Dyes and Dye Mixtures for Dying Polymers, Method for the Production Thereof and Their Use
申请人:Georlitz Gunter
公开号:US20080312352A1
公开(公告)日:2008-12-18
The present invention relates to dyes of the general formula (1)
where R
1
to R
12
and r are each as defined in claim
1
, dye mixtures comprising more than one dye of the general formula (1), their preparation and their use for coloring polymers, particularly polyurethane and polyurethane foam.