Invention Grant
US5929216A Benzothiazolium containing azo dyes useful for dyeing polyacrylonitrile
失效
含有偶氮染料的苯并噻唑鎓可用于染色聚丙烯腈
- Patent Title: Benzothiazolium containing azo dyes useful for dyeing polyacrylonitrile
- Patent Title (中): 含有偶氮染料的苯并噻唑鎓可用于染色聚丙烯腈
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Application No.: US929148Application Date: 1997-09-10
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Publication No.: US5929216APublication Date: 1999-07-27
- Inventor: Wilfried Herter , Josef Koller
- Applicant: Wilfried Herter , Josef Koller
- Applicant Address: NY Tarrytown
- Assignee: Ciba Specialty Chemicals Corporation
- Current Assignee: Ciba Specialty Chemicals Corporation
- Current Assignee Address: NY Tarrytown
- Priority: CHX4367-89-0 19891206
- Main IPC: C09B44/00
- IPC: C09B44/00 ; C09B44/20 ; D06P3/78 ; C09B44/10 ; C09B43/00
Abstract:
Disclosed are dyes having the formula ##STR1## in which R.sub.1 is C.sub.1 -C.sub.4 alkoxy or chlorine,R.sub.2 is C.sub.1 -C.sub.4 alkyl,R.sub.3 is C.sub.1 -C.sub.4 alkyl,R.sub.4 is C.sub.1 -C.sub.4 alkyl,R.sub.5 is hydroxyethyl or hydroxypropyl, andAn.sup..crclbar. is an anion, in which R.sub.3 and R.sub.4 are not both ethyl at the same time, compositions containing the dyes and methods of using and preparing the dyes. The dyes are especially useful for dyeing polyacrylonitrile.
Public/Granted literature
- USD340947S Marking instrument Public/Granted day:1993-11-02
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