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:
May. 26, 1992
Filed:
Oct. 04, 1990
Applicant:
Inventors:
James T Woo, Medina, OH (US);
Gary C Pompignano, North Royalton, OH (US);
Assignee:
The Glidden Company, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
523409 ; 523411 ; 523412 ; 525531 ;
Abstract
A process for non-aqueous copolymerization of ethylenically unsaturated monomers including carboxyl functional monomers in the presence of epoxy resin by in-situ copolymerization is improved by utilizing a catalyst (initiator) combination of less than 2% peroxide and between 0.05% and 0.1% phosphonium catalyst. The carboxyl functional polymer can be aminated and dispersed into water to produce a protective coating composition useful for interior surfaces of beer and beverage cans.