Process for the preparation of sulfur-containing additives for l

Compositions – Electrolytes for electrical devices

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260125, 252 486, C10M 138, C07G 1700

Patent

active

043281125

ABSTRACT:
An improved process for preparing a sulfur-containing composition useful as a lubricant additive wherein an organic carboxylic acid is sulfurized in the form of the acid or an ester or amide derivative thereof is disclosed. The improvement comprises using as the acid or acid portion of an ester or amide derivative, a carboxylic acid or mixture thereof obtained by telomerizing an ethylenically unsaturated compound under inert conditions in a reaction medium containing from about 10.sup.-3 to about 10.sup.-10 moles per liter of an at least trivalent manganese compound and one or more carbonyl compounds having at least one hydrogen atom on an alpha-carbon atom wherein at least 60 percent by weight of the total carbonyl-containing compound content is present as carboxylic anhydride and the molar ratio of the reacted quantity of ethylenically unsaturated compounds to the at least trivalent manganese compound is at least 4.

REFERENCES:
patent: 2855366 (1958-10-01), Manteuffel et al.
patent: 3919187 (1975-11-01), Bourdoncle et al.
patent: 4014910 (1977-03-01), de Klein
patent: 4119550 (1978-10-01), Davis et al.
patent: 4177153 (1979-12-01), Lowe
patent: 4201684 (1980-05-01), Malec

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