New phosphosulfides compounds and use thereof as oil lubricants

摘要

Useful as additive for lubricating oils are novel phosphosulphur compounds in accordance with the general formula (I): (((R1-Sx-Oy-A-)rBv)pP(X)-Yt-)qZm in which e.g. R1 represents an alkyl or alkenyl group, A represents the group -(CH2)n-O-, B represents the group -P(S)-S-CH2-(CH3)-O-, X represents an oxygen atom or a sulphur atom, Y represents an oxygen atom, a sulphur atom or an oxygen or sulphur-containing hydrocarbon chain, Z represents a hydrogen, chlorine or sulphur atom, a polysulphide chain, a metal or an alkyl or alkenyl group, x=1,2 or 3, y=0, 1 or 2, v is 0 or 1, r is 1 (if v=0) or r=2 (if v=1), p=2 or 3, t=0 or 1, m=0,1 or 2, q=the valency of Z if Z is a metal or q=1 or 2 and n is an integer from 1 to 30.