Patents Examined by Umakant Rajguru
  • Patent number: 6720376
    Abstract: This invention relates to a thermoplastic elastomer composition which includes and comprises 10 to 60 parts by weight of a polyolefin (A), 30 to 87 parts by weight of a crosslinked rubber (B), 3 to 50 parts by weight of a softening agent (C) [the total amount of (A), (B) and (C) being 100 parts by weight] and 0.02 to 0.3 part by weight of a phenolic heat stabilizer (D) and which retains an elongation value at break by 80% or more, after aging for 500 hours in an air oven of 130° C., of the value before the aging; and relates to a manufacturing method thereof.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: April 13, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yuichi Itoh, Akira Uchiyama
  • Patent number: 6624225
    Abstract: This invention relates to a composition for repairing metallic articles which in its initial state is in the form of an adhesive, self-supporting putty, capable of being molded including 5-15% by weight of a sacrificial binder containing at least one acrylic resin and volatile solvent. The invention also relates to a kit for the composition and methods for repair.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: September 23, 2003
    Assignee: Liburdi Engineering Limited
    Inventors: Keith Ellison, Joseph Liburdi
  • Patent number: 5567759
    Abstract: Propylene polymer compositions of the present invention comprising a specific propylene block copolymer, specific ethylene-propylene copolymer rubber, specific ethylene-propylene-diene copolymer rubber, specific ethylene-butene-1 copolymer rubber, and talc in specific proportions are provided. The propylene polymer compositions of the invention are capable of providing therefrom molded products excellent in balance between stiffness and impact resistance, and having high surface hardness with excellent scratch resistance.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: October 22, 1996
    Assignees: Mitsui Petrochemical Industries, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Taniguchi, Akihiko Yamamoto, Takao Nomura, Takeyoshi Nishio, Hisayuki Iwai
  • Patent number: 5166252
    Abstract: A polymer blend comprising: a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon; b) a reinforcement material; and c) a thermoplastic polyurethane polymer. This polymer blend has and exhibits a good overall balance of physical properties including improved stiffness and heat resistance, and impact resistance and elongation at break over that of a polymer containing glass fibers alone. A process of preparing the polymer blend and articles of manufacture produced from the composition are also disclosed.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: November 24, 1992
    Assignee: Shell Oil Company
    Inventor: Eric R. George
  • Patent number: 5122551
    Abstract: A glass filled copolyether-polyester resin composition is provided exhibiting improved tensile and flexural strength as well as high impact strength. The improved properties are obtained by employing a glass fiber reinforcing agent comprising an epoxy functional cyanurate or isocyanurate. The compositions are useful for making molded fiber reinforced thermoplastic articles.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: June 16, 1992
    Assignee: General Electric Company
    Inventors: Robert R. Gallucci, Kelvin T. Okamoto
  • Patent number: 5118746
    Abstract: A composition stabilized against thermal crosslinking and consequent reduction of its melt index, comprising a uniform dispersion of antimony oxide in a blend of a matrix polymer which is a dipolymer of ethylene with an ethylenically unsaturated carboxylic acid or a terpolymer of ethylene with an ethylenically unsaturated carboxylic acid and with another ethylenically unsaturated comonomer, carbon dioxide or sulfur dioxide; an organo-halogen fire-retardant; and a stabilizing polymer which is a high melt index copolymer of ethylene with acrylic or methacrylic acid. Such compositions are useful as adhesive layers in laminates used in packaging and building construction.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: June 2, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Stewart C. Feinberg
  • Patent number: 5116903
    Abstract: A pigment dispersant that is useful in a cathodic electrocoating composition is prepared by bringing into contact compound (i), an alkylene carbonate, with a compound (ii) of the structure: ##STR1## where R is and alkyl group having 8-24 carbon atoms, and bringing the resulting reaction product of (i) and (ii) into contact with a half blocked organic diisocyanate; this pigment dispersant has an advantage of allowing for the maximization of pigment to binder ratios and the minimization of volatile organic content (VOC) in electrocoating compositions.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: May 26, 1992
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Taddesse Gebregiorgis
  • Patent number: 5115013
    Abstract: Aqueous dispersions of copolymers and/or graft copolymers composed of ethylenically unsaturated perfluoroalkyl monomers and perfluoroalkyl-free ethylenically unsaturated monomers can be prepared by polymerization in the presence of aqueous, emulsifier-free polyurethane dispersions as the graft base based on compounds containing perfluoroalkyl groups and active hydrogen atoms and compounds containing ionic and/or nonionic hydrophilic groups and active hydrogen atoms and polyisocyanates and can be used for the oil-repellent and water-repellent finishing of textiles, carpets, leather and paper.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: May 19, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jutta Rottger, Karl-Heinz Passon, Wolf-Dieter Schroer, Wilfried Kortmann, deceased