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. 04, 1989
Filed:
May. 15, 1987
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
A pyrroline derivative represented by the formula: ##STR1## wherein R.sub.1 and R.sub.2 each independently stand for an alkyl (C.sub.1-6), allyl, alkoxy (C.sub.1-6) ethyl, allyloxyethyl, phenoxyethyl, phenylalkyl (C.sub.1-3), alkoxy (C.sub.1-6) carbonylalkyl (C.sub.1-3) or phenoxyethoxycarbonylalkyl (C.sub.2-3) group and R.sub.3 stands for a hydrogen atom or R.sub.3 ', wherein R.sub.3 ' stands for an alkyl (C.sub.1-6), allyl, benzyl, chlorobenzyl, nitrobenzyl, phenethyl, alkoxy (C.sub.1-6) carbonylalkyl (C.sub.1-3), phenoxyethoxycarbonylalkyl (C.sub.2-3) or cyanoalkyl (C.sub.1-2) group, a process for producing a pyrroline derivative represented by the formula (I) and methods for dyeing a hydrophobic fiber and coloring a synthetic resin with the same.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile