Appeal No. 95-5126
Application No. 08/045,675
THE CLAIMED SUBJECT MATTER
Appellants state that “[t]he rejected claims do not stand
or fall together; [c]laims 1, 14 and 22 are argued separately
below.” See Brief, page 7. Accordingly, for purposes of this
appeal, we will focus on claims 1, 14 and 22, which are
reproduced below:
1. A homogeneous, oil-soluble additive concentrate which
comprises:
a) a minor proportion of diluent oil;
b) from 10 to 30% by weight based on the weight of said
concentrate of an organic sulfur-containing antiwear
and/or extreme pressure agent having a sulfur content of at
least about 20% by weight based on the weight of said
antiwear and/or extreme pressure agent;
c) from 1 to 5% by weight based on the weight of said
concentrate of an ashless dispersant;
d) from 2 to 8% by weight based on the weight of said
concentrate of a dimethyl ester of an aliphatic
phosphonic acid in which the aliphatic group has an average
in the range of about 12 to about 24 carbon atoms;
e) from 10 to 30% by weight of a 3-hydrocarbyl-2,5-
diketopyrro- lidine in which the hydrocarbyl group is an
alkyl or alkenyl group having an average in the range of
about 12 to about 30 carbon atoms, the weight ratio of said
diketopyrrolidine to said dimethyl ester being at least 3:1
and at least sufficient to render said concentrate
homogeneous at temperatures at least as low as 12°C.
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007