N-N'-dihydrocarbyl substituted phenylene diamine-derived condens

Details N-N'-dihydrocarbyl substituted phenylene diamine-derived condens N-N'-dihydrocarbyl substituted phenylene diamine-derived condens

1989-07-19

1990-10-30

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

564305, 564306, 252401, C10M13312

Patent

active

049667211

ABSTRACT:
N-N'-dihydrocarbyl substituted phenylenediamine-derived Mannich-type condensation products are effective antioxidants for lubricants.

REFERENCES:
patent: 2361391 (1944-10-01), Fraser et al.
patent: 2432713 (1947-12-01), Bartleson
patent: 3189650 (1965-06-01), Chenicek
patent: 3238177 (1966-03-01), Chenicek
patent: 3623984 (1971-11-01), Carlos et al.
patent: 4202782 (1980-05-01), Doe, Jr. et al.

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