Appeal No. 1997-3036
Application No. 08/268,094
20). One class of preferred epoxide resins includes acrylate photopolymerizable groups. (Green,
col. 2, lines 31-46). The acrylate photopolymerizable group can be a repeating unit with pendant
side chains -OX where X represents a hydrogen atom or a glycidyl group such that at least one
group X is a glycidyl group. Indeed, in a preferred embodiment the preferred epoxide resins
contain 3 to 10 of the acrylate photopolymerizable groups each having a pendant glycidyl group.
(Green, col. 3, lines 12-36). One preferred subclass of epoxide resins includes those of Formula
XXIV where the epoxide resin possesses two glycidyl end groups and one or more pendant
glycidyl groups. Yet another preferred subclass of Green's epoxide resins is depicted in Formula
XXIX where a partially postglycidylated epoxy resin is shown to possess acrylate end groups.
(Green, col. 6). Green, however, fails to disclose the reaction of an ethylenically unsaturated
monocarboxylic acid with the postglycidylated epoxy resins to form an epoxy acrylate having
pendant acrylate groups such as that described by appellants' claim 11, formula III. Failing to
teach the formation of pendant acrylate groups, Green, as a secondary refernece, could not have
motivated one skilled in the art to modify the resins of Takiyama or Fekete to form appellants'
claimed epoxy acrylates with pendant acrylate moieties or appellants' claimed epoxy acrylate of
formula III when n is 0, Q is hydrogen and L possesses an acrylate end group.
The Kajiwara Reference
Kajiwara relates to polyfunctional epoxy resins having two phenolic glycidyl ether
groups, one or more alcoholic glycidyl ether groups and one or more alcoholic hydroxyl groups.
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