Antioxidant additive and lubricating oil containing same

Details Antioxidant additive and lubricating oil containing same Antioxidant additive and lubricating oil containing same

1988-03-31

1993-01-19

McAvoy, Ellen

Compositions

Electrolytes for electrical devices

252 475, 252402, C10M13500, C10M13300

Patent

active

051805103

ABSTRACT:
An additive for improving the antioxidation properties of lubricating oil is made by reacting a sulfur halide selected from sulfur monochloride or sulfur dichloride with an aliphatic monoolefin (e.g. isobutene) to form an adduct, reacting the adduct thus formed with an alkali metal salt of an organocarbamodithioic acid in an aqueous alkanol medium and recovering the reaction product.
When added to lubricating oil, the additive products of the invention improve the antioxidation properties of the lubricating oil.

REFERENCES:
patent: 2609389 (1952-09-01), Flenner
patent: 2719827 (1955-10-01), Lowe
patent: 3579516 (1971-05-01), Albert
patent: 3833496 (1974-09-01), Malec
patent: 3853775 (1974-12-01), Williams
patent: 3876550 (1975-04-01), Holubec
patent: 4204969 (1980-05-01), Papay et al.
patent: 4207196 (1980-06-01), Sudekum
patent: 4501678 (1985-02-01), Katayama et al.
patent: 4618461 (1986-10-01), Bergman et al.
patent: 4740322 (1988-04-01), DiBiase et al.
patent: 4758362 (1988-07-01), Butke

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