Oxidized sulfurized isobutylene lube oil additives

Details Oxidized sulfurized isobutylene lube oil additives Oxidized sulfurized isobutylene lube oil additives

1989-03-10

1990-02-27

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 464, 252 482, 252 55, C10M14306

Patent

active

049044028

ABSTRACT:
Sulfurized isobutylene is reacted with a mild oxidizing agent under conditions sufficient to effect the appearance of new infra red frequency bands at 1300 cm.sup.-1 and 1030 cm.sup.-1 indicative of the formation of sulfoxides and sulfones and a liquid oxidized sulfurized isobutylene product soluble in a lubricating composition is recovered. The resulting purified product imparts improved bearing life when incorporated into lubricant compositions.

REFERENCES:
patent: 3607748 (1971-09-01), Wilson et al.
patent: 4317738 (1982-03-01), Spence
patent: 4344854 (1982-08-01), Davis et al.
patent: 4584113 (1986-04-01), Walsh

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