Patents Examined by Helen F. Lee
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Patent number: 5840793Abstract: Disclosed are thermoplastic resin compositions having improved heat resistance, e.g., IR soldering and HDT; increased ductility and flowability; and reduced flash. In particular, the thermoplastic resin compositions have at least one high heat amorphous resin, at least one polysulfide; and, optionally, at least one reinforcing filler and/or at least one polyolefin and/or at least one polyolefin compound and/or at least one polyepoxy compound. The high heat amorphous resin is preferably a polyetherimide and the polyolefin is preferably a high crystalline polyethylene. The compositions of the invention are particularly well suited for preparing no flash high heat electrical connectors.Type: GrantFiled: August 9, 1994Date of Patent: November 24, 1998Assignee: General Electric CompanyInventors: Raymond H. Glaser, Darryl Nazareth, Jerry Jan-nan Yang
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Patent number: 5625002Abstract: Disclosed are a polyphenylene sulfide composition having excellent impact characteristics, melt flow characteristics and flexibility which comprises, as indispensable components, (A) a polyphenylene sulfide, (B) an epoxy group-containing olefinic polymer, and (C) at least one elastomer selected from ethylene/propylene copolymers, ethylene/butene copolymers, ethylene/propylene/diene copolymers, hydrogenated styrene/butadiene/styrene block copolymers, copolymers of ethylene with a monomer selected from acrylic acid, methacrylic acid and alkyl esters and metal salts thereof, and polyamide elastomers; and a shaped article made from the polyphenylene sulfide composition.Type: GrantFiled: March 27, 1995Date of Patent: April 29, 1997Assignee: Toray Industries, Inc.Inventors: Sho Kadoi, Norio Shimasaki, Kazuhiko Kobayashi, Katuya Ohno
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Patent number: 5618870Abstract: It is herein disclosed a polymer blend having and exhibiting excellent tribological properties comprising a major amount of polyketone polymers and a minor amount of one or more silicone oil. The blend also has and exhibits improved lubricity and has a low DCOF of from about 0.3-0.4. The blend is particularly useful in the manufacture of articles used in applications where surfaces are in contact during motion.Type: GrantFiled: March 23, 1995Date of Patent: April 8, 1997Assignee: Shell Oil CompanyInventors: John E. Flood, John W. Kelley, Davis R. Roane, John M. Clasby
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Patent number: 5610223Abstract: The impact strength of a thermoplastic molding composition containing polyamide resin is improved upon the incorporation therewith of a particular silicone rubber powder. The silicone rubber powder, added at a level of about 1 to 25 percent contains a mixture of (a) a polydiorganosiloxane and (b) finely divided silica filler.Type: GrantFiled: July 13, 1995Date of Patent: March 11, 1997Assignee: Bayer CorporationInventor: James P. Mason
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Patent number: 5610261Abstract: High compressive strength, three-dimensional para-oriented benzobisoxazole polymers of the formula: ##STR1## wherein Q is ##STR2## and wherein Z represents repeating units of the formula: ##STR3##Type: GrantFiled: June 30, 1995Date of Patent: March 11, 1997Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: My Dotrong, Minhhoa Dotrong, Robert C. Evers
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Patent number: 5587435Abstract: A block copolymer resin containing structural units conforming to ##STR1## and a method for its preparation are disclosed. Accordingly, the block copolymer is prepared by reactive blending of an ester-containing polyether sulfone with a polyester. The block copolymer resin thus produced is characterized by its homogeneous morphology. The high level of its mechanical properties makes the resin suitable for a variety of applications.Type: GrantFiled: April 21, 1995Date of Patent: December 24, 1996Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: Aaron D. Meltzer, Alexander Karbach
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Polyurethane resin, process for preparing the same and printing ink for laminate containing the same
Patent number: 5556925Abstract: Disclosed is a polyurethane resin which is a reaction product of a high molecular weight polyol compound having a molecular weight of 3,000 to 10,000, a low molecular weight polyol compound having a molecular weight of not more than 200, an organic diisocyanate compound, a chain extender, and optionally a reaction terminating agent, wherein the whole of the high molecular weight polyol compound and the low molecular weight polyol compound has an average molecular weight of 1,500 to 2,700; the isocyanate index (I.I.) of the organic diisocyanate compound to the high molecular weight polyol compound satisfies the following condition: I.I.>2.0; and the nitrogen content of the polyurethane resin derived from the isocyanate group of the organic diisocyanate compound is from 1.30 to 1.95% by weight.Type: GrantFiled: December 20, 1993Date of Patent: September 17, 1996Assignee: Sakata Inx CorporationInventors: Katsumi Kousaka, Takahiko Inoue, Takahito Miyamoto -
Patent number: 5554723Abstract: A process for the production of a poly(arylene thioether) containing phthalic anhydride groups wherein a dihalogen-substituted aromatic compound is reacted with an alkali metal sulfide in a polar organic solvent containing water to produce the poly(arylene thioether) is disclosed. This process comprises causing a monohalogen-substituted phthalic compound to exist in a polymerization reaction system, and controlling a ratio, a/b of the number of moles, a of the charged dihalogen-substituted aromatic compound to the number of moles, b of the charged alkali metal sulfide within a range of 0.8<a/b<1.Type: GrantFiled: March 19, 1993Date of Patent: September 10, 1996Assignee: Kureha Kagaku Kogyo K.K.Inventors: Naomitsu Nishihata, Shunzo Endo, Yukio Ichikawa, Takayuki Katto
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Patent number: 5545686Abstract: This invention discloses a rubber composition having a high modulus and excellent processability which is comprised of a blend of (1) at least one elastomer selected from the group consisting of polybutadiene rubber, styrene-butadiene rubber, synthetic polyisoprene rubber, natural rubber, isoprene-butadiene rubber, isoprene-butadiene-styrene rubber, nitrile rubber, carboxylated nitrile rubber, and EPDM rubber, (2) at least one thermotropic liquid crystalline polymer containing an aliphatic spacer, wherein the thermotropic liquid crystalline polymer exhibits no apparent crystalline to nematic transition, wherein the thermotropic liquid crystalline polymer exhibits nematic order above its glass transition temperature, and wherein the glass transition temperature of the thermotropic liquid crystalline polymer is within the range of 20.degree. C. to 180.degree. C., and (3) carbon black.Type: GrantFiled: October 3, 1994Date of Patent: August 13, 1996Assignee: The Goodyear Tire & Rubber CompanyInventors: John D. Carter, Richard R. Smith
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Patent number: 5545714Abstract: A process for preparing an organic disulfide polymer such as polyethylene disulfide which is used in batteries comprises contacting a dimercaptan such as 1,2-ethanedithiol with elemental sulfur using a mixture of a basic compound such as NaOH and an ethoxylated alcohol such as Union Carbide's TERGITOL.RTM. 15-S-7 having the formula of R.sup.2 O(CH.sub.2 CH.sub.2 O).sub.7 H as catalyst wherein the dimercaptan is present in excess amount to effect the preparation of the disulfide polymer.Type: GrantFiled: May 25, 1995Date of Patent: August 13, 1996Assignee: Phillips Petroleum CompanyInventors: James E. Shaw, William E. Sattich, Howard F. Efner
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Patent number: 5540984Abstract: A method of durably rendering a polymeric fabric, e.g., a polyolefin fabric, wettable and resistant to protein adsorption. The method involves providing a polymeric fabric having a surface, applying to the surface of the polymeric fabric a composition which includes water and a surfactant adapted to durably render the polymeric fabric resistant to protein adsorption, and drying the polymeric fabric. The surfactant has a solubility in water at 20.degree. C. no greater than about 5 percent by weight, based on the weight of the water, and is present on the polymeric fabric in an amount of the surfactant sufficient to reduce the adsorption of the protein by the fabric. The coated fabric not only exhibits durable reduced adsorption of protein but also has durable wettability by aqueous liquids.Type: GrantFiled: March 20, 1995Date of Patent: July 30, 1996Assignee: Kimberly-Clark CorporationInventors: Roger B. Quincy, III, Ronald S. Nohr, John G. MacDonald, Elizabeth D. Gadsby, Dennis S. Everhart
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Patent number: 5541243Abstract: A thermoplastic resin composition comprising (a) a polyphenylene sulfide resin, (b) a polyphenylene ether resin, (c) a specific organophosphorus compound, and (d) a basic compound is disclosed. The composition exhibits improved compatibility between resinous components (a) and (b) and therefore provides a molded article having high mechanical strength and excellent appearance.Type: GrantFiled: June 30, 1994Date of Patent: July 30, 1996Assignee: Mitsubishi Chemical CorporationInventors: Haruo Ohmura, Tomohiko Tanaka
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Patent number: 5525415Abstract: A method of durably rendering a polymeric fabric, e.g., a polyolefin fabric, wettable and resistant to protein adsorption. The method involves providing a polymeric fabric having a surface, applying to the surface of the polymeric fabric a composition which includes water and a surfactant adapted to durably render the polymeric fabric resistant to protein adsorption, and drying the polymeric fabric. The surfactant has a solubility in water at 20.degree. C. no greater than about 5 percent by weight, based on the weight of the water, and is present on the polymeric fabric in an amount of the surfactant sufficient to reduce the adsorption of the protein by the fabric. The coated fabric not only exhibits durable reduced adsorption of protein but also has durable wettability by aqueous liquids.Type: GrantFiled: March 20, 1995Date of Patent: June 11, 1996Assignee: Kimberly Clark CorporationInventors: Roger B. Quincy, III, Ronald S. Nohr, John G. MacDonald, Elizabeth D. Gadsby, Dennis S. Everhart
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Patent number: 5520980Abstract: There is provided a protective barrier apparel fabric comprised of an at least three layer laminate. The first layer being of elastomeric meltblown thermoplastic polymer web, the second layer of a liquid impermeable film and the third layer of liquid permeable material, where the layers are bonded together. The elastomeric meltblown layer may be stitchbonded prior to incorporation into the laminate and/or may be saturated with a latex composition prior to incorporation into the laminate. The laminate provides good MVTR and protection against blood strikethrough.Type: GrantFiled: January 31, 1994Date of Patent: May 28, 1996Assignee: Kimberly-Clark CorporationInventors: Linda J. Morgan, Robert D. Harris, Jr.
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Patent number: 5502102Abstract: A thermoplastic resin composition is provided which contains polyetherimide resin, poly(arylene sulfide) resin, an epoxy compound and, optionally, glass fibers. The composition exhibits enhanced physical properties, specifically enhanced ductility and flash resistance. The composition is useful for making molded articles exhibiting desired physical properties.Type: GrantFiled: August 9, 1994Date of Patent: March 26, 1996Assignee: General Electric CompanyInventor: Darryl Nazareth
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Patent number: 5500479Abstract: A block copolymer resin containing structural units conforming to ##STR1## and a method for its preparation are disclosed. Accordingly, the block copolymer is prepared by reactive blending of an ester-containing polyether sulfone with a polyester. The block copolymer resin thus produced is characterized by its homogeneous morphology. The high level of its mechanical properties makes the resin suitable for a variety of applications.Type: GrantFiled: September 23, 1994Date of Patent: March 19, 1996Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: Aaron D. Meltzer, Alexander Karbach
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Patent number: 5500254Abstract: A method of durably rendering a polymeric fabric, e.g., a polyolefin fabric, wettable and resistant to protein adsorption. The method involves providing a polymeric fabric having a surface, applying to the surface of the polymeric fabric a composition which includes water and a surfactant adapted to durably render the polymeric fabric resistant to protein adsorption, and drying the polymeric fabric. The surfactant has a solubility in water at 20.degree. C. no greater than about 5 percent by weight, based on the weight of the water, and is present on the polymeric fabric in an amount of the surfactant sufficient to reduce the adsorption of the protein by the fabric. The coated fabric not only exhibits durable reduced adsorption of protein but also has durable wettability by aqueous liquids.Type: GrantFiled: December 21, 1993Date of Patent: March 19, 1996Assignee: Kimberly-Clark CorporationInventors: Roger B. Quincy, III, Ronald S. Nohr, John G. MacDonald, Elizaeth D. Gadsby, Dennis S. Everhart
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Patent number: 5488084Abstract: Disclosed is a polyphenylene sulfide resin composition having a superior heat resistance and impact resistance obtained by melt-kneading a modified polyphenylene sulfide resin obtained by reacting a polyphenylene sulfide resin with a carboxylic acid anhydride, with at least one thermoplastic resin selected from a polyamide resin, a polyester resin, a polycarbonate resin, a polysulfone resin, and a polyamide-imide resin.Type: GrantFiled: December 14, 1993Date of Patent: January 30, 1996Assignee: Toray Industries, Inc.Inventors: Sho Kadoi, Hidemi Yabe, Kazuhiko Kobayashi
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Patent number: 5484851Abstract: A mixed block copolymer of the A-B type is prepared. The A block of the block copolymer is formed by the polymerization of compounds having vinyl groups and the B block of which is a polyoxyalkylene block, obtainable by polymerizing, first of all, monomers having vinyl groups at temperatures of 60.degree. to 150.degree. C. by a free radical mechanism in the presence of sufficient amounts of an initiator and an amount, which corresponds to the desired chain length, of a chain-length regulator, which carries, aside from a mercapto group, a further functional group having at least one active hydrogen and adding alkylene oxide, optionally in the presence of a known addition reaction catalyst, in an addition reaction at 20.degree. to 180.degree. C. onto the polymer so modified, until the desired molecular weight of block B is reached.Type: GrantFiled: December 22, 1993Date of Patent: January 16, 1996Assignee: Th. Goldschmidt AGInventor: Jurgen Fock
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Patent number: 5484872Abstract: The present invention provides a cyclic sulfide compound represented by a general formula (I) ##STR1## (where R.sup.1 represents --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --O--CH.sub.2 --, --CH.sub.2 --O--, or --CH.sub.2 --S--). According to this invention, a novel cyclic sulfide compound which gives high refractive index and high Abbe number can be obtained. The polymerizable compositions for manufacturing optical products with this compound as their main component can be readily molded into plastic lenses which give superhigh refractive indices and high Abbe numbers or those which give high refractive indices and high Abbe number with low sp.grs. in addition thereto. The castings obtained from said polymerizable compositions are useful as plastic lenses for glasses, manifesting optical uniformity and being excellent in processability, transparency, and thermal, impact and light resistance.Type: GrantFiled: March 14, 1995Date of Patent: January 16, 1996Assignee: Daiso Co., Ltd.Inventors: Hiroyuki Kanesaki, Tetsuyuki Saika, Masafumi Mikami