Environmentally friendly grease compositions

Details Environmentally friendly grease compositions Environmentally friendly grease compositions

1992-01-06

1992-10-13

Howard, Jacqueline

Compositions

Electrolytes for electrical devices

252 39, 252 18, C10M12530, C10M14102

Patent

active

051548402

ABSTRACT:
The present invention provides an environmentally friendly grease composition. The base components of this lubricating composition include a white mineral oil in the amount of about 65 to about 85% by weight based on total weight of the composition, an extreme pressure additive comprising a solid friction modifier in an amount of about 1 to about 20 wt %, a thickener and a minor amount of one or more oil dispersible additives in amounts sufficient to enhance the performance characteristics of the greases. Each of the extreme pressure additive, thickener, and the one or more oil dispersible additives is essentially free of heavy metals, particularly arsenic, antimony, barium, cadmium, chromium, copper, iron, lead, mercury, molybdenum, nickel, selenium, vanadium and zinc. The greases of the present invention meet or exceed the EPA acceptance standards in effect during 1991 which are defined by the static sheen test and the 96-hour Mysidopsis bahia (shrimp) tests for offshore and inland water use.

REFERENCES:
patent: 4784795 (1988-11-01), Fahl
patent: 4909951 (1990-03-01), Mendelson et al.
patent: 4960740 (1990-10-01), House et al.

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