Olefinic hydrocarbon modification with sulfur imides

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

1988-09-13

1989-09-19

Lander, Ferris H.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 72, 44 76, 44 63, C10L 124

Patent

active

048677531

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 hydrocarbyl containing 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 1 to 20 carbon atoms.

REFERENCES:
patent: 3499838 (1970-03-01), Braid
patent: 4772406 (1988-09-01), Brois

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