Chemical reaction product of sulfur, lard oil and polyisobutylen

Details Chemical reaction product of sulfur, lard oil and polyisobutylen Chemical reaction product of sulfur, lard oil and polyisobutylen

1971-04-26

1979-09-04

Vaughn, Irving

Compositions

Electrolytes for electrical devices

260125, 260139, 260399, C10M 138, C10M 332, C07G 1700

Patent

active

041667956

ABSTRACT:
A synthetic sulfurized oil, useful as an additive to lubricants, and especially as a replacement for sulfurized sperm oil, is produced by reaction of sulfur, lard oil and polyisobutylene oligimers containing at least one pair of maximally crowded geminal methyl groups (e.g. "tetraisobutylene"). Preferably, sufficient sulfur to obtain a final sulfurized product containing in the range of about 5-25 weight percent sulfur is reacted with a mixture comprising about 30-90 parts by weight of lard oil and 70-10 parts of the polyisobutylene. Minor amounts (e.g. up to about 15 weight percent) of other unsaturated hydrocarbons (e.g. "C.sub.18 olefin") can also be present in the mixture.

REFERENCES:
patent: 2222643 (1940-11-01), Zimmer
patent: 2312750 (1943-03-01), Cohen
patent: 2386222 (1945-10-01), Lincoln et al.
patent: 2577636 (1951-12-01), Sperry
patent: 3455896 (1969-07-01), Herder et al.

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