Polyimide based resin composition comprising cured phenolic resins and liquid crystal polymers

A polyimide-based resin composition for sliding materials comprising from 3 to 50 parts by weight of a cured phenolic resin and from 1 to 25 parts by weight of a solid lubricant for 100 parts by weight of a resin composition comprising rom 50% to 99% by weight of a polyimide resin having recurring units represented by the formula (II):

• ##STR41## wherein X is a divalent radical selected from the group consisting of a direct bond, divalent hydrocarbon having from 1 to 10 carbon atons, hexafluorinated isopropylidene, carbonyl, thio and sulfonyl, and R is a tetravalent radical selected from the group consisting of an aliphatic radical having two or more carbon atoms, alicyclic radical, monoaromatic radical, condensed polyaromatic radical, and noncondensed aromatic radical connected to each other with a direct bond or a bridge member, and from 50% to 1% by weight of one or more thermotropic liquid crystal polymer having a fundamental structure of the formulas (V), (VI), (VII) and/or (VIII):
• ##STR42##