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. 28, 2006
Filed:
Apr. 16, 2002
Applicants:
Swaminathan Ramesh, Canton, MI (US);
Paul Harris, West Bloomfield, MI (US);
Inventors:
Swaminathan Ramesh, Canton, MI (US);
Paul Harris, West Bloomfield, MI (US);
Assignee:
BASF Corporation, Southfield, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to a polyester polycarbamate polymeric pigment dispersant to be used as a grind resin to incorporate pigment into pigment dispersions for coating compositions. The pigment dispersant is the reaction product of a first compound having a plurality of hydroxyl groups, a carboxylic acid anhydride, a second compound having at least one epoxy group, and a carbamate compound. The present invention is also directed to a method of preparing the pigment dispersant.