Grease composition

摘要

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.

主权项

1. A grease composition comprising:
a base oil; a thickener; and an unsaturated or saturated fatty acid amine salt having the general formula (1):
RCOO− R′NH3+  (1) 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; wherein the total amount of the unsaturated or saturated fatty acid amine salt is in the range of from 1 to 5% by mass relative to the total amount of the grease composition.