Appeal No. 95-4939
Application No. 08/096,345
1. A composition consisting essentially of:
(I) a reaction product prepared by reacting at a
temperature 50EC to 300EC:
(i) 100 parts by weight of at least one
polyorganosiloxane selected from the group consisting of[:]
(A) a polyorganosiloxane having a
viscosity of about 20 to 100,000 cS at 25EC and being
1 1
expressed by the general formula R SiO in which R is a
a (4-a)/2
monovalent hydrocarbon or halogenated hydrocarbon group having
1 to 10 carbon atoms and a has an average value of 1.9 to 2.2
and
(B) a polyorganosiloxane having a
viscosity of 200 to about 100 million cS at 25EC expressed by
2 3 2
the general formula R (R O) SiO in which R is a monovalent
b c (4-b-c)/2
hydrocarbon or halogenated hydrocarbon group having 1 to 10
carbon atoms, R is hydrogen or a monovalent hydrocarbon group3
having 1 to 10 carbon atoms, b has an average value of 1.9 to
2.2 and c has a sufficiently large value to give at least one
3 3
-OR group in each molecule, at least one such -OR group being
present at the end of the molecular chain;
(ii) 0.5 to 20 parts by weight of at least one
silicon compound selected from the group consisting of
(a) an organosilicon compound of the
4 4
general formula R SiX in which R is a monovalent hydrocarbon
d 4-d
group having 1 to 5 carbon atoms, X is selected from the group
consisting of hydroxyl and a hydrolyzable group and d has an
average value of one or less,
(b) a partially hydrolyzed condensate of
said compound (a),
(c) a siloxane resin consisting
essentially of (CH ) SiO units and SiO units wherein the3 3 1/2 4/2
ratio of (CH ) SiO units to SiO units is 0.4:1 to 1.2:1, and3 3 1/2 4/2
-2-
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Last modified: November 3, 2007