申请人:Barbieru Roxana
公开号:US20090209743A1
公开(公告)日:2009-08-20
The present invention relates to colored organopolysiloxanes comprising units of the formula
R
1
a
(RO)
b
A
c
R
2
d
SiO
(4-a-b-c-d)/2
(I),
in which
R can be identical or different and is hydrogen or a monovalent, unsubstituted or substituted hydrocarbon radical;
R
1
can be identical or different and is hydrogen or a monovalent, SiC-bonded, unsubstituted or substituted hydrocarbon radical;
R
2
can be identical or different and is a substituted monovalent hydrocarbon radical;
A can be identical or different and is an organic dye radical free from sulfonic acid groups and sulfonate groups;
a is 0, 1, 2 or 3;
b is 0, 1, 2 or 3;
d is 0, 1, 2 or 3;
and c is 0, 1 or 2;
with the proviso that the sum a+b+c+d is ≦3, the organopolysiloxane has at least one radical A per molecule, and in the units of the formula (I) where c is other than 0 when d is 0. The invention also relates to a process to the color organopolysiloxane.