Appeal No. 96-3933
Application 07/829,899
(b) about 30 to about 60 percent by weight of an aqueous phase;
wherein said weight percentages of (a) and (b) are each
based on the total weight of said latex.
The examiner relies upon the following references as evidence of obviousness:
Frazee 4,879,333 Nov. 07, 1989
PPG Industries, Inc. (WO '618) WO 89/12618 Dec. 28, 1989
(Published World Intel. Prop. Orig. Application)
Appellants' claimed invention is directed to a latex that finds utility as a pressure
sensitive adhesive composition. The latex comprises a solid phase and an aqueous
phase, with the solid phase comprising a polyacrylate and a hydrophobic polymer that is
incapable of reacting with the monomers which polymerize to the polyacrylate. According
to page 8 of the present specification, "[t]he term 'hydrophobic polymer' as used herein
refers to a water insoluble polymer."
Appellants submit at page 9 of the principal brief that "claims 1 through 11 shall be
considered in a single group and shall stand or fall together with the patentability of claim
1."
Appealed claims 1-11 stand rejected under 35 U.S.C. § 103 as being unpatentable
over Frazee in view of WO '618.
We have thoroughly reviewed each of appellants' arguments for patentability.
However, we are in full agreement with the examiner that the claimed subject matter
3
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007