Patents Examined by Patricia A. Short
  • Patent number: 6852807
    Abstract: There are provided a biodegradable and hydrolyzable resin composition having good physical properties such as tensile strength and elongation and a resin having widespread applications as wastebag films and food packaging films.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: February 8, 2005
    Assignee: Hyo Sig Jung
    Inventors: Jung Hwan Choi, Byung Doo Ahn
  • Patent number: 6844073
    Abstract: A hot melt moisture cure polyurethane adhesive composition includes at least one polyurethane prepolymer. The prepolymer includes the reaction product of a polyol component and a polyisocyanate component. The polyol component includes a) at least one amorphous polyester polyol comprising the reaction product of neopentyl glycol, hexanediol and at least one of phthalic anhydride and phthalic acid; b) at least one liquid polyester polyol having a viscosity of greater than about 10,000 cps at 80° C.; c) at least one crystalline polyester polyol having a melting point of from about 40° C. to about 120° C.; and d) at least one thermoplastic polyurethane.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: January 18, 2005
    Assignee: H. B. Fuller Licensing & Financing Inc.
    Inventors: Marietta B. Helmeke, Jorge A. Lavieri
  • Patent number: 6838516
    Abstract: The present invention relates to a water dispersible polyisocyanate composition comprising (a) an aliphatic polyisocyanate or a mixture of aliphatic polyisocyanates or a mixture of aliphatic polyisocyanates with other polyisocyanates; and (b) a reaction product of component (a) with a component selected from the group consisting of: (ii) a polyether diol or triol or a mixture thereof wherein a weight ratio of ethylene oxide (EO) to propylene oxide (PO) of the polyether diol and triol is greater than about 60:40, and the polyether diol has a molecular weight of about 300 to 1600 g/mole, and the polyether triol has a molecular weight of about 450 to 2400 g/mole; and (ii) a mixture of polyether monol and polyether polyol, wherein the polyether polyol is selected from the group consisting of polyether diol, triol and a mixture thereof wherein a weight ratio of EO to PO of the polyether monol, diol and triol is greater than about 60:40, and the polyether diol and triol have the molecular weights as defined abo
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: January 4, 2005
    Assignee: Great Eastern Resins Industrial Co., Ltd.
    Inventors: Shenghong A. Dai, Jui-Ming Chang, Tsai-Lung Chen, Will Yang
  • Patent number: 6830792
    Abstract: Provided is a thermoplastic resin structure formed of a resin composition that comprises substantially (a) from 5 to 80% by volume of a polyolefin resin and (b) from 20 to 95% by volume of a polyphenylene sulfide resin, which is characterized in that, in morphology therein seen through electronic microscopy, the polyphenylene sulfide resin (b) forms a matrix phase (continuous phase) and the polyolefin resin (a) forms a disperse phase. The thermoplastic resin structure gives plastic containers, tubes and their Attached parts having good barrier properties, strength, durability and workability.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: December 14, 2004
    Assignee: Toray Industries, Inc.
    Inventors: Hideo Matsuoka, Mitsushige Hamaguchi, Kazuhiko Kobayashi, Akira Todo, Taku Koda
  • Patent number: 6825274
    Abstract: The present invention provides melt processable, bleach resistant durable fibers having an elastic recovery above 50% after extension to 160% elongation and a stress relaxation below 50% after extension to 150% for 30 minuets which are formed from a soft polyurethane elastomer. This elastomer is comprised of (a) from 75 to 90% weight of a polydiene diol having up to about two terminal hydroxyl groups per molecule and a number average molecular weight between 500 and 20,000, (b) from 9 to 25% weight of a diisocyanate, and (c) from 0.8% to 5% weight of a chain extender which is a low molecular weight aliphatic diol, or a mixture of the low molecular weight aliphatic diol and from 0.1 to 4.0 mol % of a diamine wherein the hard segment content of the polyurethane elastomer is from about 10 to about 30% weight. The present invention further provides a polyurethane elastomer.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: November 30, 2004
    Assignee: KRATON Polymers U.S. LLC
    Inventors: Lie Khong Djiauw, Michael A. Masse
  • Patent number: 6815499
    Abstract: An object of the present invention is to substantially improve the compatibility between a radical copolymerizable unsaturated resin and an addition polymerized polymer (thermoplastic resin) which is added for the purpose of low profile and improvement of physical properties. The present invention provides a compatibilizing agent for compatibilizing a radical copolymerizable unsaturated resin with an addition polymerized polymer, characterized in that said compatibilizing agent is a graft copolymer (A) which contains a styrene monomer as a principal component, and has a principal chain (A1) consisting of a copolymer with a (meth)acrylate monomer and a side chain (A2) selected from a ring-opening polymerized polyether side chain consisting of a polyoxyalkylene ether, a polyester side chain, and a polycarbonate side chain, the side chain (A2) being bonded to the principal chain.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: November 9, 2004
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Takashi Yasumura, Akira Takano
  • Patent number: 6812276
    Abstract: A thermosetting composition comprises a capped poly(arylene ether), an alkenyl aromatic monomer, and an alkoxylated acryloyl monomer. The composition provides good flow properties and fast curing rates. After curing, the composition exhibits good stiffness, toughness, and heat resistance.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: November 2, 2004
    Assignee: General Electric Company
    Inventor: Gary William Yeager
  • Patent number: 6809159
    Abstract: High flow polyphenylene ether formulations are obtained with the addition of dendritic polymers. High flow is also obtained with the addition of dendritic polymers to flame retardant polyphenylene ether formulations.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: October 26, 2004
    Assignee: General Electric Company
    Inventor: Adeyinka Adedeji
  • Patent number: 6806312
    Abstract: The invention is to provide a thermoplastic resin composition rich in heat resistance, oil resistance, and thermal aging resistance and excellent in tensile elongation characteristics, by adding a specific partially hydrogenated block copolymer to a styrene resin and/or poly(phenylene ether) resin and an olefin resin.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: October 19, 2004
    Assignee: Asahu Kasei Kabushiki Kaisha
    Inventors: Masahiro Sasagawa, Katsumi Suzuki, Toshikazu Hoshina
  • Patent number: 6797788
    Abstract: The invention concerns thermoplastic aliphatic polyester compositions characterized by a melt flow index (RMFI) ranging between 1.1 and 2.5. The invention also concerns a method for preparing said compositions which are used for making films, foams, flasks or thermoformed products. The resulting films obtained from said compositions are used for making litter bags, films for agricultural use, packaging films, shrouds, diaper drawers and adhesive films.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: September 28, 2004
    Assignee: SOLVAY (Societe Anonyme)
    Inventors: Ivan Claeys, Henri Wautier, Dino Manfredi
  • Patent number: 6796958
    Abstract: A combination of polymeric components provides desired characteristics in forming medical instruments such as catheters and balloons for dilatation catheters. For example, a balloon material is formed from a blend of polymeric components, including a first crystalline polymeric component and a second softening polymeric component. Where the first two components are generally incompatible, the balloon material can also include a third compatibilizing agent to facilitate blending the first two polymeric components together.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: September 28, 2004
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Ziyun Chen, Tai Cheng, Ketan Muni, Udayan Patel, Robert Saltman
  • Patent number: 6797780
    Abstract: The invention relates to rubber compounds based on rubber particles and phosphoryl polysulfides, as well as to vulcanizates or shaped articles prepared therefrom. The addition of phosphoryl polysulfides improves the strengthening effect of the rubber particles and the level of the mechanical properties, without lowering the resilience of the vulcanizates prepared therefrom.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: September 28, 2004
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Werner Obrecht, Winfried Jeske, Thomas Früh, Ludger Heiliger
  • Patent number: 6797107
    Abstract: A solid cyanoacrylate adhesive composition is disclosed which can be applied to a substrate in solid form and which polymerizes into an adhesive polymer upon liquefying. Preferably the solid cyanoacrylate composition liquefies at temperatures slightly above room temperature and polymerizes upon liquification. &egr;-caprolactones are used as a solidifying polymer with cyanoacrylate monomers and other additives to form the solid cyanoacrylate adhesive composition. The solid cyanoacrylate adhesive composition is easy to apply, especially stable in solid form and is capable of use in a variety of industrial, consumer and medical applications.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: September 28, 2004
    Assignee: Chemence, Inc.
    Inventor: Dimiter L. Kotzey
  • Patent number: 6794450
    Abstract: A thermoplastic composition comprises a compatibilized poly(arylene ether)/polyamide resin blend and a dendritic polyester resin.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: September 21, 2004
    Assignee: General Electric Company
    Inventor: Adeyinka Adedeji
  • Patent number: 6794049
    Abstract: Acetoacetate-functional alkyd resins are disclosed, as are compositions including such resins in combination with at least one drier and an organic solvent. The acetoacetate-functional alkyd resin described is the reaction product of an alkyd resin with an alkyl acetoacetate. Also disclosed are methods of preparing such compositions, and uses for such compositions.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: September 21, 2004
    Assignee: Eastman Chemical Company
    Inventors: Thauming Kuo, Paul Vincent Grosso, Gary Eugene Spilman, Mark Dwight Clark
  • Patent number: 6790499
    Abstract: A mixture of a polyester, such as poly(ethylene terephthalate) PET, and an additive combination, when extrusion compounded exhibits a lower residual acetaldehyde content than does PET alone when similarly treated. The additive combination comprises compounds selected from at least two groups wherein the groups are (i.) poly(vinyl alcohol) or ethylene/vinyl alcohol copolymer, (ii.) polyhydric alcohols and (iii.) polyacrylamide, polymethacrylamide or copolymer of acrylamide or methacrylamide. The invention pertains to any polyester used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, beverages and most especially water.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: September 14, 2004
    Assignee: Ciba Speicalty Chemicals Corporation
    Inventors: Stephen M Andrews, Paul A. Odorisio, Dirk Simon
  • Patent number: 6787613
    Abstract: The invention relates to a mixture of biodegradable polyesters which includes an aromatic-aliphatic polyester (A), an aliphatic polyester (B) and a polyactic acid polymer (C) in which the concentration of A varies, with respect to (A+B) in the range between 40 and 70% by weight, and the concentration of C with respect to (A+B+C) is of between 6 and 30% by weight.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: September 7, 2004
    Assignee: Novamont S.p.A.
    Inventors: Catia Bastioli, Gianfranco Del Tredici, Italo Guanella, Roberto Ponti
  • Patent number: 6780523
    Abstract: A waterborne acetoacetate-functionalized alkyd coating composition is disclosed which includes an acetoacetate-functionalized alkyd resin, at least one drier, and water. The acetoacetate-functionalized alkyd resin is the reaction product of (i) an alkyd resin, and (ii) an alkyl acetoacetate. Also disclosed is a method of preparing a waterborne acetoacetate-functionalized alkyd coating composition which includes the step of contacting an acetoacetate-functionalized alkyd resin with at least one drier in the presence of water.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: August 24, 2004
    Assignee: Eastman Chemical Company
    Inventors: Thauming Kuo, Paul Vincent Grosso, Gary Eugene Spilman, Mark Dwight Clark
  • Patent number: 6780482
    Abstract: A polyester film for metal sheet laminating. The film comprises a blend of (I) polybutylene terephthalate or a polyester comprising it as the main ingredient with (II) polyethylene terephthalte or a polyester comprising it as the main ingredient, the contents of the polyester (I) and the polyester (II) being 80 to 40 wt % and 20 to 60 wt %, respectively. This film has a melting point of 200 to 223° C. attributable to the polyester (I) and a melting point of 230 to 256° C. attributable to the polyester (II). The film as a whole has an intrinsic viscosity of 0.75 or higher.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: August 24, 2004
    Assignee: Unitika Ltd.
    Inventors: Shigemi Majima, Mikio Kusunoki, Akira Menju, Yukiko Inui, Norikazu Matsui, Masanobu Hioki
  • Patent number: 6777496
    Abstract: We have developed a process and product which provide thermoplastic articles featuring a permanent outer surface which has selectively varied chemical functionality while maintaining the inherent mechanical properties of the base fiber.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: August 17, 2004
    Assignee: Honeywell International Inc.
    Inventors: Kundan M. Patel, Charles Jay Nelson, Frank Mares, Conor Twomey, Yousef Mohajer