Appeal No. 95-2270
Application 08/005,856
peroxide such as t-butyl perbenzoate, t-butyl peracetate,
and t-butyl peroctoate; and other peroxides such as peroxy
siloxanes and peroxy carbonates.
23. Suitable alkoxy silane cross-linking agents are
said to be (col. 3, line 19 et seq.):
well known in the art and cross-link the silicone pressure-
sensitive adhesive through a condensation reaction with
Si) OH end groups. The preferred cross-linking agents are
methoxy and ethoxysilanes such as methyltrimethoxy silane,
ethyl silicate, gamma-aminopropyltrimethoxy silane,
triethoxy silane, etc. The alkoxy cross-linking agents
require a cross-linking catalyst such as amines or
carboxylic acid salts of metals including Pb, Zn, Zr, Sb,
Fe, Cd, Sn, Ba, Ca, and Mn, particularly the naphthenates,
octoates, hexoates, laurates, and acetates thereof.
Tin (II) octoate and dibutyltin dilaurate are particularly
satisfactory. Amine substituted cross-linking agents such
as gamma-aminopropyltrimethoxy silane are self-catalyzing.
24. There are four examples in applicants'
specification.
a. Example 1 (col. 5) describes the preparation
of an emulsion containing an MQ resin and a silicone fluid. The
example does not represent the claimed invention.
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