Patents Examined by David Aylward
  • Patent number: 5709960
    Abstract: An electronic component has a body (11) that is formed from a mold compound that includes a thermoplastic material (31), a first filler (32) comprised of an electrically insulative material wherein the first filler (32) is more thermally conductive than the thermoplastic material (31), and a second filler (33) comprised of an electrically conductive material wherein the second filler (33) is more thermally conductive than the thermoplastic material (31).
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: January 20, 1998
    Assignee: Motorola, Inc.
    Inventors: Lonne L. Mays, Mark D. Mosher, Alexandra Hubenko
  • Patent number: 5691400
    Abstract: A composition comprising water and the following components:(a) an epoxy compound comprising at least one epoxy group and at least one hydrolysable silyl group; and(b) a hydroxy functional polymer having carboxy and/or sulpho groups.The compositions are generally water-based and may be used for making films and coatings having good mechanical and physical properties.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: November 25, 1997
    Assignee: Zeneca Limited
    Inventors: John Gerard Carey, John Christopher Padget, David Alan Pears
  • Patent number: 5536776
    Abstract: A compound that is useful as a dispersant for pigments in waterborne coating compositions, particularly in cathodic electrocoat compositions, is described. The compound comprises an acrylic backbone having a pigment-interactive substituent and a stabilizing substituent. The pigment-interactive substituent has at least one primary amino group. The stabilizing substituent comprises an alkoxy-terminated polyalkylene oxide structure. The dispersant is useful in preparing electrocoat coating compositions.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Corporation
    Inventors: Clint W. Carpenter, Timothy S. December, William D. Hardigan
  • Patent number: 5492968
    Abstract: A resin composition comprising a) a high molecular weight compound containing an average of 2 or more hydroxyl groups and an average of 2 or more epoxy groups per molecule and having a number average molecular weight of 3,000 to 200,000; b) a silane compound having an average of 1 or more alkoxysilane, silanol and acyloxysilane groups per molecule and having a number average molecular weight of 104 to 200,000; and c) a metal chelate compound, is curable at a relatively low temperature to yield a film having excellent resistance to weathering.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: February 20, 1996
    Assignee: Kansai Paint Company Limited
    Inventors: Noboru Nakai, Osamu Isozaki, Naozumi Iwasawa
  • Patent number: 5420178
    Abstract: A flame retardant epoxy molding compound comprises an epoxy, a hardener preferably of the novolac or anhydride type, a catalyst, a mold release agent, preferably a filler, preferably a colorant, preferably a coupling agent, an organic compound containing a higher percent of halogen (which can be part of the resin or the hardener), preferably the meta-brominated cresol epoxy novolac type, preferably containing at least about 0.5% of bromine by weight of the molding compound, a lower percent of sodium, preferably in the range of 0.03-0.06% by weight of the antimony pentoxide, a lower percent of antimony pentoxide, preferably in the range of from less than about 0.8% by weight of the molding compound, and an amount of magnesium aluminum carbonate hydrate less than or about 4.0% by weight of the molding compound. The flame retardant epoxy compounds when used to encapsulated the semiconductor devices have improved high temperature stability and reliability compared to similar prior art molding compounds.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: May 30, 1995
    Assignee: Dexter Electronics Materials Division, Dexter Corporation
    Inventor: Anthony A. Gallo
  • Patent number: 5331025
    Abstract: This invention relates to a non-aqueous coating composition and a method for reducing the drying time of a non-aqueous coating composition by incorporating composite polymer particles having a softer, insoluble first stage and a hard second stage without adversely affecting the viscosity and pot life of the liquid coating composition and without degrading the properties of the final dry coating, including color, flexibility, impact resistance, gasoline resistance, salt spray resistance and humidity resistance.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: July 19, 1994
    Assignee: Rohm and Haas Company
    Inventors: Alvin C. Lavoie, Jen-Chi Chen, Chao-Jen Chung, Dennis P. Lorah, Peter R. Sperry, Andrew W. Gross
  • Patent number: 5324404
    Abstract: In order to increase the stone chip resistance of automobile finishes aqueous electrocoating paints are used which are produced by the use of a pigment paste which contains as grinding resin an at least partially protonated epoxide-amine adduct which is obtainable by reacting(A) a glycidyl ether of a polyphenol which contains on statistical average at least one epoxide group in the molecule, or a mixture of such glycidyl ethers,(B) a polyglycidyl ether of a polyol which contains on statistical average more than 1.0 epoxide groups in the molecule, or a mixture of such polyglycidyl ethers, and(C) a compound which contains a primary amino group in the molecule or a mixture of such compoundswith each other in such a stoichiometric ratio that an epoxide-amine adduct is obtained in which on statistical average at least 2.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: June 28, 1994
    Assignee: BASF Lacke + Farben Aktiengesellschaft
    Inventors: Gunther Ott, Ulrich Heimann, Udo Reiter, David J. Santure, Thomas Brucken, Walter Jouck
  • Patent number: 5324756
    Abstract: A pigment dispersant that is useful in a cathodic electrocoating composition is prepared by bringing into contact the following compounds: a cyclic alkylene urea amine, a polyepoxide and a dialkanol amine; this pigment dispersant has an advantage of allowing for the high pigment to binder ratios and minimizes the volatile organic content (VOC) in the electrocoating composition.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: June 28, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Taddesse Gebregiorgis
  • Patent number: 5322863
    Abstract: The invention relates to a coating compound which comprises a binder solution containinga) 30 to 70% by weight of a binder,b) 2 to 30% by weight of a crosslinking agent,c) if appropriate, 1 to 7% by weight of neutralization agent,d) 20 to 60% by weight of solvent.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: June 21, 1994
    Assignee: BASF Lacke + Farben Aktiengesellschaft
    Inventors: Hans-Jurgen Figge, Holger Dartmann
  • Patent number: 5322864
    Abstract: An epoxy resin composition comprising (a) a low-viscosity epoxy resin having a viscosity of not more than 100 poise at 25.degree. C. which contains a tri- or tetrafunctional liquid aromatic epoxy resin, (b) a liquid curing agent selected from the group consisting of an imidazole compound, the combination of a liquid alicyclic acid anhydride and an imidazole compound, the combination of a liquid alicyclic amine and an imidazole compound, (c) a metal powder having an average particle size of not more than 125 .mu.m or an inorganic powder consisted of 50 parts or more by weight of a metal powder having an average particle size of not more than 125 3/4m and less than 50 parts by weight of an inorganic filler other than a metal powder, whose average particle size is smaller than that of the metal powder, based on the total amount of the metal powder and the inorganic filler.
    Type: Grant
    Filed: February 2, 1993
    Date of Patent: June 21, 1994
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Toshio Sugimoto, Sadahiko Kawaguchi, Akira Esaki
  • Patent number: 5320738
    Abstract: Electrodepositable coating compositions comprising an active hydrogen-containing ionic resin and a curing agent which contains blocked isocyanate groups and oxazolidone groups are disclosed. These coating compositions reduce the tendency of cured electrodeposited films to cause yellowing in subsequently applied topcoat systems. The use of these electrodepositable coating compositions in the process of electrodeposition is also disclosed.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: June 14, 1994
    Assignee: PPG Industries, Inc.
    Inventor: Marvin L. Kaufman
  • Patent number: 5318681
    Abstract: Wet films of cathodic electrodeposition paints are rendered hardly susceptible to oil droplet-induced craters by incorporating a clay pigment surface treated with a silane coupling agent into the paint formulation. Surface smoothness and bath stability are not compromised by the addition of the clay pigment.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: June 7, 1994
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Kunio Murase, Shigehiko Isoyama, Koichi Iwamoto
  • Patent number: 5227414
    Abstract: An ambient temperature-curing aqueous urethane-epoxy emulsion coating composition is provided comprising an essentially organic solvent-free emulsion in water of:(a) a urethane oligomer, terminated with primary amine functional groups which are reactive with epoxides, said oligomer being the reaction product of an isocyanate-terminated polyurethane prepolymer and a mono- or polyketimine compound containing one other functional group bearing a single active hydrogen atom which reacts with the isocyanate groups to yield a ketimine-terminated urethane oligomer, said ketimine-terminated urethane oligomer being emulsified into the water by conversion of the ketimine groups into primary amine groups and formation of acid salt of 25-50% of the amine groups by a volatile organic acid; and(b) a polyepoxide in an amount sufficient to provide a ratio of total primary amino group hydrogen atoms to epoxide groups of about 0.9 to 2.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: July 13, 1993
    Assignee: Tennant Company
    Inventors: G. Dale Ernst, Joseph S. Keute, Alan R. Schuweiler
  • Patent number: 5198494
    Abstract: An adhesive resin composition comprising 1 to 30 parts by weight of a graft copolymerized polypropylene grafted partially or totally with 0.01 to 15 weight % of an unsaturated carboxylic acid or its derivatives and 100 parts by weight of a soft polymer, wherein the soft polymer is a styrene elastomer.
    Type: Grant
    Filed: May 23, 1991
    Date of Patent: March 30, 1993
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Hideshi Kawachi, Masaharu Mito, Mikio Nakagawa
  • Patent number: 5190994
    Abstract: A water-dispersible hybrid polymer of a core/shell structure is provided which is based upon (A) a polymer (core) of a mercapto-functionalized poly(epoxyester) onto which (B) at least one addition polymer-based chain (shell) has been grafted via the addition polymerization of free-radically polymerizable monomers in the presence of the mercapto-functionalized poly(epoxyester). Also provided are aqueous dispersions of these hybrid polymers and coating compositions therefrom, which coating compositions are especially suited for use as clearcoats and surfacers.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: March 2, 1993
    Assignee: Akzo N.V.
    Inventors: Roelof Buter, Andreas H. J. Roelofs, Aletta Wemmenhove