Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael Lennartz0
Sandra Weiss0
Adolf Käser0
Date of Patent
May 25, 2010
0Patent Application Number
120067300
Date Filed
January 4, 2008
0Patent Primary Examiner
Patent abstract
The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper.
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