4-Vinylpyridine polymethacrylate containing lube oil composition

Details 4-Vinylpyridine polymethacrylate containing lube oil composition 4-Vinylpyridine polymethacrylate containing lube oil composition

1976-11-02

1978-03-28

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 33, 252 336, 252 427, 252 515A, C10M 148, C10M 342, C10M 524, C10M 746

Patent

active

040813851

ABSTRACT:
A fully formulated crankcase lubricating oil composition containing between about 0.1 and 10 wt. % of a tetrapolymer of 4-vinylpyridine (4-VP), a first alkyl methacrylate of the formula: ##STR1## a second alkyl methacrylate of the formula: ##STR2## and a third alkyl methacrylate of the formula: ##STR3## where R is alkyl of from 1 to 6 carbons, R.sup.1 is alkyl of from 10 to 15 carbons and R.sup.2 is alkyl of from 16 to 20 carbons, of a molecular weight between about 25,000 and 2,500,000 having a component ratio of 4-VP:C.sub.1 to C.sub.6 alkyl methacrylate:C.sub.10 -C.sub.15 alkyl methacrylate:C.sub.16 -C.sub.20 alkyl methacrylate of between about 2:10:78:10 and 10:30:30:30 and between about 0.1 and 5 wt. % of a calcium containing rust inhibitor, said composition having a sulfated metal ash content of between about 0.05 and 1 wt. %.

REFERENCES:
patent: 2839512 (1958-06-01), Barnum et al.
patent: 3438897 (1969-04-01), Henderson
patent: 3892671 (1975-07-01), Song et al.
patent: 4021357 (1977-05-01), Morduchowitz et al.

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