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:
Oct. 02, 1984
Filed:
Jun. 03, 1980
Applicant:
Inventors:
Setsuzo Takahashi, Tokyo, JP;
Hideo Inoue, Omiya, JP;
Hideo Otake, Tokyo, JP;
Hiroshi Senoo, Fukuyama, JP;
Assignee:
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
260153 ; 260196 ;
Abstract
Reactive azo dyestuffs which, in the form of free acid, are represented by the following formula: ##STR1## (wherein R is hydrogen or methyl) are characterized by exhibiting the following properties: high fixation efficiency, excellent wash-off, high build-up and excellent wet fastness. Such dyestuffs give dyeings excellent in light fastness, chlorine fastness and color yield.