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. 23, 1996
Filed:
Jan. 27, 1995
Tetsuya Miyamoto, Takatsuki, JP;
Miyao Takahashi, Minoo, JP;
Takahiko Fujisaki, Takarazuka, JP;
Naoki Harada, Suita, JP;
Yutaka Kayane, Ibaraki, JP;
Takashi Omura, Kobe, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A dioxazine compound represented by the following formula in the free acid form, ##STR1## wherein V is a direct linkage or ##STR2## in which R.sub.3 is hydrogen or alkyl, X is a direct linkage or an aliphatic, araliphatic or aromatic bridging group, Y is phenylene or naphthylene, Z is a so-called vinylsulfone type fiber reactive group, and R.sub.1 and R.sub.2 are each hydrogen or alkyl, which is useful for dyeing or printing fiber materials to give a dyed or printed product of a blue color superior in fastness properties with superior build-up property.