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| Number | Title | Issue Date |
| 7368526 | Functionalized porous poly(aryl ether ketone) materials and their use Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional primary amines are primary aliphatic amines or substituted hydrazines ... | 05/06/2008 |
| 7329355 | Method for absorption of hydrocarbons and low-polarity chemicals The present invention relates to methods of recovering hydrocarbons or low polarity organic chemicals from hard surfaces, water and water surfaces, in their vapor state and from porous substrates. The hydrocarbons or low-polarity organic chemicals may be included in... | 02/12/2008 |
| 7287327 | Electret capacitor microphone and method for producing the same A method for producing an electret capacitor microphone high in sensitivity and stable in acoustic characteristic. A PET film stretched with predetermined tension is bonded to a diaphragm support ring to perform stretch and fixation of a diaphragm to produce a diaph... | 10/30/2007 |
| 7282242 | Multilayer polymer structure The present invention provides a multilayer polymer structure including an inner structural layer (A) of a rigid polymer composition, an intermediate or tie layer (B) of a polymer composition including a thermoplastic polyurethane, and an exposed or surface layer (C... | 10/16/2007 |
| 7229580 | Preparation of porous poly(aryl ether) articles and use thereof The preparation and use of novel porous poly(aryl ether) articles is disclosed. The porous articles are prepared from blends of poly(aryl ether) polymers with polyimides by selectively decomposing the polyimide phase. The preferred reagents used to decompose the pol... | 06/12/2007 |
| 7176273 | Functionalized porous poly(aryl ether ketone) materials and their use Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional primary amines are primary aliphatic amines or substituted hydrazines ... | 02/13/2007 |
| 7037461 | Method of stretching film A method of stretching films in which all or a portion of the width of the film is cooled during or just after stretching so as to improve the uniformity of the film. The includes stretching a polymeric film in a tenter that grasps the film with a plurality of clips... | 05/02/2006 |
| 6905646 | Methods of producing synthetic resin wire A method of producing a synthetic resin rod (wire), comprising: an extruding step of extruding a synthetic resin rod; a pre-cooling step of spraying a cooling medium on the rod to pre-cool the rod extruded down to ... | 06/14/2005 |
| 6887408 | Porous poly(aryl ether ketone) membranes, processes for their preparation and use thereof Porous poly(aryl ether ketone) (PAEK) articles are prepared from PAEK/polyimide blends by selective chemical decomposition and subsequent removal of the polyimide phase. Porous PAEK articles exhibit highly interconnected pore structure and a narrow pore size distrib... | 05/03/2005 |
| 6824734 | Method of producing latent elastic, cross-direction-oriented films A blown film process for producing low gauge, latent elastic films with high cross-direction orientation includes preferentially regulating the temperature gradient of the film along the expansion length. The regulation of temperature along the bubble profile allows... | 11/30/2004 |
| 6228315 | Torsion cords and method for molding the same A new and improved apparatus and method for producing torsion cords comprising the steps of: (1) casting a torsion cord of a rubber composition, the mold having a high pressure resistant cylindrical wall and opposite closed ends, (2) efficiently curing th... | 05/08/2001 |
| 5945210 | Porous film and preparation process thereof A porous film is here disclosed which is obtainable by stretching a film in at least uniaxial direction, said film being formed from a resin composition containing 25 to 70 parts by weight of a polyolefin resin and 75 to 30 parts by weight of an inorganic... | 08/31/1999 |
| 5942326 | Shrink film with good ink adhesion A film, having two major surfaces, includes an outer layer including a copolymer of ethylene and a C3 to C10 alpha olefin, wherein at least one surface has a silicone coating of between 0.1 and 1.2 milligrams per square feet. Multila... | 08/24/1999 |
| 5925307 | Method for forming oriented plastic pipe A method and apparatus for forming an oriented plastic pipe from a plastic tubular material includes a first heated liquid bath for heating the plastic material to the glass transition temperature and a cooled liquid bath downstream of the heated liquid b... | 07/20/1999 |
| 5925305 | Oriented film easy to split and method of producing the same An oriented splittable film which contains nylon and meta-xylylene adipamide at a weight ratio of 40-85:15-60 and which was oriented with a magnification above 2.8 times in both directions of MD and TD. Examples of nylon include nylon 66, nylon 6-66 copol... | 07/20/1999 |
| 5595705 | Method of manufacturing packaging and wrapping film A method of manufacturing a monolayer heat-shrinkable, puncture-resistant biaxially oriented film is disclosed. The method includes a double bubble orientation step and extruding a primary tube that includes at least one substantially linear ethylene homo... | 01/21/1997 |
| 5591390 | Method of manufacturing packaging and wrapping film A method of manufacturing a multilayer heat-shrinkable, puncture-resistant biaxially oriented film is disclosed. The method includes a double bubble orientation step and extruding a primary tube that includes at least one substantially linear ethylene hom... | 01/07/1997 |
| 5384080 | Method and apparatus for the reduction of the sag and/or of the varying stress profile of a flattened tubular film web produced by a blown film process The invention refers to a method for the reduction of the sag and/or of the different stress profile of a flattened tubular film web produced by a blown film process and made of thermo-plastic synthetic resin, transversely to its longitudinal direction. F... | 01/24/1995 |
| 5368811 | Producing heat-shrinkable tube A heat-shrinkable polyester tube, which is a tube having heat shrinkability imparted by subjecting an unstretched tube made of a thermoplastic polyester resin to tubular stretching, and which has a crystallinity of not higher than 20% and a shrinkage of m... | 11/29/1994 |
| 5350471 | Production of cross-laminated film from tube A cross-oriented multi-layer laminated plastic film is produced by first providing a flattened tubular plastic film having a outer plastic film layer with a first melting temperature and an inner plastic film layer with a second melting temperature lower ... | 09/27/1994 |
| 5298202 | Double bubble process for making strong, thin film Polymeric, thin oriented films can be made by use of a combination of a hot blown process and a blown bubble process, i.e. a double bubble process. The resulting film has use in replacing PVC for in store stretch wrap applications. Very low density polyet... | 03/29/1994 |
| 5256351 | Process for making biaxially stretched, heat shrinkable VLDPE films A method of manufacturing heat-shrinkable, puncture resistant, biaxially stretched thermoplastic films from very low density polyethylene (VLDPE). The film may be entirely VLDPE or it may be multilayer with an oxygen barrier core layer formed of material ... | 10/26/1993 |
| 5252626 | Method for treating the surface of a thin porous film material A method for treating the surface of a thin porous film material of tetrafluoroethylene resin is disclosed, which comprises heating said surface to a temperature higher than the thermal decomposition point of said resin so as to decompose and remove part ... | 10/12/1993 |
| 5082616 | Film blowing process A method for preparing biaxially oriented poly(vinylidene fluoride) films involving the addition of a minor amount of a polymer miscible with PVDF, particularly poly(methyl methacrylate), to the poly(vinylidene fluoride) to form a blend exhibiting reduced... | 01/21/1992 |
| 4988465 | Manufacture of multilayer film containing very low density polyethylene A coextruded, heat shrinkable, thermoplastic multilayer film for packaging fresh red meat cuts and processed meats. The film is produced by coextruding a multilayer structure which includes a first layer comprising very low density polyethylene, a first c... | 01/29/1991 |
| 4985197 | Process for preparing heat shrinkable polyethylene film A process for preparing a heat shrinkable film which is made from a copolymer of ethylene and 0.5 to 10% by mole of an -olefin having 4 to 12 carbon atoms, the copolymer having a g* value (i.e., intrinsic viscosity of the copolymer/intrinsic viscos... | 01/15/1991 |
| 4976898 | Process for making puncture resistant, heat-shrinkable films containing very low density polyethylene Method of manufacturing a heat shrinkable biaxially oriented thermoplastic film by extruding a primary tube including very low density polyethylene (VLDPE), heating the primary tube and biaxially stretching the heated primary tube using a double bubble me... | 12/11/1990 |
| 4865780 | Process for producing irradiated multilayer film for primal meat packaging A heat-shrinkable, multilayer film suitable for use in fabricating bags for packaging primal and sub-primal meat cuts and processed meats. The multilayer film has a first outer layer of a first ethylene-vinyl acetate copolymer, a core layer of a barrier f... | 09/12/1989 |
| 4842803 | Method and apparatus for extruding blown thermoplastic film tubes The rate for producing blown films of thermoplastic resins may be increased by using the extrusion and blowing apparatus of the invention, which includes a means of rapidly cooling the blown film at points both above and below the bubble frost line.... | 06/27/1989 |
| 4840552 | Apparatus for continuously producing heat-shrinkable crosslinked resin tube An apparatus for continuously producing a heat-shrinkable crosslinked resin tube from a crosslinkable resin is provided, comprising in successive connection, an extruder head for extruding the resin into a hollow tube, a fluid under pressure being introdu... | 06/20/1989 |
| 4759702 | Stretching device for stretching tubular film A stretching device for stretching a tubular film includes a mandrel including a stretching section, a pair of payoff nip rolls disposed upstream of the mandrel and a pair of take-up nip rolls disposed downstream of the mandrel. The stretching section of ... | 07/26/1988 |
| 4753767 | Extrusion apparatus and method Extrusion apparatus for producing a continuous molten tube of a film-forming material includes an extrusion die defining an annular extrusion orifice between adjustable die lips through which a heat-plastified, synthetic, resinous, extrudable film-forming... | 06/28/1988 |
| 4735538 | Process of forming a biaxially oriented thermoplastic tube including the formation and severance of a bubble forming a radially outwardly flared leading tube end A process of forming biaxially oriented tubular articles by repeatedly performing a cycle of operations which includes engaging a thermoplastic tube by a first clamping member over a first region at a trailing end of the tube and engaging the tube by a se... | 04/05/1988 |
| 4704238 | Process for the production of air-permeable films A process for producing an air-permeable film is described, comprising stretching in at least one direction a film made of a composition comprising 42 to 87 vol % of a polyolefin resin and 58 to 13 vol % of an inorganic filler and further containing an al... | 11/03/1987 |
| 4687615 | Method of producing biaxially oriented tubular polyetheretherketone films A method of producing biaxially oriented tubular polyetheretherketone films having good optical and mechanical properties and heat resistance, by rapidly quenching at a rate of at least 24° C. per second an unoriented tubular polyetheretherketone film as... | 08/18/1987 |
| 4683094 | Process for producing oriented polyolefin films with enhanced physical properties An improved method for the production of polyolefin film by extruding molten film from an annular die in a tubular form into an extrusion zone is disclosed wherein physical properties are enhanced by controlling polymeric crystalline growth. The method in... | 07/28/1987 |
| 4668761 | High strength, high modulus polymeric material in continuous length, process for production thereof and device therefor A polyacetal copolymer of continuous length is disclosed. The copolymer has an apparent density of 1.20 to 1.46 g/cm3, and a tensile modulus (X) of 19 GPA or more and a density change percentage (Y) of 85% or more. The relationship between the ... | 05/26/1987 |
| 4663097 | Method and apparatus for controlling dynamic instability in axially moving form A method and apparatus for controlling induced dynamic instability in an axially moving form supported between two axially spaced supports wherein the form is relatively soft and therefore exposed to development of transverse tensional forces tending to p... | 05/05/1987 |
| 4659534 | Production of thin-walled cylindrical body of aromatic polyester A process for producing a thin-walled cylindrical body of an aromatic polyester, which comprises (A) heating a continuous thick-walled tubular body of an aromatic polyester by introducing it continuously into a heating zone while feeding a pressure fluid ... | 04/21/1987 |
| 4541983 | Preparing heat resistant heat shrinkable films A three layer heat shrinkable film is disclosed, along with preferred process for making it. The film comprises a first heat sealable layer of an ionomer, a second layer of a vinylidene chloride copolymer, and a third layer of a blend of an ionomer and an... | 09/17/1985 |
