| abstract |
A lubricant grease composition comprising is disclosed. The composition includes: n (a) an oil or oil mixture of one or more ester of aromatic tricarboxylic or tetracarboxylic acids with an alcohol or a mixture of alcohols having the general composition C n H 2n+1 OH with n=7 to 22 and/or one or more of the esters of trimethylolpropane, pentaerythritol or dipentaerythritol with aliphatic carboxylic acids having the general composition C n H 2n+1 COOH with n=6 to 21, n (b) a thickening agent comprising a biurea and/or polyurea, and n (c) a wear-protecting additive comprising a mixture of the components triaryl phosphorothionate, C 8 -C 20 alkylamino monohexyl and dihexyl phosphate and C 1 -C 8 -alkylamino isobutyl phospate. |