Multifunctional tetrapolymer lube oil additive

Details Multifunctional tetrapolymer lube oil additive Multifunctional tetrapolymer lube oil additive

1972-03-10

1977-05-03

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

C10M 132

Patent

active

040213579

ABSTRACT:
A tetrapolymer of a first alkyl methacrylate of the formula: ##STR1## a second alkyl methacrylate of the formula: ##STR2## a third alkyl methacrylate of the formula: ##STR3## and a N, N-dialkylaminoalkyl methacrylamide of the formula: ##STR4## where R is alkyl of from 1 to 5 carbons, R.sup.1 is alkyl of from 10 to 15 carbons, R.sup.2 is alkyl of from 16 to 20 carbons, R.sup.3 and R.sup.4 are alkyl of from 1 to 2 carbons and A is a divalent alkylene radical of from 2 to 4 carbons, and hydrocarbon lubricating oil compositions containing dispersant and VI improving amounts of said tetrapolymer.

REFERENCES:
patent: 2613184 (1952-10-01), Catlin
patent: 2998414 (1961-08-01), West et al.
patent: 3400075 (1968-09-01), Grimm et al.

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