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:
Apr. 06, 2010
Filed:
Oct. 17, 2005
Applicant:
Cheol Ham, Yongin-si, KR;
Inventor:
Cheol Ham, Yongin-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 11/00 (2006.01); C08K 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A self-dispersible colorant has a hydrophilic group incorporated into a colorant. A method of preparing the self-dispersible colorant reacts a cyclic anhydride with a reactive colorant in the presence of a Lewis acid. An ink composition comprising the self-dispersible colorant provides long-term storage stability and dispersion stability.