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:
Jan. 10, 2023
Filed:
Nov. 29, 2018
Applicant:
Sanyo Color Works, Ltd., Hyogo, JP;
Inventors:
Junichiro Sato, Hyogo, JP;
Takeshi Nishikawa, Hyogo, JP;
Assignee:
Sanyo Color Works, Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/00 (2014.01); C09B 29/033 (2006.01); C09B 29/34 (2006.01); C09D 11/328 (2014.01); G03G 9/09 (2006.01); C09B 29/33 (2006.01); C09B 41/00 (2006.01); C09B 67/22 (2006.01); C09D 11/322 (2014.01); C08K 5/3492 (2006.01); C09D 1/00 (2006.01); C09D 4/00 (2006.01); C09D 5/00 (2006.01); C09K 3/00 (2006.01);
U.S. Cl.
CPC ...
C09B 29/0096 (2013.01); C08K 5/3492 (2013.01); C09B 29/337 (2013.01); C09B 29/34 (2013.01); C09B 41/001 (2013.01); C09B 67/0041 (2013.01); C09D 11/322 (2013.01); C09D 11/328 (2013.01); G03G 9/091 (2013.01); G03G 9/0914 (2013.01);
Abstract
A pigment composition contains: an azo pigment that is a reaction product between a coupler and a base; and a pigment derivative, and a content of o-anisidine derived from the coupler is less than or equal to 20 mg/kg in the entire pigment composition. A method for producing the pigment composition includes, after reaction between a coupler and a base to generate an azo pigment, or during the reaction between the coupler and the base, adding a remover for o-anisidine derived from the coupler.