Appeal No. 95-4065
Application No. 07/872,185
suitable proofs indicating that the specification is
indeed enabling. [citation omitted]
The examiner has stated that it is not clear “from the
enabling description” why or how only one and not both of the
reactive SiCl end groups react with the reactive hydroxyl
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groups on the substrate surface (Paper No. 16, page 2,
paragraph 15). The examiner has advanced a theory that both
reactive end groups will bond to the substrate surface and
form loops (Paper No. 16). As evidence in support of this
theory, the examiner cites Yundt “which shows formation of
monomolecular polysiloxane loops” (Answer, page 3).
On this record, we find that the examiner has failed to
meet the initial burden of establishing lack of enablement.
Yundt does not disclose or teach the use of SiCl end groups
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in the formation of a monomolecular film on a substrate.
Yundt is limited to flexible backbone long chain polymer units
which can form loops (column 2, lines 42-50; column 4, lines
15-17, 35-37), e.g., chain polymers having a length of at
least about 60 Angstroms (column 5, lines 42-61). Yundt
discloses an example where, with certain chain lengths, the
polymer forms chains which are bonded at only one end (Example
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Last modified: November 3, 2007