Appeal No. 95-2657
Application No. 07/980,637
the final rejection. These are all of the claims remaining in
the application.
The subject matter on appeal relates to a method for the
lubrication of an automatic transmission of a motor car with a
fluid comprising an overbasic oil-soluble metal salt and a
compound derived from a polyolefin having a molecular weight
of 300 to 3000, said compound having a long-chain alkyl group
and an amino group in the same molecular structure. Further
details of this appealed subject matter are apparent from a
review of independent claim 2 which reads as follows:
2. A method for the lubrication of an automatic
transmission of a motorcar which comprises lubricating the
automatic transmission with an automatic transmission fluid
comprising, on the basis of the total amount of composition,
as essential components, 0.01 to 20% by weight of an overbasic
oil-soluble metal salt (a) prepared by use of an alkaline-
earth metal borate, and 0.01 to 15% by weight of a compound
(b) derived from a polyolefin having a molecular weight of 300
to 3000, said compound (b) having a long-chain alkyl group and
an amino group in the same molecular structure selected from
the group consisting of succinimide and derivatives thereof,
benzylamine, polyalkylamine, and polyoxyalkylane aminoamide,
the balance being lubricating base oil.
The reference relied upon by the examiner as evidence of
obviousness is:
Inoue et al. 0,447,916 Sep. 25, 1991
(Inoue) (EP)
2
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