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:
Sep. 15, 2009
Filed:
Nov. 30, 2005
Applicants:
Yong Yang, Piscataway, NJ (US);
Navin Tilara, Roseland, NJ (US);
Robert J. Sheerin, North Caldwell, NJ (US);
Dan Sayre, Dover, NJ (US);
Inventors:
Yong Yang, Piscataway, NJ (US);
Navin Tilara, Roseland, NJ (US);
Robert J. Sheerin, North Caldwell, NJ (US);
Dan Sayre, Dover, NJ (US);
Assignee:
Columbia Insurance Company, Omaha, NE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 2/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to polymers polymerized sequentially or in stages and having varied functionality and/or monomer content as the polymerization progresses, as well as the methods for making these polymers. The polymers according to the invention can advantageously be present in aqueous emulsion or latex form and can advantageously be used in paint compositions.