Appeal No. 2002-0701
Application 09/201,269
appellant’s claim 1 from which claim 8 depends, in combination
with pigment particles which must be present for the examiner’s
argued benefit of Carlick’s tackifying resin to be obtained.
Thus, we conclude that the examiner has not established a
prima facie case of obviousness of the printing ink composition
claimed in the appellant’s claim 8 over Campbell in view of
Carlick.
Rejection of claims 19-22 under 35 U.S.C. § 103 over
Houser or Puschak, in view of Margotte or Oshima
Houser discloses hydrocarbon-soluble resins which are useful
as binders in gravure printing inks and are the solution
polymerization reaction product of 1) an alkyl or cycloalkyl
ester of acrylic or methacrylic acid, 2) styrene or alkylated
styrene, 3) a carboxyl-containing monomer, and where desired,
4) up to about 2.0 wt% of a difunctional ethylenically
unsaturated monomer (col. 2, lines 55-62; col. 3, lines 6-21).
Houser teaches that “it is preferred to utilize a free-radical
polymerization initiator. The type of free-radical
polymerization initiator suitable for use in the reaction is
molecular weight and polydispersity at which insoluble gel
formation takes place (answer, page 17). The examiner does not
explain how Campbell would have fairly suggested, to one of
ordinary skill in the art, a solution of a branched vinyl polymer
having a polydispersity of at least about 15.
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