Phosphosulfurized hydrocarbon modified N-(hydroxy and alkyl-subs

Details Phosphosulfurized hydrocarbon modified N-(hydroxy and alkyl-subs Phosphosulfurized hydrocarbon modified N-(hydroxy and alkyl-subs

1976-04-07

1977-06-21

Demers, Arthur P.

Compositions

Electrolytes for electrical devices

252 475, 260125, 260136, 260981, C09B 4900

Patent

active

040310175

ABSTRACT:
This invention relates to a novel lubricant oil addition agent which is a phosphosulfurized C.sub.35 to C.sub.160 hydrocarbon modified N-(hydroxy and C.sub.50 - C.sub.160 alkyl-substituted benzyl) alkylene polyamine. Such novel addition agent imparts anti-oxidant and unexpected dispersancy functions to lubricant oils commonly used as crankcase lubricants for internal combustion engines. Such novel addition agent also imparts anti-oxidant and detergency functions to the less viscous oils used to lubricate automatic transmissions and at the same time prevent failure of the rubber seals used therein from deterioration (hardening) by oxidation and distortion softening by undue swelling. The present inventive addition agent unexpectedly provides both detergency and an anti-oxidant functions for lubricant oil which are superior to the related analog addition agent derived from the reaction of one molar proportion of a phosphosulfurized 500 to 2800 (Staudinger) molecular weight hydrocarbon with from 0.5 up to 4 molar proportion of an N-(hydroxy and C.sub.4 - C.sub.24 alkyl-substituted benzyl) alkylene polyamine.

REFERENCES:
patent: 3368972 (1968-02-01), Otto
patent: 3458495 (1969-07-01), Younghouse
patent: 3957746 (1976-05-01), Malec
patent: 3985802 (1976-10-01), Piasek et al.

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