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:
Jul. 27, 1982
Filed:
Jul. 07, 1980
Applicant:
Inventors:
Yasuo Tezuka, Ibaraki, JP;
Masaki Sunami, Toyonaka, JP;
Takashi Omura, Ashiya, JP;
Yutaka Kayane, Moriguchi, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C09B / ; C09B / ;
U.S. Cl.
CPC ...
260153 ; 260199 ; 260194 ;
Abstract
A dye represented by a free acid of the formula, ##STR1## wherein A is ##STR2## in which Z is --CH.sub.2 CH.sub.2 OSO.sub.3 H or --CH.dbd.CH.sub.2. This dye is usable for dyeing cellulose fibers in brilliant red color with good fastness, particularly, too chlorine, light and perspiration-light and possesses level dyeing properties.