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. 11, 2008
Filed:
Oct. 01, 2004
Swaminathan Ramesh, Canton, MI (US);
Paul J. Harris, West Bloomfield, MI (US);
Walter H. Ohrbom, Hartland Township, MI (US);
Donald H. Campbell, Hartland, MI (US);
Donald L. St. Aubin, Pleasant Ridge, MI (US);
Ulrike Röckrath, Senden, DE;
Swaminathan Ramesh, Canton, MI (US);
Paul J. Harris, West Bloomfield, MI (US);
Walter H. Ohrbom, Hartland Township, MI (US);
Donald H. Campbell, Hartland, MI (US);
Donald L. St. Aubin, Pleasant Ridge, MI (US);
Ulrike Röckrath, Senden, DE;
BASF Corporation, Southfield, MI (US);
Abstract
Disclosed is a method for making nongelled addition polymers, especially carbamate functional additional polymers from linear unsaturated anhydrides. The method comprises reacting an unsaturated linear anhydride with an active hydrogen compound to provide two monomers comprising polymerizable C═C bonds, at least one of said monomers comprising an acid functional group; polymerizing the polymerizable C═C bonds of the two monomers to provide an acid functional polymerization product; and reacting the acid functional polymerization product with an epoxy functional compound to provide a nongelled addition polymer, wherein the disclosed method does not include a step comprising the physical removal of any acid functional monomers or polymerization products. Also disclosed is a curable coating composition containing the resulting carbamate functional polymer, as well as a coated substrate comprising a cured film resulting from the application and curing of the disclosed curable coating composition.