Appeal No. 2005-0484
Application No. 09/888,696
composition which, like the appellant’s claimed composition,
includes, inter alia, an alkoxysilyl-functional acrylic polymer
(Yamaki component B), and a polysiloxane diol (Yamaki component
C).
The basic issue before us is whether it would have been
prima facie obvious, within the context of 35 U.S.C. § 103, to
formulate a composition of more than 70% by weight solids based
upon the teachings of Yamaki.
We agree with the examiner that the Yamaki disclosure does
embrace formulations containing a solids content of greater than
70% by weight. In this regard, we note that the Yamaki
composition includes five essential components: A, B, C, D, and E
(col. 4, l. 22-col. 5, l. 8). Component A is an oligomer
solution of an organosilane which contains colloidal silica in
dispersion (col. 7, ll. 15-20). The amount of silica in the
composition as a whole can be as much as 40% by weight based on
the total amount of solids in the composition (col. 12, ll. 61-
64).
The appellant refers to the working examples given in Yamaki
as an indication of the solids content of components A, B, and D.
We agree with the examiner that the Yamaki disclosure is not
limited to its working examples. Even so, the working examples
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