Appeal No. 95-2011
Application No. 07/959,011
DECISION ON APPEAL
This is an appeal under 35 U.S.C. § 134 from the final
rejection of claims 1-18, all of the claims pending in the
application. Claims 1 and 12 are representative of the
subject matter on appeal and read as follows:
1. A stable one-part latex composition produced by an aqueous
emulsion polymerization method wherein a core-shell polymer is
formed, said method comprising:
(a) forming a core polymer by emulsion polymerization,
said core polymer comprising:
(1) from 1 to 60% by weight of an epoxy resin, and
(2) from 40 to 99% by weight of at least one
ethylenically unsaturated monomer; and
(b) forming a shell polymer on said core by emulsion
polymerization of a second monomer composition
in the presence of said core, said monomer composition
comprising;
(1) from 1 to 99.5% by weight of at least one
ethylenically unsaturated monomer; and
(2) from 0.5 to 10% by weight of a hydroxyl or
carboxyl functional monomer; providing that
said monomers in both said core and shell do not
contain amino functional groups and wherein
said core-shell polymer comprises from 1 to 80%
by weight of the core polymer and from 20 to 99% by
weight of the shell polymer; and
(c) post-adding to the formed core-shell polymer
composition an effective curing amount of an organic
compound containing at least one amino functional
3
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