Appeal 97-1554
Application 08/495,593
particularly preferred is isobutene (specification, page 3,
lines 35-37).
Component B
11. Component B is a polyetheramine (specification,
page 4, line 31 et seq.).
12. According to the specification, Component B
can be prepared in accordance with a process described in
Rath, U.S. Patent 5,112,364 (1992) (specification, page 6,
lines 17-18).
The claims on appeal
13. Claims 1-5 and 7 are on appeal.
14. Applicants separately argue the patentability of
claims 3 and 7 (Appeal, Brief, page 2).
15. Claim 3 limits claim 1:
A mixture as defined in claim 1, wherein the hydrocarbon
radical of the component A is a polyisobutyl radical.
16. Claim 7 is limited to a "fuel for gasoline
engines containing small amounts" of Component A and Component
B.
The examiner's rejection
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