Patents Examined by Lewis T. Jacobs
  • Process for the surface modification of minerals in a reactive atmosphere
    Patent number: 4900767
    Abstract: A method of producing a mineral such as calcium carbonate, glass fibers and layered lattice silicates which is surface modified with an organic material wherein said mineral in substantially dry, particulate form is contacted with an organic monomer, co-monomers or a prepolymer, and surface polymerization or reaction in situ on the mineral is carried out in the presence of gaseous carbon monoxide.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: February 13, 1990
    Assignee: E.C.C. America Inc.
    Inventor: Camilla A. Rice
  • Ultraviolet radiation curable vehicles
    Patent number: 4900763
    Abstract: Vehicles for ultraviolet radiation-curable ceramic enamels comprising (a) acrylate- or methacrylate- modified oligomers; (b) monofunctional acrylate- or methacrylate-modified monomers; (c) pentafunctional acrylate or methacrylate-modified monomers; and (d) a photoinitiator system for said polymerizable components; and the enamels prepared therefrom comprising glass enamels and the vehicles as described.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: February 13, 1990
    Assignee: Ciba-Geigy Corporation
    Inventor: Douglas J. Kraushaar
  • Polymer-densified fillers
    Patent number: 4898898
    Abstract: A method for providing polymer-densified fillers consisting essentially of mixing 100 parts of a silicone polymer with 50 to 500 parts of reinforcing filler or 400 to 5000 parts of extending filler and mixing such blend for an amount of time effective for providing a dense, free-flowing particulate mixture.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: February 6, 1990
    Assignee: General Electric Company
    Inventors: Thomas H. Fitzgerald, John S. Razzano, Todd R. Stegman
  • Method to modify poly(aryle sulfide) resins
    Patent number: 4898904
    Abstract: Poly(arylene sulfide) resins are modified by melt mixing a resin with a basic additive to form a resin product composition. The basic additive is selected from the group consisting of inorganic hydroxides, inorganic oxides and organic metal salts wherein the metals are from Group IA, IIA, or IIB and the salts are of carboxylic acids and phenols. The product compositions are suitable for injection molding, film forming and fiber spinning processes.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: February 6, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Michael C. Yu, Lacey E. Scoggins, Jerry O. Reed
  • Sliding material
    Patent number: 4898905
    Abstract: A sliding material used under a boundary lubricating conditions or mixed lubricating condition, and having improved, wear-resistance, low-friction property, and seizure-resistance, and consisting of (a) 10 to less than 69% of polyimide and/or polyamide-imide, from more than 30 to 68% of graphite, and, 1 to less than 30% of polytetrafluroethylene, MoS.sub.2, Pb, and/or BN, or (b) 20 to 90% of polyimide and/or polyamide-imide, and from 0.5 to 20% clay, mullite, silica, and/or alumina, and at least 5% and balance of graphite.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: February 6, 1990
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Shinya Kawakami, Masahara Kikuchi
  • Binder composition for injection molding
    Patent number: 4898902
    Abstract: A binder composition for injection molding of at least one of metal powder and ceramic powder which comprises polyoxyethylene/polyoxypropylene condensation polyether as the main component together with from 10 to 100 parts by weight of at least one auxiliary component selected from the group consisting of natural waxes, synthetic waxes, fatty acids and esters per 100 parts of said polyoxyethyene/polyoxypropylene condensation polyether.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: February 6, 1990
    Assignees: Adeka Fine Chemical Co., Ltd., Asahi Denka Kogyo Kabushiki Kaisha
    Inventors: Tomoaki Nagai, Hideyuki Yamanashi, Hideo Hachimori
  • Process for producing polyester resin composition
    Patent number: 4898897
    Abstract: A process for producing a polyester resin composition containing at least 10 wt % of a white inorganic pigment dispersed in a polyester resin, which comprises kneading the polyester resin with the white inorganic pigment and thereafter subjecting the blend to a polycondensation reaction at a temperature ranging from the melting point of the polyester up to 300.degree. C. and at a reduced pressure of not higher than 5 Torr, is disclosed.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: February 6, 1990
    Assignees: Konica Corporation, Kanebo Ltd.
    Inventors: Kazuto Kiyohara, Toshiaki Yamazaki, Ichiya Harada, Takanori Nakadate, Kentaro Noguchi, Michiteru Nakano, Shigeru Sakae, Kazuhiro Okuma
  • Aqueous coating resin compositions and process for producing same
    Patent number: 4897434
    Abstract: An aqueous coating resin composition, the improvement wherein a microgel composed of a resin reaction product having a three-dimensional network structure, which is obtained by the esterification reaction of (1) 40 to 90 parts by weight of an aromatic epoxy resin with (2) 10 to 60 parts by weight of a carboxyl group-containing vinyl polymer comprising (a) a carboxyl group-containing vinyl monomer, (b) an aromatic vinyl monomer and (c) at least one monomer selected from the group consisting of an alkyl ester, a hydroxyalkyl ester and an N-hydroxyalkylamide of an alpha,beta-ethylenically unsaturated carboxylic acid, is dispersed into an aqueous medium; and a process for production thereof.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: January 30, 1990
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Hiroaki Shimada, Yoshio Itoh, Tadami Ueno, Norio Yokomichi
  • Phenol formaldehyde adhesive for bonding wood pieces of high moisture content and composite board and veneers bonded with such adhesive
    Patent number: 4897314
    Abstract: An improved phenol formaldehyde resin not requiring fillers or extenders and capable of bonding wafers or veneers having a moisture content of 10% or above is disclosed. The adhesive composition is prepared by mixing together a caustic solution of a high molecular weight PF resin, a dispersion of PF resin which is characterized in that it can swell in aqueous caustic medium but not go into solution, and alkylene carbonates or phenol resorcinol formaldehyde resins. Optionally, borax is utilized. The disperse phase is made by converting a solution of PF resin into a fine particle size particulate form by precipitation, spray drying or freeze drying, and partially cross-linking the resin during or subsequent to the formation of the fine particle size dispersion. The PF resin is partially cross-linked by (a) heat, by (b) acid catalysis, or by (c) a reaction with cross-linking chemicals.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: January 30, 1990
    Assignee: Forintek Canada Corp.
    Inventors: Michael R. Clarke, Paul R. Steiner, Axel W. Anderson
  • Rubber Compositions
    Patent number: 4897446
    Abstract: A rubber composition comprising(1) 10 to 90% by weight of at least one of a butyl rubber and a halogenated butyl rubber as a first rubber component, and(2) 90 to 10% by weight of an epichlorohydrin rubber as a second rubber component,at least part of at least one of said rubbers (1) and (2) being modified with maleic anhydride or its derivative.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: January 30, 1990
    Assignee: Nippon Zeon Co., Ltd.
    Inventor: Mitsuyoshi Aonuma
  • Process for isolating polyarylene sulphides
    Patent number: 4895930
    Abstract: The invention relates to a process for purifying and isolating polyarylene sulphides. In this process polyarylene sulphides are obtained with a particularly low electrolyte content.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: January 23, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Franz Alfes, Wolfgang Alewelt, Wolfgang Eisermann, Erhard Tresper
  • Laminating ink composition containing polyamide resins
    Patent number: 4895888
    Abstract: An improved fluid printing ink composition suitable for use in laminating inks is provided which comprises a resin, alcohol solvent, and a pigment. In accordance with the present invention the improvement is provided wherein the resin comprises an alcohol soluble polyamide resin having recurring units of the formula: ##STR1## wherein R.sub.1 is either hydrogen or methyl, R.sub.2 is either a carbocyclic, aralkyl or linear or branched aliphatic group, X is an alkylene group, and Z and Z' each represent an alkyl group which may be the same or different or taken together to represent an alkylene group. The fluid ink compositions of the invention have superior qualities when used as laminating inks, are less expensive than previous laminating inks, and can be used successfully on a wide variety of packaging films.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: January 23, 1990
    Assignee: BASF Corporation
    Inventor: William P. Keaveney
  • Hindered tertiary amine aminoalkyl methacrylate stabilizer for spandex
    Patent number: 4895902
    Abstract: An improved spandex composition is provided in which a polymeric hindered tertiary amine stabilizer is present. The polymeric amine is poly(diisopropylaminoethyl methacrylate/hydroxybutyl acrylate) or poly(diisopropylaminoethyl methacrylate/ethyl acrylate).
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: January 23, 1990
    Assignee: E. I. DuPont De Nemours and Company
    Inventors: Gary A. Lodoen, Arnoldus J. Ultee
  • Coating composition
    Patent number: 4895900
    Abstract: This invention provides a coating composition comprising a basic nitrogen-containing acrylic resin, a polyepoxy compound and a carboxyl group-containing acrylic resin.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: January 23, 1990
    Assignee: Kansai Paint Company, Limited
    Inventors: Hajime Sukejima, Hiroshi Iwai, Kozi Matsumoto
  • Impact resistant polyethylene terephthalate/polycarbonate/polyethylene graft copolymer blends
    Patent number: 4895899
    Abstract: High impact strength blends based on polyethylene terephthalate resin, polyethylene resin, aromatic polycarbonate resin and styrene-acrylonitrile grafted copolymers of EPDM. This invention is of especial value in improving the engineering properties of PET/PE bottle recycle products.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: January 23, 1990
    Assignee: Uniroyal Chemical Company, Inc.
    Inventor: John M. Wefer
  • Biaxially-stretched film made of poly(arylene sulfide) resin composition and production process thereof
    Patent number: 4894419
    Abstract: A biaxially-stretched film is made of a resin composition composed of 100 parts by weight of a substantially linear poly(arylene sulfide) having a melt viscosity of at least 1,000 poises and 0.5-80 parts by weight of a styrene-based resin. The film is produced by diluting a master batch, which has been prepared in advance and is composed of the poly(arylene sulfide) and styrene-based resin, with an additional supply of the poly(arylene sulfide) so as to prepare a resin composition containing the polystyrene-based resin in an amount of 0.5-80 parts by weight per 100 parts by weight of the poly(arylene sulfide), and then biaxially stretching the thus-prepared resin composition.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: January 16, 1990
    Assignee: Kureha Kagaku Kogyo K.K.
    Inventors: Toshiya Mizuno, Yoshikichi Teramoto, Takeshi Saito, Juichi Wakabayashi
  • Molding compositions based on poly(1,4-cyclohexylene dimethylene terephthalate) containing an amide crystallization aid
    Patent number: 4894404
    Abstract: Disclosed is a polyester molding composition comprising poly (1,4-cyclohexylene dimethylene terephthalate), glass fibers and an amide compound as a crystallization aid.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: January 16, 1990
    Assignee: Eastman Kodak Company
    Inventor: Larry A. Minnick
  • Composite material and process for producing the same
    Patent number: 4894411
    Abstract: Provided herein is a composite material which comprises a polyamide-containing resin, a layered silicate dispersed therein, and a substance such as polyamine which controls the crystalline structure or molecular structure of the resin. The composite material has improved mechanical strength and toughness and high clarity or transparency.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: January 16, 1990
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Akane Okada, Masaya Kawasumi, Masao Kohzaki, Megumi Fujimoto, Yoshitsugu Kojima, Toshio Kurauchi, Osami Kamigaito
  • Process for preparing phenolic hydroxyl-containing compounds from 2,6-dibromo-3,5-dialkyl-4-hydroxybenzyl ethers
    Patent number: 4892925
    Abstract: 2,6-dibromo-3,5-dialkyl-4-hydroxybenzyl ethers, glycidyl ethers thereof and reaction products with phenolic hydroxyl-containing compounds, and glycidyl ethers of the resulting new phenolic hydroxyl-containing compounds.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: January 9, 1990
    Assignee: The Dow Chemical Company
    Inventors: Chun S. Wang, Abel Mendoza, David B. Fritz
  • Polyphenylene ether resin composition
    Patent number: 4892900
    Abstract: A polyphenylene ether resin composition superior in impact resistance, heat resistance, mechanical strength, moldability, and flow properties, comprising a polyphenylene ether resin (A), a polystyrene resin (B), and a polyorganosiloxane-based graft copolymer (C) produced by graft polymerizing one or more vinyl monomers onto a polyorganosiloxane rubber which contains a graft-linking agent copolymerized and exhibits a degree of swelling of 3 to 15 measured in toluene.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: January 9, 1990
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Isao Sasaki, Naoki Yamamoto, Akira Yanagase