Appeal 2007-3547
Application 10/231,652
Appellants' claimed invention is directed to a film-forming coating
composition including a polyester, an acrylic copolymer, a crosslinker, and a
solvent. Claim 36 is illustrative and reproduced below:
36. A film-forming composition suitable for coating food cans
comprising:
(a) a polyester;
(b) an acrylic copolymer;
(c) a crosslinker; and
(d) a solvent,
wherein the polyester and acrylic copolymer are grafted together and
the graft copolymer reacts with the crosslinker to form the film, and wherein
the composition is substantially epoxy free.
The Examiner relies on the following prior art references as evidence
in rejecting the appealed claims:
Kadowaki US 4,728,684 Mar. 1, 1988
Taga JP 08269427 Oct. 15, 1996
Simms US 6,037,414 Mar. 14, 2000
Claims 7, 8, 15, 17, 36, 37, 39, 40, and 42-48 stand rejected under
35 U.S.C. § 102(b) as being anticipated by Kadowaki. Claims 7, 8, 15-22,
36-48, 50, and 51 stand rejected under 35 U.S.C. § 102(b) as being
anticipated by Taga. Claims 7, 8, 15, 17, 36, 39, 41, and 43-48 stand
rejected under 35 U.S.C. § 102(b) as being anticipated by or, in the
alternative, under 35 U.S.C. § 103(a) as being unpatentable over Simms.
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