505 | Bioabsorbable multifilament yarn and methods of manufacture The present invention relates to a process of forming bioabsorbable, multifilament yarn from Lactide-rich copolymers, including the steps of extruding and spinning a Lactide-rich copolymer to form a spun multifilament yarn, pre-tensioning the spun multifilament yarn... | 06/01/2004 |
| 6743388 | Process of making polymer articles A method including forming a semi-crystalline polymer material into a lamella; and stretching the lamella into a polymer including a node of folded lamella and a fibril orientation. A method including extruding a pseudo-gel including an ultrahigh molecular weight po... | 06/01/2004 |
| 6719935 | Process for forming bioabsorbable implants A process for forming a rod of bioabsorbable polymeric material includes extruding the material at a temperature above its melting point at a controlled rate of between 0.4 to 20 feet per minute to form a continuous rod. The continuous rod is then cooled by passing ... | 04/13/2004 |
| 6699418 | Method for producing biaxially stretched film made of ethylene-vinyl alcohol copolymer A method for producing a biaxially stretched film is provided, in which the method comprises, stretching a film made mainly of an ethylene-vinyl alcohol copolymer having an ethylene content of 15 to 70 mol % and a saponification degree of 80 mol % or more... | 03/02/2004 |
| 6692687 | Method for high-speed spinning of bicomponent fibers Highly crimped, fully drawn bicomponent fibers, prepared by melt-spinning, followed by gas-flow quenching, heat treatment and high speed windup, are provided, as are fine-decitex and highly uniform polyester bicomponent fibers.... | 02/17/2004 |
| 6660211 | Methods of making biodegradable films having enhanced ductility and breathability The present invention is directed to methods of making biodegradable films and biodegradable precursor films having enhanced breathability and ductility. The method includes blending a water soluble polymer and a biodegradable polymer to form a blended po... | 12/09/2003 |
| 6613257 | Process for making load limiting yarn A process for making load limiting yarn comprising making block copolymer and then spinning the block copolymer into yarn. The process employs a twin screw extruder and comprises (A) forwarding aromatic polyester melt to an injection position in a twin sc... | 09/02/2003 |
| 6569366 | Process for producing meta-type wholly aromatic polyamide filaments A meta-type wholly aromatic polyamide containing, as principal repeating units, meta-phenylenediamineisophthalamide units is dissolved in an amide compound solvent; the resultant polymer solution is subjected to a wet-spinning procedure wherein the polyme... | 05/27/2003 |
| 6540953 | Microporous membrane and method for providing the same A method of producing a microporous membrane comprising the steps of: extruding a polymer at a temperature of from (polymer melting point +10° C.) to (polymer melting point +100° C.); drawing the extruded polymer at a rate of 5~120 m/min in 10~150° C. ... | 04/01/2003 |
| 6527996 | Process of making a tubular dental hygiene device This invention relates to a novel composition for use in dental flosses or tapes. More particularly, it relates to novel compositions containing a base polymer, a block copolymer and a nonmigrating compatibilizer or plasticizer that, in combination in a b... | 03/04/2003 |
| 6478999 | Process of making adhesive tape A manufacturing method of adhesive tape, by preparing a raw material of a biaxially or non-drawn, film or sheet on the back surface of which a release agent has been applied and to the which an adhesive agent has been applied, and subjecting the raw mater... | 11/12/2002 |
| 6419866 | Process of making synthetic absorbable autoclaveable monofilament fibers and brachytherapy seed spacers The present invention is directed to absorbable, autoclaveable, monofilament fibers prepared from absorbable glycolide-rich polymers, in which the fibers are oriented in the total draw ratio range 4.1 to 5.6×, and are annealed at a temperature between ab... | 07/16/2002 |
| 6395208 | Method of making an expandable fluoropolymer device A method of making a radially expandable device having a body constructed of a generally inelastic, expanded fluoropolymer material. The body is deployable upon application of a radial expansion force from a reduced diameter, collapsed configuration to an... | 05/28/2002 |
| 6332993 | Process of making heat-retaining fibers A method for making heat-retaining fiber and fabrics. According to the present invention, the white conductive particles and the white particles with good radiating efficiency of far-infrared radiation are added in fiber-forming polymers to obtain the mix... | 12/25/2001 |
| 6287499 | Process of making bioabsorbable block copolymer filaments A method for making bioabsorbable block copolymer includes extruding a mixture of first polymeric component particles with second polymeric component particles under conditions sufficient to cause transesterification. The resulting block copolymer filamen... | 09/11/2001 |
| 6245270 | Process for the production of porous polyolefin A polyolefin porous material is produced by synthesizing silica particles, polysiloxane particles or crosslinked vinyl polymer particles having an average particle diameter of 0.01 to 0.1 μm in a molten polyolefin to obtain a polyolefin composition. The ... | 06/12/2001 |
| 6221301 | Method of producing thermoplastic resin films and apparatus for producing the same Method and apparatus for producing thermoplastic resin film which allows a biaxially oriented polyester film to be formed at a high speed of 400 m/min or more. In the method, a molten thermoplastic resin film is brought into contact with a cooling medium,... | 04/24/2001 |
| 6210622 | Process of making polymeric fibers A for the production of polymeric fibers in the form of a tow includes drawing and heat setting, with and without crimping, in which the tow has a constant denier per inch during the processing. The process permits very large drawn tows to be produced hav... | 04/03/2001 |
| 6203743 | Heat setting a tow of synthetic fibers using high pressure dewatering nip An apparatus and method for heat setting a traveling tow of synthetic filaments utilizing a high pressure dewatering nip roll mechanism to remove moisture from the tow prior to heat setting. The high pressure dewatering nip roll mechanism includes a pair ... | 03/20/2001 |
| 6153133 | Method of producing highly permeable microporous polyolefin membrane A method for producing a highly permeable microporous polyolefin membrane including the steps of preparing a polyolefin solution containing 5-40 weight % of a polyolefin or a polyolefin composition and 95-60 weight % of a solvent, the polyolefin having a ... | 11/28/2000 |
| 6136439 | Monolayer polymeric film and method of fabrication A monolayer printable polymeric film and method for making the film. The film is formed by mixing a structural material, such as polypropylene or polyethylene, with a printable material, such as vinyl-acetate or methacrylate, to form a unitary mixture pri... | 10/24/2000 |
| 6129876 | Heat setting of medical tubings The present invention provides a method for fabricating flexible medical tubings comprising the steps of providing a tubing of a polymer material, the tubing having a longitudinal axis and an initial diameter, orienting the tubing along the longitudinal a... | 10/10/2000 |
| 6036895 | Process and device for the formation of monofilaments produced by melt-spinning A continuous process and apparatus for the production of melt-spun monofilaments having a diameter of 60 μm to 2500 μm from fiber-forming polymers, wherein the polymer melt is spun into air from a spinning head, laterally quenched in a spinning cabinet ... | 03/14/2000 |
| 5945055 | Process for making a filament from a polyester-polypropylene blend A method for making linear materials for fasteners, particularly monofilaments, which possess pearly luster and retain this pearly luster intact even after being dyed. A polyester, particularly polyethylene terephthalate, is blended with 1 to 10% by weigh... | 08/31/1999 |
| 5891376 | Film process A controlled permeability film and process for producing same wherein the film includes: a film forming polyolefin polymer; and an inert porous filler in an amount effective to reduce the ratio of the carbon dioxide permeability and water permeability to ... | 04/06/1999 |
| 5888434 | Process for making a microporous membrane from a blend containing a poly (phenylene sulfide) polymer, an amorphous polymer, and optionally a solvent The invention relates to a process for preparing a microporous membrane from an unsulfonated poly(phenylene sulfide) polymer by forming a mixture of an unsulfonated poly(phenylene sulfide) polymer, an amorphous polymer, and optionally a plasticizer, heati... | 03/30/1999 |
| 5858505 | Macroscopically perforated porous polytetrafluoroethylene materials A macroscopically perforated porous expanded polytetrafluoroethylene sheet material having a microstructure of nodes interconnected by fibrils wherein the perforations have a minimum diameter of about 0.1 mm and wherein the orientation of a fibril varies ... | 01/12/1999 |
| 5843358 | Process for producing a steam-sterilizable porous polyolefin membrane and polyethylene membrane steam-sterlizable at 134° C. Process for producing a steam-sterilizable porous polyolefin membrane with a porosity of at least 20% and a shrinkage of 4% at most in every direction in the plane of the membrane in steam sterilization by subjecting a porous stretched film to a shrink tr... | 12/01/1998 |
| 5762840 | Process for making microporous fibers with improved properties A distinctive technique for making porous fiber includes a stretching of a substantially continuous fiber while the fiber is in an operative association with an effective quantity of surface-active material. The fiber can be produced from a source materia... | 06/09/1998 |
