Patents Examined by W. E. Parker
  • Patent number: 4055518
    Abstract: A crosslinkable vinyl chloride resin composition, comprising; a vinyl chloride copolymer containing hydroxyl groups or a substituent convertible to hydroxyl groups in the copolymer, a polyisocyanate compound as a crosslinking agent and a heat stabilizer composed principally of a salt of a metal of Group IIa in the Periodic Table.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: October 25, 1977
    Assignee: Mitsubishi Monsanto Chemical Company
    Inventors: Haruaki Kakitani, Satoru Sugino
  • Patent number: 4045393
    Abstract: A latex paint composition has been prepared which contains in addition to its paint composition from 5 to 15% of a basic zinc phosphite composition and from 2 to 10% of a natural drying oil. This new latex paint composition is useful for preventing flash rust stains when used on metal surfaces.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: August 30, 1977
    Assignee: N L Industries, Inc.
    Inventors: Paul Krevenas, David Graeme Milne
  • Patent number: 4043955
    Abstract: There is disclosed a continuous method for agglomerating lactices of a polymer to provide large particles. An acid anhydride solution is continuously admixed with an aqueous latex of a polymer followed by passing the admixture through a conduit with laminar-flow wherein the passage-time through said conduit is sufficient to hydrolyze the acid anhydride and produce agglomeration of said particles providing an agglomerated admixture followed by continuously stabilizing said agglomerated admixture with an emulsifying material providing a stabilized agglomerated latex.
    Type: Grant
    Filed: February 20, 1975
    Date of Patent: August 23, 1977
    Assignee: Monsanto Company
    Inventor: Mark D. Paster
  • Patent number: 4029619
    Abstract: Vinyl chloride monomer is polymerized in aqueous medium under the influence of oil soluble polymerization initiators in the presence of alkali metal salts of higher fatty acid, higher alcohols and/or higher fatty acids, and hydroxides of alkali metals in certain amounts respectively, to produce vinyl chloride resin, stable for making resin/plasticizer pastes, mostly composed of particles having diameters lying between 0.1 and 2 microns. The resins are suitable for making resin/plasticizer pastes that have a low initial viscosity, little change in viscosities during storage, good thermal stability and excellent degassing property. Reduced deposition of polymer scales on the walls of the polymerization vessels was successful.
    Type: Grant
    Filed: December 5, 1972
    Date of Patent: June 14, 1977
    Assignee: Shinetsu Chemical Company
    Inventors: Shigenobu Tajima, Kazuhiko Kurimoto
  • Patent number: 4024095
    Abstract: The subject of the present invention is a process for the manufacture of heat-curable synthetic resins, based on reaction products of maleic anhydride with mixtures of polybutadiene, unsaturated hydrocarbon resins and unsaturated fatty acid glyceride esters, which can be diluted with water and are suitable for the electrophoretic coating process.
    Type: Grant
    Filed: January 29, 1975
    Date of Patent: May 17, 1977
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Bernhard Broecker, Richard Schardt
  • Patent number: 4020029
    Abstract: A normally inert coating composition activatable under heat and pressure to form a tacky film and adapted for application to gripping handles of hand-held instruments and comprising a combination of two or more plastic resinous substances, each of which individually forms a continuous film at room temperature. At least one of the resins has a softening point (Ring & Ball) between about 55.degree.-75.degree. C., and at least one of the resins has a higher softening point of between about 90.degree.-120.degree. C. For application, the resins are retained in a solvent solution capable of forming a clear continuous coating which, when pressed or rubbed lightly with hand pressure, will appear smooth and tack-free, but when subjected to body temperature heat and hand pressure, will become tacky. When heat and pressure is removed, the coating will revert to its non-tacky, normally inert state.
    Type: Grant
    Filed: October 1, 1975
    Date of Patent: April 26, 1977
    Assignee: PDI, Inc.
    Inventor: Walter Gorbunow
  • Patent number: 4009131
    Abstract: Solid compositions comprising (A) a solid addition polymer containing units derived from at least one of acrylic or methacrylic acids and esters threof and from at least one epoxyalkyl ester or ether, and (B) aliphatic polycarboxylic acids (either monomeric or polymeric) having a first acidic dissociation constant no greater than 10.sup..sup.-3, optionally in combination with a pigment and other known additives, are useful for coating metal surfaces, preferably by electrostatic powder coating methods. The coatings produced from these compositions are suitable as automobile body and wheel coatings.
    Type: Grant
    Filed: October 2, 1972
    Date of Patent: February 22, 1977
    Assignee: The Lubrizol Corporation
    Inventor: Eugene Richard Farone
  • Patent number: 4007145
    Abstract: Long-chain fatty acids having conjugated unsaturation, such as tung acid, when used as emulsifiers in the polymerization of chloroprene, produce polymers having higher tensile strength than produced by similar unconjugated fatty acid emulsifiers.
    Type: Grant
    Filed: January 10, 1975
    Date of Patent: February 8, 1977
    Assignee: Petro-Tex Chemical Corporation
    Inventor: Morris S. Edmondson
  • Patent number: 4002585
    Abstract: Printing ink binders comprising a reaction product of (a) rosin, (b) .alpha.,.beta.-ethylenically unsaturated carboxylic acid-modified petroleum resin, (c) resol type phenolformaldehyde pre-condensate and (d) polyhydric alcohol, which have an acid value of not more than 30, a softening point of not less than 140.degree. C., a viscosity of a 33% by weight linseed oil solution of not less than Y by Gardner-Holdt bubble viscometer at 25.degree. C. and a tolerance to high-boiling aliphatic hydrocarbon of not less than 5. The reaction products have high softening point and high solubility to solvents, and are useful as binder resins for printing ink. The reaction products in the presence of cyclopentadiene polymer also provide excellent ink binders which have a higher softening point.
    Type: Grant
    Filed: November 7, 1975
    Date of Patent: January 11, 1977
    Assignee: Arakawa Rinsan Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshio Oishi, Satoru Yoshimoto, Hiroshi Sasaki
  • Patent number: 4001173
    Abstract: A process for producing vinyl polymers involving polymerization of vinyl monomers in the presence of polyarylenealkylenes of the formula: ##STR1## WHEREIN Ar.sub.1 and Ar.sub.2 are ##STR2## m + n + 2 to 30, k = 1 or 2, at k = 1 Ar.sub.1 and Ar.sub.2 are also ##STR3## where X is H, a C.sub.1 -C.sub.4 alkyl, or in the presence of hydroperoxides of said polyarylenealkylenes; said polyarylenealkylenes or hydroperoxides thereof are used in an amount ranging from 0.01 to 15% by weight of the starting vinyl monomers. The process of the present invention makes it possible to obtain vinyl polymers featuring an enhanced heat-resistance and, in some cases, improved mechanical and electrical properties.
    Type: Grant
    Filed: January 22, 1975
    Date of Patent: January 4, 1977
    Inventors: Alexandr Evgenievich Chuchin, Leonid Leonidovich Proskurin, Irina Jurievna Kalnova, Vladimir Viktorovich Rozhkov
  • Patent number: 3989657
    Abstract: The incorporation of a metal salt of a fatty acid and/or organic sulfonic acid into a polybutadiene resin greatly enhances the resistance thereof to thermoxidative deterioration.
    Type: Grant
    Filed: November 13, 1972
    Date of Patent: November 2, 1976
    Assignee: The Firestone Tire & Rubber Company
    Inventors: Delmar F. Lohr, Jr., Edward Leo Kay
  • Patent number: 3965060
    Abstract: An adhesive composition consisting essentially of a styrene-butadiene block copolymer, a tackifier, a zinc salt of rosin and a hydrocarbon solvent. In a preferred embodiment the composition also contains a small amount of water.
    Type: Grant
    Filed: December 26, 1974
    Date of Patent: June 22, 1976
    Assignee: Gulf Research & Development Company
    Inventor: Pallavoor R. Lakshmanan
  • Patent number: 3950286
    Abstract: A process of making water-soluble coating compositions is described characterized in that (A) an adduct of an alpha-beta ethylenically unsaturated dicarboxylic acid or anhydride with olefinic, unaltered or polymerized, oil fatty acids, or mixtures of such acids with other unsaturated carboxylic acids or natural esters thereof, or hydroxy-free polyol esters thereof; (B) a polyhydroxy compound; and (C) a water-insoluble, hardenable phenol-aldehyde condensation product of a phenol substituted in the ortho- or para-position with an alkyl radical having at least three carbon atoms, are combined at an elevated temperature to form a homogeneous resinous body; and the resin thereafter made water-soluble through the addition of a water-soluble nitrogen base. The water-soluble coating compositions are particularly useful for electrodeposition providing films having improved surface characteristics and corrosion resistance.
    Type: Grant
    Filed: July 16, 1970
    Date of Patent: April 13, 1976
    Assignee: Vianova Kunstharz, A.G.
    Inventors: Herbert Hoenel, Heinrich Lackner
  • Patent number: 3947393
    Abstract: A resin composition for laminates excellent in water resistance, electrical properties, mechanical strength, punchability and heat resistance is obtained by blending a drying oil-modified-resol type phenolic resin and a resol type water soluble phenolic resin with a drying oil-phenols-modified mesitylene-formaldehyde resin.
    Type: Grant
    Filed: July 29, 1974
    Date of Patent: March 30, 1976
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Shunichi Sato, Mineaki Tanigaichi, Kazuyoshi Iwasawa
  • Patent number: 3943117
    Abstract: A process is disclosed for saponifying tall oil pitch. The process involves saponifying tall oil pitch in an aqueous solution having a solids content of 5% to 99% with at least 0.00026% by weight of a water-soluble cationic amine catalyst and a slight amount more of a saponifying agent than is required to form soaps from the free acid present in the pitch at a temperature above 50.degree.C. to free the fatty acid soaps and rosin acid soaps from their esters.
    Type: Grant
    Filed: December 2, 1974
    Date of Patent: March 9, 1976
    Assignee: Westvaco Corporation
    Inventor: Carlton G. Force
  • Patent number: 3935143
    Abstract: An ABS resin composition is disclosed, adapted for rotational molding (rotocasting), which comprises an ABS resin of from minus 10 to plus 100 mesh size particles having uniformly dispersed and adhered to the surface of the particles an organic compound of a particle size of minus 100 mesh having a melting point of 100.degree.C to 250.degree.C and a decomposition point above 200.degree.C, the weight ratio of resin to organic compound being 100 to 0.1 - 5.0.
    Type: Grant
    Filed: April 16, 1973
    Date of Patent: January 27, 1976
    Assignee: Daicel Ltd.
    Inventors: Sakae Takahashi, Shiro Saeki, Yoshio Onisawa