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. 31, 1989
Filed:
Jun. 22, 1987
Toshio Niwa, Kanagawa, JP;
Kiyoshi Himeno, Kanagawa, JP;
Toshio Hihara, Kanagawa, JP;
Shuichi Maeda, Saitama, JP;
Mitsubishi Chemical Industries Limited, Tokyo, JP;
Abstract
Disazo dyes for dyeing cellulose-containing fibers represented by the following general formula: ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, a halogen atom, a nitro group, a cyano group, a thiocyanato group, a trifluoromethyl group, a formyl group, a lower alkoxycarbonyl group, a lower alkylsulfonyl group, a sulfamoyl group, an N-lower alkylsulfamoyl group or an N,N-di-lower alkylsulfamoyl group, R.sup.3 represents a hydrogen atom, a methyl group, a chlorine atom, a lower alkoxy group or an acylamino group, R.sup.4 represents a hydrogen atom, a methyl group, a chlorine atom or a lower alkoxy group, R.sup.5 represents a hydrogen atom, a lower alkyl group or a halogen atom, --X-- represents ##STR2## --SO.sub.2 -- or --CH.sub.2 --, and n represents 0 or 1. These dyes are capable of dyeing cellulose-containing fibers, particularly fiber blends composed of cellulose fibers and polyester fibers, blue to bluish green with good fastness properties.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile