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. 05, 2013
Filed:
Jan. 15, 2013
Applicant:
Ajinomoto Co., Inc., Chuo-ku, JP;
Inventor:
Yuji Koshima, Kawasaki, JP;
Assignee:
Ajinomoto Co., Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/23 (2006.01); C08L 85/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pigment dispersant which includes a modified polyamine obtained by the reaction of a polyamine having two or more primary and/or secondary amino groups per molecule and containing 2 to 1800 nitrogen atoms per molecule, a polyester, and a phosphorus-containing compound. The modified polyamine exhibits excellent pigment dispersion performance, shows little change in color tone upon heating, and has excellent heat resistance.