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申请号	BR8807447	申请日	1988-04-06	公开(公告)号	BR8807447A	公开(公告)日	1990-04-10
申请人	EXXON CHEMICAL PATENTS INC;			发明人	BROIS STANLEY J;
摘要	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: (I) (II) (III) wherein r is a hydrocarbyl containing at least 18 carbon atoms, in which X= can be O=, S=, Y'-N=, i is 0 or 1, -Y and Y'- can be 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.
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