Appeal No. 94-3414
Application 08/054,998
The claim on appeal is directed to a silicone gel composition and is intended for application to
human skin. The composition comprises 20-95 percent by weight of a silicone oil, 2-30 percent by weight
of a polyoxyalkylene organopolysiloxane, and 0.2-80 percent by weight water. A copy of claim 5 is
appended to this opinion.
Reference of Record
The following reference of record is relied upon by the examiner as evidence of obviousness:
Ishiwata et al. (Ishiwata) 2 61-212324 Sep. 20, 1986
(Japanese Kôkai Publication)
Ishiwata discloses a silicone gel composition intended for application to human skin comprising 20-
90 percent by weight silicone oil, 0.1-30 weight percent of one or more polyoxyalkylene-modified
organopolysiloxanes, 0.1-15 percent by weight of an organically modified clay mineral, and 0.2 -80 percent
by weight water. The silicone oil can be dimethyl polysiloxane, methylphenylpolysiloxane, octamethyl
cyclotetrasiloxane, or decamethylcyclopentasiloxane. The polyoxyalkylene-modified organopolysiloxanes
can be one of the following formulas:
R R R
| | |
(I) R’(OC H ) O(CH ) ))) (SiO) ))) (SiO )))))))))))))) )))))))) Si )) (CH ) O(C H O) R’q 2q x 2 p m n 2 p q 2q x
| | |
R (CH ) O(C H O) R’ R
2 p q 2q x
2Our consideration of this reference is based on an English language translation which is of record.
2
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