Appeal No. 1999-1189
Application 08/219,317
OPINION
We reverse the aforementioned rejections. We need to
address only the independent claims, which are claims 28 and 55.
Rejection over Batchelor taken with official notice
Batchelor discloses a transparent laminate having an
interlayer made of an ethylene polymer having pendent carboxylate
groups, preferably also having pendent amide groups, and
optionally having pendent ester groups (page 2, lines 4-47;
page 3, lines 10-17). The pendent ester groups can be, inter
alia, those of methyl acrylate or butyl acrylate units which are
present in the amounts recited in the appellants’ claim 28
(page 2, lines 37-43, 48-50 and 73-77).
Thus, Batchelor discloses an ethylene alkyl acrylate
copolymer which can have ester units including methyl acrylate
and butyl acrylate, but does not disclose a blend of an ethylene
methyl acrylate copolymer (EMAC) and an ethylene butyl acrylate
copolymer (EBAC) as required by the appellants’ claim 28 or an
ethylene alkyl acrylate copolymer blend as required by the
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