Appeal No. 1997-0311
Application No. 08/340,017
This is an appeal from the final rejection of claims 1-5
and 7-12, all the claims remaining in the present application.
Claims 1 and 12 are illustrative:
1. An aqueous organopolysiloxane dispersion comprising (A)
an organopolysiloxane containing groups which are capable
of condensation, (B) a condensation catalyst, (C) an
organo-polysiloxane resin which is at least partly
soluble in organopolysiloxane (A) when present in amounts
of up to 50% by weight based on the weight of (A), (D) a
compound containing basic nitrogen and (E) a polyvinyl
alcohol.
12. An elastomer prepared from an aqueous dispersion,
comprising
(A) an organopolysiloxane containing groups which are
capable of condensation,
(B) a condensation catalyst,
(C) an organopolysiloxane resin which is partly soluble
in organopolysiloxane (A) when present in amounts of
up to 50% by weight based on the weight of (A),
(D) a compound containing basic nitrogen and
(E) a polyvinyl alcohol,
wherein said elastomer is transparent.
The examiner relies upon the following references as
evidence of obviousness:
Gamon et al. (Gamon) 4,816,506 Mar. 28, 1989
Sittenthaler et al. 4,833,187 May 23, 1989
(Sittenthaler)
Braun et al. (Braun) 5,045,231 Sep. 03, 1991
-2-
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