Substituted biphenyl ethers and fuel compositions containing the

Details Substituted biphenyl ethers and fuel compositions containing the Substituted biphenyl ethers and fuel compositions containing the

1997-09-30

1998-10-27

Howard, Jacqueline V.

Fuel and related compositions

Liquid fuels

Organic compound containing -nc or -cn group

44413, 44424, 44425, 44426, 44427, 44428, 564337, 564384, 564389, 568585, 568631, 568642, C10L 118

Patent

active

058273336

ABSTRACT:
Substituted biphenyl polyalkyl ethers having the formula: ##STR1## wherein R.sub.1 is hydrogen or hydroxyl; R.sub.2 is hydroxyl, cyano, nitro, amino, aminomethyl, N-alkylamino or N-alkylaminomethyl wherein the alkyl group contains 1 to about 6 carbon atoms, N,N-dialkylamino or N,N-dialkylaminomethyl wherein each alkyl group independently contains 1 to about 6 carbon atoms, with the proviso that R.sub.1 and R.sub.2 are ortho relative to each other and meta or para relative to the adjoining phenyl substitutent; and R.sub.3 is a polyalkyl group having an average molecular weight in the range of about 450 to about 5,000.
The subsitituted biphenyl polyalkyl ethers of the present invention are useful as fuel additives for the prevention and control of engine deposits.

REFERENCES:
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patent: 4881945 (1989-11-01), Buckley
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patent: 5103039 (1992-04-01), Reardan et al.
patent: 5157099 (1992-10-01), Reardan et al.
patent: 5296003 (1994-03-01), Cherpeck
patent: 5409507 (1995-04-01), Cherpeck
patent: 5637119 (1997-06-01), Cherpeck
patent: 5709720 (1998-01-01), Cherpeck

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