Appeal No. 2002-0701
Application 09/201,269
Rejection of claim 8 under 35 U.S.C. § 103
over Campbell in view of Carlick
The portion of Carlick relied upon by the examiner (answer,
pages 6-7) is the following:
The hard or tackifying resins that are suitable
for use in the lithographic ink vehicles are those
resins that are well known in the art of ink making for
their exellent [sic] lithographic properties and good
pigment wetting capabilities. These include alkyd
resins, urethane-modified alkyd resins, rosin-modified
phenolic resins, hydrocarbon resins, rosin esters,
polyketones, and the like.
The examiner argues that it would have been obvious to one of
ordinary skill in the art to add Carlick’s resin to Campbell’s
branched polymer to produce an ink having good wetting ability
(answer, page 7).
The examiner’s argument is not persuasive because the
examiner has not established that Campbell’s teaching that the
branched vinyl resins can be used to form effective coating
compositions (col. 8, lines 43-44) would have fairly suggested,
to one of ordinary skill in the art, using the resins to form a
printing ink composition, particularly a printing ink composition
having a branched vinyl resin in solution,6 as required by the
6 Campbell teaches that an increase in weight average
molecular weight and polydispersity typically correlates with
formation of insoluble gels (col. 10, lines 3-4). The examiner
merely argues that Campbell does not disclose the minimum
8
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007