Appeal No. 2007-1487
Application 09/562,632
wherein the molar ratio of the hydroxyl groups of component a) to the
isocyanate groups of component b) is between 0.2:1 and 3:1, and the sum of
the wt.% of components a) to c) is 100.
The Examiner relies on the evidence in these references:
Kubitza US 5,075,370 Dec. 24, 1991
Morikawa US 6,482,523 B1 Nov. 19, 2002
Appellants request review of the ground of rejection of claims
1 through 8 under 35 U.S.C. § 103(a) as being unpatentable over Kubitza
taken in view of Morikawa (Answer 3-5; Br. 3).
Appellants argue claims 1 through 7 as a group and claim 8 separately
(Br. 4 and 6). Thus, we decide this appeal based on independent claims
1 and 8 as representative of Appellants’ groupings of claims. 37 C.F.R.
§ 41.37(c)(1)(vii) (2005).
The Examiner contends Kubitza discloses an aqueous coating
composition containing the claimed aqueous, hydroxy-functional, acid group
containing resin dispersion and the claimed polyisocyanate component, thus
differing from the claimed coating composition in the absence of an epoxy
functional silane component as defined in claim 1 (Answer 3-5). The
Examiner contends Morikawa discloses a composition which contains a
carboxyl functional polyurethane resin, polyisocyanate curing agent and an
epoxy functional silane component which can be β-(3,4-
epoxycyclohexyl)ethyltrimethoxysilane or γ-glycidoxypropyl-
trimethoxylsilane, the latter also named (3-glycidoxypropyl)-
trimethoxysilane (id. 5; see appealed claim 3). The Examiner concludes it
would have been obvious to one of ordinary skill in the art to utilize the
epoxy functional silane coupling agent of Morikawa in the coating
3
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