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:
Nov. 25, 2014
Filed:
Dec. 18, 2012
Applicant:
Columbia Insurance Company, Omaha, NE (US);
Inventors:
Gary Dandreaux, River Edge, NJ (US);
Kevin Scanlon, Lake Hopatcong, NJ (US);
Robert J. Sheerin, North Caldwell, NJ (US);
Ashley Brewer, Somerset, NJ (US);
Assignee:
Columbia Insurance Company, Omaha, NE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 133/06 (2006.01); C08K 5/09 (2006.01); C08F 220/18 (2006.01); C08F 212/08 (2006.01); C09D 151/00 (2006.01); C08F 285/00 (2006.01); C08F 265/02 (2006.01); C08F 265/04 (2006.01); C08F 257/02 (2006.01); C08F 265/06 (2006.01);
U.S. Cl.
CPC ...
C08F 257/02 (2013.01); C09D 151/003 (2013.01); C08F 285/00 (2013.01); C08F 265/02 (2013.01); C08F 265/04 (2013.01); C08F 265/06 (2013.01);
Abstract
The present invention relates to a grafted pigment dispersing polymeric additive for opacifying pigments, prepared by polymerizing monomers in the presence of a polymeric pigment dispersant. The polymeric pigment dispersant has low molecular weight, high acid number and is dissolvable in alkali solution. When incorporated into paint compositions, hiding is improved with less opacifying pigments.