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:
Mar. 19, 1985
Filed:
Feb. 13, 1984
Takashi Omura, Ashiya, JP;
Mikoto Takahashi, Toyonaka, JP;
Naoki Harada, Ibaraki, JP;
Akira Takeshita, Toyonaka, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A phthalocyanine compound which is represented by a free acid of the following formula, ##STR1## wherein Pc is a metal-free or metal-containing phthalocyanine residue, W is a group of ##STR2## in which R' and R' are independently a hydrogen atom or a methyl or ethyl group, and n is an integer of from 2 to 6, R is an unsubstituted or substituted lower alkyl group, A is an unsubstituted or substituted phenylene or naphthylene group, Y is a group of --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z in which Z is a group capable of being split by the action of an alkali, a is a positive number of from 1 to 3, and b and c are independently a positive number of from 0 to 3, provided that a, b and c statisfy 0<a+b+c.ltoreq.4, and which is useful for dyeing or printing fiber materials, particularly cellulose fiber materials, to give a dyed or printed product of a brilliant turquoise blue color excellent in various fastness, particularly light fastness and wet fastness.