申请人:——
公开号:US20020028296A1
公开(公告)日:2002-03-07
The present invention provides fora silicone epoxy resin, its preparation, and the use in corrosion-inhibiting, heat-stable coatings. The inventive resins are obtained by a process which comprises reacting:
I) siloxanes of the general formula
R
a
Si(OR′)
b
O
(4-a-b)/2
in which
OR′ is an alkoxy group with primary or secondary aliphatic alcohols,
R is identical or different and is an alkyl group or an aromatic group,
a is from 0.1 to 2.0, and
b is from 0.1 to 1.0,
with
II) one or more low molecular mass polyhydric alcohols/polyols and
III) one or more resins containing epoxide groups, containing at least two 1,2-epoxide groups per molecule,
at temperatures in the range from about 100 to about 160° C. with removal of the alcohol HOR′ to a degree of conversion of from 20 to 80% and terminating the reaction by cooling to a temperature < about 100° C.