The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 1992
Filed:
May. 08, 1991
Applicant:
Inventors:
James T Woo, Medina, OH (US);
Richard M Marcinko, North Royalton, OH (US);
Assignee:
The Glidden Company, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
523411 ; 523416 ;
Abstract
An epoxy-acrylic graft copolymer useful as a paint film is prepared by the in-situ copolymerization of ethylenically unsaturated monomers including between 1% and 25% by weight of alkylated alkylol acrylamide monomer in the presence of at least 3% by weight of peroxide initiator in the absence of water. The unsaturated monomer chains are grafted by carbon-to-carbon grafts to the epoxy resin backbone. The resulting epoxy-acrylic graft copolymer is dispersed into water by adding amine, and is blended with from 1 to 40 parts by weight of aminoplast per 100 parts by weight of copolymer.