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| Number | Title | Issue Date |
| 8022171 | Process for making a monofilament-like product The invention relates to a process for making a monofilament-like product from a precursor containing a multitude of continuous polyolefin filaments, comprising exposing the precursor to a temperature within the melting point range of the polyolefin for a time suffi... | 09/20/2011 |
| 7371455 | Laminates and packaging containers A laminate has a core layer and a skin layer on either side of the core layer, wherein the skin layer is formed of a copolymer having a glass transition point of 85° C. or more and 115° C. or below and consisting of 2,6-naphthalene dicarboxylic acid or its lower a... | 05/13/2008 |
| 7351243 | High strength bioresorbables containing poly-glycolic acid Polymer compositions comprising poly-glycolic acid (PGA) or a functional derivative thereof with a tensile strength of at least 1200 MPa are disclosed. Processes suitable for manufacturing said compositions are also described, comprising rendering PGA into an amorph... | 04/01/2008 |
| 7311963 | Process for the production of a shaped article The invention relates to a process for the production of a shaped article comprising the compression of one or more fiber layers containing polyolefin fibers. The invention also relates to shaped articles obtainable with the process according to the invention and th... | 12/25/2007 |
| 6992128 | Highly active β-nucleating additive for polypropylene The invention relates to a method for enhancing the fraction of β-crystal modification in polypropylene by compounding nanocrystalline substances. A β-fraction of 50–100% is achieved with said method. The compounds are characterized by improved mechanical proper... | 01/31/2006 |
| 6569987 | Process for producing meta-aromatic polyamide fiber To produce meta aramid filaments having a good quality from a polymer solution of a meta aramid produced by a solution polymerization method, with high efficiency, (1) a meta aramid is prepared by polymerization-reacting a aromatic meta-diamine with a aro... | 05/27/2003 |
| 6515099 | Shaped article of polyamide resin and production thereof The polyamide resin shaped article of the present invention is produced by preliminarily melt-kneading a m-xylylene-containing polyamide resin and a layered silicate subjected to a swelling treatment to prepare a resin composition containing the layered s... | 02/04/2003 |
| 6476172 | Metallocene catalyzed propylene--olefin random copolymer melt spun fibers A fiber product drawn from an isotactic propylene copolymer of a C2, C4, C5, C6, C7 or C8 -olefin monomer produced in the presence of a metallocene catalyst characterized by a bridge... | 11/05/2002 |
| 6297345 | Polyamide having excellent stretching properties A polyamide with excellent stretching properties is disclosed, which comprises 50 to 99.8 mol % of a unit derived from a lactam and/or an aminocarboxylic acid, 0.1 to 25 mol % of a unit derived from a dicarboxylic acid, and 0.1 to 25 mol % of a unit deriv... | 10/02/2001 |
| 6277495 | Polyimide film, a method for its manufacture and a polyimide film containing metal laminated plate A polyimide film of birefringence less than 0.01 is formed by drawing a copolymerized polyimide comprising a block component and a random component which are molecularly bonded, wherein the block component of copolymerized polyimide comprises an aromatic ... | 08/21/2001 |
| 6255445 | Polymers having improved processability Poly(lactones) are provided. The poly(lactones) are obtained by polymerization of a lactone with an initiator system comprising at least one polyfunctional initiator. The poly(lactones) have a shear viscosity at some temperature in the range of from 35 to... | 07/03/2001 |
| 6159406 | Process for rapid crystallization of polyesters and co-polyesters via in-line drafting and flow-induced crystallization The present invention relates to a process for introducing strain-induced crystallization to polyesters. Specifically, amorphous polymer from the melt phase reactor is first extruded through a traditional strand die. However, instead of going directly int... | 12/12/2000 |
| 6127501 | Polyethylene membrane steam-sterilizable at 134° C. Porous polyolefin membrane with a porosity of at least 20%, which is steam sterilizable at elevated temperature, wherein the polyolefin is polyethylene with an intrinsic viscosity of at least 5 dl/g and the membrane shows a shrinkage of at most 4% in ever... | 10/03/2000 |
| 5948525 | Biaxially stretched polyester film for forming container and method of producing the film A biaxially stretched polyester film for forming a container, characterized by being formed of a polyester substantially consisting of an ethylene terephthalate unit and an ethylene naphthalate unit, the refractive index in the direction of thickness of t... | 09/07/1999 |
| 5935499 | Method and apparatus of transferring a packet and generating an error detection code therefor Fibers and yarns of polyethylene terephthalate (PET) and PET copolymers with a sheath/filamentous core microstructure are formed from unoriented and non crystalline "as spun" source fibers and yarns by drawing to high draw ratios in one step. Fibers and y... | 08/10/1999 |
| 5837806 | Polyanilines and their manufacture A polyaniline is characterized by a nuclear magnetic resonance spectrum in its leuco form showing only two 13 C peaks, indicating the substantal absence of chain branching, and preferably by a molecular weight (Mp) above 90,000 and u... | 11/17/1998 |
| 5830554 | Method of producing of microporous polyolefin membrane An efficient method of producing a microporous polyolefin membrane having improved tensile strength and pierce strength is provided, in which a solution having dissolved therein 5% by weight to 50% by weight of a polyolefin whose weight-average molecular ... | 11/03/1998 |
| 5756660 | Process for producing polyethylene material of high strength and high plastic modulus A polyethylene article such as film or fiber having high strength and high elastic modulus is produced by orienting an ultra-high molecular weight polyethylene having an intrinsic viscosity at 135° C. in decalin of 5 to 50 dl/g, said ultra-high molecular... | 05/26/1998 |
| 5750645 | Process for the production of calendered film of polypropylene resin A process which combines a calender with a stretching system and a set of heating rolls is provided in this invention to produce films of polypropylene resin of wide thickness range. The polypropylene films which have cavities distributed in the film and ... | 05/12/1998 |
| 5679753 | Ferroelectric polymer single crystalline body and method of producing the same and use thereof A ferroelectric polymer single crystalline body consists of a copolymer of ethylene trifluoride and/or ethylene tetrafluoride and vinylidene fluoride in form of a film or a fiber and is used in a piezoelectric, pyroelectric or nonlinear optical element. T... | 10/21/1997 |
| 5679758 | Method for producing shaped articles of soluble wholly aromatic polyamides Shaped articles are obtained from a polymerization mixture of soluble wholly aromatic polyamides in a gel state.... | 10/21/1997 |
| 5652313 | Two-stage process for the manufacture of thermoplastic polycarbonate The present invention provides a two-stage melt process for the manufacture of thermoplastic, solvent-free, low-branched polycarbonates with low OH end-group contents with the use of ammonium or phophonium catalysts in the first stage and alkali and alkal... | 07/29/1997 |
| 5474730 | Production of highly birefringent film A thin, biaxially oriented polyester film which is asymetrically oriented by stretching 1-2 times in the machine direction and about 3-5 times in the transverse direction in the plane of the film is disclosed. The film has a birefringence of at least 0.08... | 12/12/1995 |
| 5439966 | Polyethylene oxide temperature - or fluid-sensitive shape memory device A temperature- and/or polar fluid-sensitive device which comprises a mechanically strained semi-crystalline hydrophilic polymer.... | 08/08/1995 |
| 5431982 | Unidirectionally long biaxially oriented film of polyethylene-2,6-naphthalenedicarboxylate A unidirectionally long, biaxially oriented film of polyethylene-2,6-naphthalenedicarboxylate: (A) which has a Young's modulus of 400 to 600 kg/mm2 in the machine direction and a Young's modulus of at least 1,200 kg/mm2 in the transv... | 07/11/1995 |
| 5320905 | Ionomers of ethylene/carboxylic acid copolymers Novel ionomers of normally solid, thermo-plastic, orientable, copolymers of ethylene and at least one alpha,beta-ethylenically-unsaturated carboxylic acid having a relatively high content of the carboxylic acid are prepared under conditions whereby the co... | 06/14/1994 |
| 5310866 | Process for stretching a swollen flexible-chain polymer Process for stretching an article substantially consisting of a flexible-chain polymer, which is swollen in a solvent for that polymer, in which process an article substantially consisting of a copolymer of the polymer with a second polymer is swollen in ... | 05/10/1994 |
| 5296580 | Stretch packaging method employing multi-layer film A film for stretch packaging comprising as a substrate a film of a linear low density polyethylene having a melt flow rate (190° C.), as measured by an ASTM-D-1238E method, of 0.3 to 8 g/10 min., a density, as measured by an ASTM-D-1505 method, of 0.900 ... | 03/22/1994 |
| 5292865 | Process for preparation and after-treatment of polyester pellets Process for simultaneous removal of aldehyde, solid-phase postcondensation and drying of linear polyesters and copolyesters by after-treating the polyester pellets with a diffusion surface of 1.95 to 2.90 m2 /kg, an individual pellet weight of ... | 03/08/1994 |
| 5281692 | Elongated object made of a copolymer of carbon monoxide and an olefinically unsaturated monomer Elongated object, made of an orientated alternating copolymer of carbon monoxide and an olefinically unsaturated monomer, which has a modulus of elasticity of at least 16 GPa, and a method for the production of objects from an alternating copolymer, orien... | 01/25/1994 |
| 5070180 | Shrinkable copolyester film A shrinkable copolyester film having shrinkage of not less than 30% in the direction (main shrink direction) of either the machine direction or the transverse direction after 5 min treatment in an air oven at 100° C., a shrinkage of not more than 20% in ... | 12/03/1991 |
| 4996291 | Thermo-shrinkable polyester film A thermo-shrinkable polyester film of this invention is obtained from a composition that comprises acid components including terephthalic acid and glycol components including ethyleneglycol. The polyester film has a heat-shrinkage ratio of 30% or more in ... | 02/26/1991 |
| 4985538 | Shrinkable polyester film A shrinkable polyester film having a sufficient shrinkage, a sufficient resistance to solvent for printing ink, a shrinking property not to cause wrinkles, a warm water resistance sufficient for preventing wrinkles, slack and whitening is disclosed herein... | 01/15/1991 |
| 4952361 | Surface treatment of polyolefin objects The adhesion of highly oriented polyolefin objects, in particular polyethylene filaments, to e.g. polar, polymer matrices is improved by contacting the surface of the object with a solvent for 0.5-2 minutes at a temperature above the dissolution temperatu... | 08/28/1990 |
| 4939235 | Biaxially oriented ordered polybenzothiazole film This invention relates in general to the formation of thick films having a biaxial molecular orientation. Such films are prepared in accordance with the present invention from rod-like extended chain aromatic-heterocyclic ordered polymers. Such films have... | 07/03/1990 |
| 4868284 | Process for producing stretched molded articles of conjugated polymers and highly conductive compositions of said polymers A process for producing a stretched molded article of a conjugated polymer, hich comprises subjecting a polymer precursor having a repeating unit represented by the general formula (I) ##STR1## (wherein R1 is a group which forms a C--C conj... | 09/19/1989 |
| 4857247 | Method for drawing thermoplastic tubing The specification discloses a new method and apparatus for treating extruded TEFLON (fluoropolymer) tubing to significantly improve its dimensional and optical characteristics. Diameter tolerance is &#b1;0.0002, concentricity rises to 95%, and optical cla... | 08/15/1989 |
| 4802745 | Light-polarizing films A light-polarizing film is disclosed, comprising a conductive polymer having dichroism and having an unsaturated cyclic structure in the main chain thereof. The light-polarizing film of the invention has good polarization quality and is excellent in durab... | 02/07/1989 |
| 4791177 | Conjugated polymer film and pyrolyzed product thereof A high strength and modulus conjugated polymer film which comprises as its principal constitutive unit a conjugated polymer structure represented by the general formula: wherein R is an aromatic hydrocarbon group having 6 to 20 carbon atoms which forms a ... | 12/13/1988 |
| 4769433 | High strength polyolefins High strength, substantially linear, highly crystalline, high molecular weight-polyolefin shaped structure having a tenacity of greater than 15 g/den and an initial modulus of greater than 500 g/den by drawing never-processed polyolefin at a temperature o... | 09/06/1988 |
