Dithiophosphates as antiwear additives

Details Dithiophosphates as antiwear additives Dithiophosphates as antiwear additives

1993-10-21

1994-07-12

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 785, 558162, 558187, C10M13704

Patent

active

053286219

ABSTRACT:
The invention relates to novel compounds of formulae I, II and III ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.20 alkyl or C.sub.5 -C.sub.7 cycloalkyl, R.sub.2 is hydrogen, C.sub.1 -C.sub.20 alkyl or C.sub.5 -C.sub.7 cycloalkyl, and R.sub.3 is C.sub.1 -C.sub.18 alkyl or C.sub.3 -C.sub.18 alkenyl. The compounds are used as antiwear additives for lubricants.

REFERENCES:
patent: 4153562 (1979-05-01), Jaruzelski
patent: 4322303 (1982-03-01), Rosenberger
patent: 4349445 (1982-09-01), Rosenberger
patent: 4729840 (1988-03-01), Lange et al.
patent: 5026493 (1991-06-01), Lam et al.
Chem. Abst. 115 (18): 186461x (1991).

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