Invention Grant
- Patent Title: Azo dyes
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Application No.: US13882877Application Date: 2011-11-29
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Publication No.: US08734534B2Publication 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 Helsinki
- Assignee: Kemira Oyj
- Current Assignee: Kemira Oyj
- Current Assignee Address: FI Helsinki
- Agency: Thomas Horstemeyer, LLP
- Priority: EP10193153 20101130
- International Application: PCT/EP2011/071289 WO 20111129
- International Announcement: WO2012/072632 WO 20120607
- Main IPC: C09B67/00
- IPC: C09B67/00 ; C07D237/00 ; C09B35/037 ; C09B35/023 ; C09B35/04 ; D06P3/28 ; D06P3/68 ; C09B43/00
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
- US20130255007A1 AZO DYES Public/Granted day:2013-10-03
Information query
