Polyester viscosity index improver

Details Polyester viscosity index improver Polyester viscosity index improver

1989-03-17

1994-05-24

McAvoy, Ellen M.

Compositions

Electrolytes for electrical devices

560199, C10M12995

Patent

active

053146344

ABSTRACT:
The invention provides a polyester based on dimeric fatty acid, a glycol without hydrogen atoms at an alpha carbon atom in which a C3-C12 monoalcohol chainstopper is present and which contains approximately equivalent quantities of acid and alcohol groups. Preferably the dimer acid contains 36 carbon atoms and the monoalcohol is a branched chain C6-C10 alkanol. The invention also provides lubricant compositions comprising 30-2% (w.w.) of the polyester and 70-98% (w.w.) of an synthetic lubricant base.

REFERENCES:
patent: 3086044 (1963-04-01), Kerschner et al.
patent: 3194791 (1965-07-01), Wilson et al.
patent: 3202701 (1965-08-01), Young et al.
patent: 3472775 (1969-04-01), Boehringer
patent: 4689429 (1987-08-01), Mertz et al.

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