Patents Examined by T. Pertilla
  • Resin produced by graft-polymerizing ethylenically unsaturated polymerizable compounds onto a mercapto group containing alkyd resin
    Patent number: 3932562
    Abstract: A resin produced by graft polymerizing at least one ethylenically unsaturated polymerizable compound on a mercapto group-containing alkyd resin, which is useful as an essential component in coating compositions such as paints.
    Type: Grant
    Filed: September 26, 1973
    Date of Patent: January 13, 1976
    Assignee: Nippon Paint Co., Ltd.
    Inventor: Mitsuru Takahashi
  • Mixed epoxy resin-mixed anhydride adhesive compositions
    Patent number: 3932343
    Abstract: A new epoxy resin adhesive composition having exceptionally high tensile lap shear strength is prepared from a mixture of a polyglycidyl ether of a novolac resin, a diglycidyl ether of bisphenol A, 3,4,3',4'-benzophenone tetracarboxylic dianhydride and maleic anhydride. The resin is cured with a metal complex of acetylacetone such as zinc acetylacetonate.
    Type: Grant
    Filed: May 9, 1974
    Date of Patent: January 13, 1976
    Assignee: Gulf Research & Development Company
    Inventor: Walter P. Barie, Jr.
  • Process for coating substrates with high molecular weight epoxy resins
    Patent number: 3931109
    Abstract: Substrates are coated with relatively high molecular weight epoxy resin coatings by applying to a substrate a mixture comprising:A. a relatively low molecular weight epoxy resin such as the diglycidyl ether of bisphenol A,B. a phenolic hydroxyl-containing compound such as bisphenol A andC. a catalyst for effecting a reaction between (A) and (B), andSubjecting the coated substrate to a temperature of 120.degree. to 300.degree.C.
    Type: Grant
    Filed: March 8, 1974
    Date of Patent: January 6, 1976
    Assignee: The Dow Chemical Company
    Inventor: Patrick Henry Martin