Appeal No. 96-1947
Application No. 08/161,618
According to appellants, the invention is directed to an
electrically insulating and ionically conducting solid,
thermoplastic composition comprising a specific terpolymer, a
polyether containing plasticizer, and an alkali metal salt
(Brief, page 2). Claim 1 is illustrative of the subject
matter on appeal and is reproduced below:
1. An electrically insulating and ionically conducting
solid, thermoplastic composition comprising:
(A) a terpolymer comprising (a) vinyl butyryl, (b) vinyl
alcohol, and (c) vinyl acetate present in said terpolymer in
weight fractions of a:b:c of 0.7-0.9: 0.1-0.3: 0.01-0.05,
respectively, said terpolymer (i) having a number average
molecular weight between about 20,000 and 300,000 and (ii) a
Tg between about 40° and 80°C;
(B) polyether containing plasticizer compatible with said
terpolymer present in said composition in an amount up to
about 50% by weight based on the amount of said terpolymer
present in said composition; and
(C) alkali metal salt;
wherein said thermoplastic composition has a Tg between
about -25°C and 40°C.
The examiner has relied upon the following references as
evidence of obviousness:
Marks et al. (Marks) 3,357,930 Dec. 12, 1967
Sammells 4,807,977 Feb. 28, 1989
Claims 1 through 6 and 8 stand rejected under 35 U.S.C.
2
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