Grease composition

Abstract

A grease composition for use in resin lubrication wherein at least one amine salt of an unsaturated or saturated fatty acid is incorporated in a grease base material which includes a base oil and a thickener, preferably wherein at least one fatty acid amine salt of the following general formula (1) is incorporated: RCOO− R′ NH3+ wherein either (i) R is an unsaturated hydrocarbon group having from 15 to 21 carbon atoms, and R′ is a saturated or unsaturated linear or branched hydrocarbon group having from 8 to 22 carbon atoms; or (ii) R is a linear saturated hydrocarbon group having from 5 to 21 carbon atoms, and R′ is an unsaturated hydrocarbon group having from 16 to 18 carbon atoms. The grease composition of the present invention improves the lubricity between resin and resin or resin. and another material such as a metal.

Dependencies are inferred from the claim text.