Alkaline earth metal salt dispersions in acrylic polymers

Details Alkaline earth metal salt dispersions in acrylic polymers Alkaline earth metal salt dispersions in acrylic polymers

1977-03-24

1978-10-31

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 56R, 252 515A, 252389R, 252400R, C10M 110, C10M 302, C10M 502, C10M 702

Patent

active

041233689

ABSTRACT:
This invention relates to colloidal dispersions of an alkaline earth metal salt in an oil-soluble acrylic polymer which is polymerized from a monomer system of at least one alkyl or hetero-substituted alkyl ester of an acrylic monomer selected from the group consisting of methacrylates and acrylates represented by the formula: ##STR1## wherein R.sup.1 is a --CH.sub.3 or --H radical, and R.sup.2 is selected from the group consisting of C.sub.1-30 alkyl and hetero-substituted alkyl radicals. This invention also relates to colloidal dispersions as described hereinabove wherein the monomer system further includes at least one non-acrylic polymerizable ethylenically unsaturated nitrogen-containing compound. Preferred polymerizable ethylenically unsaturated nitrogen-containing compounds are those selected from the group consisting of 2- and 4-vinylpyridines and N-vinyl-2-pyrrolidinones. Further, this invention relates to finished lubricating oil compositions wherein the metal salt-polymer dispersions are incorporated into lubricating oil compositions, either alone or in combination with other oil additives, whereby the metal salt-polymer colloidal dispersions impart improved properties to the finished lubricating oil compositions.

REFERENCES:
patent: 3262880 (1966-07-01), Voorhees
patent: 3313727 (1967-04-01), Peeler
patent: 3451931 (1969-06-01), Kahn et al.
patent: 3515669 (1970-06-01), Le Suer
patent: 3567637 (1971-03-01), Sabol
patent: 3783131 (1974-01-01), Le Suer
patent: 3842009 (1974-10-01), Barry et al.
patent: 3959164 (1976-05-01), Sabol
patent: 4057504 (1977-11-01), Shiga et al.

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