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. 18, 1977
Filed:
Jan. 17, 1975
Nippon Kayaku Kabushiki Kaisha, Tokyo, JA;
Abstract
Reactive disazo dyestuffs of the following formula are disclosed. ##STR1## or --NHR wherein w.sub.1, w.sub.2, w.sub.3, and w.sub.4 represent hydrogen or methyl; Q represents --SO.sub.2 -- or --CO--; k, r, l and q represent 1 or 0; R represents hydrogen; --COCH.sub.3 ; ##STR2## which may be substituted by methyl or chloro; phenyl which may be substituted by sulfo or carboxy; or --CH.sub.2 CH.sub.2 OH. Hal represents chloro or bromo. X represents amino; mono- or di-alkylamino having from 1 to 3 carbon atoms; mono- or di-hydroxyalkylamino having from 1 to 3 carbon atoms; anilino which may be substituted by a sulfo group, carboxy group, methyl, ethyl, nitro, methoxy, ethoxy, acetylamino, sulfamoyl, .beta.-sulfatoethylsulfonyl, cyano, chloro, or bromo; N-methylanilino; carboxymethylamino; .beta.-sulfoethylamino; N-(.beta.-hydroxyethyl)-methylamino; naphthylamino which may be substituted by a sulfo group; morpholino; alkoxy having from 1 to 3 carbon atoms; or phenoxy which may be substituted by chloro, nitro, sulfo, or methyl, and p is 0 or 1, m is a whole number from 1 to 3 and n is a whole number from 1 to 2. These dyestuffs are useful for dyeing of such materials as cellulosic fibers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile