Patent ID: 6660695
Filing Date: 2003-12-09
Classification: C10M,C10N

Abstract:
A power transmission fluid composition comprising a mixture of:(1) a major amount of a lubricating oil; and (2) an effective amount of a performance enhancing additive combination comprising: (a) an organic phosphate having the structure: R1â€”X2â€”P(:X1)(R2X3)â€”Xâ€”R5 where R1 and R2 may independently be substituted or unsubstituted alkyl, aryl, alkylaryl or cycloallyl having 1 to 24 carbon atoms and X, X1, X2 and X3 may independently be sulfur or oxygen; R1 and R2 may also contain chlorine, sulfur, oxygen or nitrogen; wherein R5 is derived from a reactive olefin and can be either â€”CH2â€”CHRâ€”C(:O)Oâ€”R6; â€”CH2â€”CR7HR8; or R9â€”OC(:O)CH2â€”CHâ€”C(:O)Oâ€”R10 where R is H or the same as R1, R6, R7, R9 and R10 are the same as R1 and R8 is a phenyl or alkyl or allenyl substituted phenyl moiety, the moiety having from 6 to 30 carbon atoms; (b) a calcium detergent; and (c) a friction modifier.