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:
Feb. 14, 1989
Filed:
Feb. 02, 1988
Rose A Ryntz, Clinton Township, Lenawee County, MI (US);
Kenneth R Kurple, Anchorville, MI (US);
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A thermosetting coating composition adapted to form a flexible cured coating over a variety of substrates, such as metal and plastic containing a hydroxy functional urethane modified polysiloxane graft copolymer and an alkylated melamine crosslinking agent. The copolymer has a number average molecular weight between about 1,000 and about 4,000, has a hydroxyl number between about 30 and about 300, contains about 1-10 urethane linkages per molecule and is the reaction product of carbon-carbon double bond-reactive monoethylenically unsaturated monomer with hydroxy functional carbon-carbon double bond-bearing branched polysiloxane macromer. The macromer is the reaction product of glycidyl methacrylate and hydroxy functional polysiloxane reactant containing 1-10 urethane linkages per molecule.