Appeal No. 95-4033
Application 07/669,125
1. A multilayered laminate comprising at least three layers and having improved peel strength,
comprising:
(1) a first layer, comprising a material selected from:
(a) plastic meterials selected from polyphenylene/styrene blends, polyacrylamides,
polystyrenes, conditioned polycarbonates, polyesters, polyimides, polybutylene terephthalates,
and polyetherimides;
(b) metal materials selected from alclad aluminum, anodized aluminum, galvanized steel, cold-
rolled steel, cast aluminum, and cast magnesium, and copper; and
(c) glass materials;
(2) a second layer comprising an addition curable silicone adhesive composition directly bonded
to the first layer in the absence of a primer, the composition comprising by weight:
(A) 100 parts of a vinyl-containing polydiorganosiloxane composition comprising:
(a) from about 50 to about 100 parts by weight of an essentially cyclic-free vinyl-terminated
polydiorganosiloxane having the general formula
(I)
R ViSiO(R SiO) (RViSiO) SiR Vi2 2 m n 2
wherein Vi represents a vinyl radical, R is selected from the class consisting of alkyl radicals
of 1 to 8 carbon atoms, phenyl radicals, fluoroalkyl radicals of 3 to 10 carbon atoms and
mixtures thereof, wherein “m+n” is a number sufficient to provide a viscosity of 100 to about
100,000 centipoise at 25 C, the vinyl content of the polydiorgano-siloxane being from aboutO
0.02 to about 2.0 weight %, and
(b) from about 0 to about 50 parts by weight of a solid, benzene-soluble vinyl-
containing resin copolymer comprising
R SiO units and SiO units1
3 1/2 4/2
1
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Last modified: November 3, 2007