Invention Grant
- Patent Title: Azo dyes
- Patent Title (中): 偶氮染料
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Application No.: US13882874Application Date: 2011-11-29
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Publication No.: US08734532B2Publication Date: 2014-05-27
- Inventor: Helmut-Martin Meier , Christof Heide , Klaus-Günter Strumpf , Thomas Hübbe
- Applicant: Helmut-Martin Meier , Christof Heide , Klaus-Günter Strumpf , Thomas Hübbe
- Applicant Address: FI
- Assignee: Kemira Oyj
- Current Assignee: Kemira Oyj
- Current Assignee Address: FI
- Agency: Thomas Horstemeyer, LLP
- Priority: EP10193156 20101130
- International Application: PCT/EP2011/071291 WO 20111129
- International Announcement: WO2012/072634 WO 20120607
- Main IPC: D06P1/02
- IPC: D06P1/02 ; C09B31/047
Abstract:
The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.
Public/Granted literature
- US20130255006A1 AZO DYES Public/Granted day:2013-10-03
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