Appeal No. 2003-0413
Application 09/148,262
specification indicates that by “formulated to eliminate or
reduce the need to include a release agent”, the appellant means
that a release agent is not needed to obtain the recited enhanced
surface, but the plastic can include part or all of the
conventional amount of release agent.
Claims 26 and 27 require “reduced levels of release agent”.
The appellant’s specification indicates that the amount of
release agent is reduced compared to the amount conventionally
used to reduce sticking (page 1, lines 21-22). The specification
does not indicate that “reduced amount” requires any particular
degree of reduction.
Rejection over Niederst
Niederst discloses a blow molded plastic article having
thereon a protective layer of polyurethane to reduce stress
cracking on the external surface of the article (col. 1,
line 47 - col. 2, line 2; col. 2, lines 57-60).
The examiner’s explanation of the rejection over Niederst is
the following (answer, pages 3-4):
Niederst et al. teaches blow molded rigid
containers for containing carbonated beverages formed
from first injection-molding intermediate tubular-
shaped articles (preforms) comprising layers of
polypropylene, polyester, and/or polyurethane (See
Abstract, col. 1, lines 11-17; col. 2, line 38 to
col. 3, line 48).
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