High functionality low molecular weight oil soluble dispersant a

Details High functionality low molecular weight oil soluble dispersant a High functionality low molecular weight oil soluble dispersant a

1995-05-30

1998-08-04

Howard, Jacqueline V.

Fuel and related compositions

Liquid fuels

Heterocyclic carbon compound containing a hetero ring having...

44386, C10L 118, C10L 122

Patent

active

057887225

ABSTRACT:
Hydrocarbyl substituted C.sub.4 to C.sub.10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a molecular weight of about 700 to 1200, preferably with a C.sub.4 to C.sub.10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.2 to 2.0 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants.

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