Appeal No. 2000-0026
Application No. 08/942,054
acrylonitrile polymer, and a rubber grafted with at least
a methacrylic acid ester of a C to C alkanol; and1 8
(b) at least about 10% by weight organic solvent.
The examiner relies upon the following references as
evidence of obviousness:
Briggs et al. (Briggs) 4,942,201 Jul. 17, 1990
Patel et al. (Patel) 5,252,634 Oct. 12, 1993
Appellant's claimed invention is directed to a PVC pipe
cement composition comprising the three recited polymeric
components and at least about 10% by weight of an organic
solvent.
Appealed claims 1-9 stand rejected under 35 U.S.C. § 103
as being unpatentable over Briggs in view of Patel.
We have thoroughly reviewed the respective positions
advanced by appellant and the examiner. In so doing, we
concur with appellant that the prior art cited by the examiner
fails to establish a prima facie case of obviousness for the
claimed invention. Accordingly, we will not sustain the
examiner's rejection.
There is general agreement that Briggs discloses
structural adhesive compositions comprising the three
polymeric components recited in paragraph (a) of appealed
-2-
Page: Previous 1 2 3 4 5 6 Next
Last modified: November 3, 2007