Phenylenediamine-derived phosphonates as multifunctional additiv

Details Phenylenediamine-derived phosphonates as multifunctional additiv Phenylenediamine-derived phosphonates as multifunctional additiv

1992-02-28

1992-12-15

Howard, Jacqueline

Compositions

Electrolytes for electrical devices

2524002, C10M13702

Patent

active

051714655

ABSTRACT:
A lubricant contains an antioxidant and antiwear amount of a Mannich base reaction product of a phenylenediamine, such as N,N'-dihydrocarbyl substituted phenylenediamine, an aldehyde or ketone and a dialkyl-substituted phosphonate such as dimethyl hydrogen phosphonate or bis(2-ethylhexyl) hydrogen phosphonate.

REFERENCES:
patent: 3549728 (1970-12-01), Balde et al.
patent: 4016092 (1977-04-01), Andress
patent: 4331546 (1982-05-01), Frangatos
patent: 4563299 (1986-01-01), Frangatos
patent: 4615826 (1986-10-01), Erdman
patent: 4806130 (1989-02-01), Chibnik

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