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:
Aug. 01, 1995
Filed:
Sep. 30, 1993
Tetsuya Miyamoto, Takatsuki, JP;
Miyao Takahashi, Minoo, JP;
Takahiko Fujisaki, Takarazuka, JP;
Shinei Ikeou, Hirakata, JP;
Takashi Omura, Kobe, JP;
Naoki Harada, Suita, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
An asymmetric dioxazine compound of the following formula in the free acid form, ##STR1## wherein R is hydrogen, halogen, sulfo or alkoxy, R.sub.1, R.sub.2 and R.sub.3 are each hydrogen or alkyl, X.sub.1 and X.sub.2 are each hydrogen, halogen, alkyl, alkoxy or phenoxy, Y is alkylene, phenylene or naphthylene, Z is --SO.sub.2 CH.dbd.CH.sub.2, --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H or the like, V is hydrogen, alkyl, acyl or substituted triazinyl, and Q is halogen, alkoxy, amino or a group similar to that of ##STR2## provided that R is hydrogen, and Q is amino or a group similar to that of ##STR3## when V is substituted triazinyl, which is useful for dyeing or printing fiber materials to give dyed or printed products of a brilliant blue color superior in fastness properties, particularly those such as chlorine fastness with superior build-up property.