Invention Grant
- Patent Title: Azo dyes
- Patent Title (中): 偶氮染料
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Application No.: US13882856Application Date: 2011-11-29
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Publication No.: US09023118B2Publication Date: 2015-05-05
- 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 Helsinki
- Assignee: Kemira OYJ
- Current Assignee: Kemira OYJ
- Current Assignee Address: FI Helsinki
- Agency: Thomas Horstemeyer, LLP
- Priority: EP10193158 20101130
- International Application: PCT/EP2011/071292 WO 20111129
- International Announcement: WO2012/072635 WO 20120607
- Main IPC: C09B31/043
- IPC: C09B31/043 ; C09B31/047 ; C09B31/053 ; C09B31/057 ; C09B31/16 ; C09B31/18 ; C09B31/28 ; D06P3/60 ; D06P3/24 ; D06P1/02 ; D06P1/04 ; D06P1/06 ; C09B31/26 ; C09B31/20 ; D21H21/28
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
- US20130269124A1 AZO DYES Public/Granted day:2013-10-17
Information query
