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. 12, 1982
Filed:
Feb. 18, 1981
Shigeyuki Ehashi, Kawagoe, JP;
Junichi Tsuchida, Toyko, JP;
Kenichi Kakimoto, Toyko, JP;
Hiromitsu Katsura, Tokorozawa, JP;
Toyo Ink Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A pigment composition is disclosed which includes a pigment and a coloring compound of the general formula (I), ##STR1## wherein Q represents a residue of a coloring compound other than phthalocyanine, X represents --SO.sub.2 -- or --CO--, m and n represent, respectively, an integer of from 1 to 4 and an integer of from 1 to 6, R represents a hydrogen atom, an alkyl group having from 1 to 20 carbon atoms or an alkenyl group having from 2 to 20 carbon atoms, and R.sub.1 and R.sub.2 represent, independently, a hydrogen atom, a substituted or unsubstituted alkyl group having from 1 to 20 carbon atoms or a substituted or unsubstituted alkenyl group having from 2 to 20 carbon atoms, or R.sub.1 and R.sub.2 together form a heterocyclic ring which contains a nitrogen, oxygen or sulfur atom therein.