Appeal No. 96-2407
Application 08/072,210
examiner’s final rejection of Claims 9-12, all claims pending
in this application.
Claims 9-12 stand rejected under 35 U.S.C. § 103 as being
unpatentable in view of the combined teachings of Cha, U.S.
Patent 4,877,566, issued October 31, 1989; Boessler et al.
(Boessler), U.S. Patent 4,199,486, issued April 22, 1980; and
Lundberg et al. (Lundberg), U.S. 4,143,185, issued March 6,
1979.
All claims stand or fall together (Appeal Brief, p. 2) with
Claim 9. Claim 9 reads:
9. A process for preparing elastosol, comprising
the
steps of:
preparing a block copolymer comprising at least one
polymer block A derived predominantly from a monovinyl
aromatic compound and at least one, optionally
hydrogenated
polymer block B derived predominantly from a conjugated
diene, wherein the content of monovinyl aromatic compound
is at least 40% by weight based on the weight of the
block
copolymer,
turning the block copolymer into particles having a
particle size of less than 800 micron; and
dispersing the block copolymer particles in an oil
at
room temperature;
wherein the weight ratio of the block copolymer to the
oil
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