Olefinic hydrocarbon modification with sulfur imides

Details Olefinic hydrocarbon modification with sulfur imides Olefinic hydrocarbon modification with sulfur imides

1989-08-10

1991-09-10

Willis, Prince E.

Compositions

Electrolytes for electrical devices

252 327R, 564101, 564102, 558157, 558177, 558178, 558199, 548100, C10M14108, C10M15706

Patent

active

050471589

ABSTRACT:
Hydrocarbon compositions, including oligomers and polymers, for use in improving the thermo-oxidative stability and the dispersancy and viscosity index improvement (for high molecular weight) properties of fuels and lubricating oils are disclosed. These compositions are adducts of sulfur mono- and diimides having one of the following formulae: ##STR1## wherein R is a hydrocarbycontaining at least 18 carbon atoms, in which X.dbd. can be O.dbd., S.dbd., Y'--N.dbd., i is 0 or 1, --Y and Y'-- can be ##STR2## wherein R' is hydrocarbyl or hydrocarbyloxy, R" is hydrocarbyl, R'" and R"" are hydrocarbyloxy, and each of R', R", R'", and R"" is from from 1 to 20 carbon atoms.

REFERENCES:
patent: 4659491 (1987-04-01), Valkovich et al.
patent: 4772406 (1988-09-01), Brois

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