Appeal No. 1997-0926
Application No. 08/552,045
adversely react with the polysiloxane, e.g. preclude its
ability to crosslink and thereby bond to the surface of the
catheter" (col. 3, lines 7-10). The preferred lubricating
agent is disclosed as silicone oil (col. 3, lines 17-20).
Both the Scarpelli and Soper patents are directed to
the preparation of microencapsulated products having an oily
core material. See, Scarpelli, col. 1, lines 6-16 and Soper,
col. 1, lines 3-6. The products are disclosed as being useful
in
emollients or deodorants. See, Scarpelli, col. 3, lines 28
and 29 and Soper, col. 3, lines 16-18. Among the materials
described in each of the patents as being suitable for the
core material are mineral oil, and other lubricant oils,
emollients, fragrance oils, escalol and other oily sunscreen
materials, aloe vera, silicone oil, jojoba oil, esters of
vitamin E, such as vitamin E acetate, vitamin E linoleate,
vitamin E palmitate, vitamin A, menthol eucalyptus
formulations, fruit oils, e.g., lemon oil,
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