Bisdithiophosphoric acid derivatives as lubricant additives

Details Bisdithiophosphoric acid derivatives as lubricant additives Bisdithiophosphoric acid derivatives as lubricant additives

C - Chemistry, Metallurgy

07

F

C07F 9/165 (2006.01) C07F 9/547 (2006.01) C10M 137/10 (2006.01) C10M 167/00 (2006.01)

Patent

CA 2097383

There are disclosed compounds of formula I (see formula I) wherein R1 and R2 are each independently of the other C3-C18alkyl, C5-C12cycloalkyl, C5-C6cycloalkylmethyl, C9-C10bicycloalkylmethyl, C9-C10tricycloalkylmethyl, phenyl, C7-C24alkylphenyl or, taken together, are (see formula II) R3 is C2-C18alkylene which is interrupted by -O-, -S-, or -NR4-, or is a group of formula (see formula III) or (see formula IV) R4 is hydrogen, C1-C18alkyl, phenyl-C1-C4alkyl, phenyl or C1-C6alkyl- substituted phenyl, R5 is hydrogen or methyl. These compounds are particularly suitable for use as additives for lubricant compositions, hydraulic fluids and machining fluids.

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