Mannich additives modified by ditertiary alkyl phenol

Details Mannich additives modified by ditertiary alkyl phenol Mannich additives modified by ditertiary alkyl phenol

1979-04-09

1980-12-30

Metz, Andrew

Compositions

Electrolytes for electrical devices

44 58, 44 75, 252 515A, 260566R, C10M 132

Patent

active

042422124

ABSTRACT:
Mannich additives formed from a 2,4- or 2,6-ditertiary alkyl "hindered" phenol, a polyamine, a formaldehyde-yielding reagent and at least one substantially hydrocarbon compound with at least one active or acidic hydrogen selected from the group consisting of a para mono-alkyl phenol, and an oxidized olefinic polymer, are improved Mannich additives for high temperature internal combustion engine lubrication.

REFERENCES:
patent: 2504742 (1950-04-01), Smith et al.
patent: 2962442 (1960-11-01), Andress, Jr.
patent: 2962531 (1960-11-01), Coffield
patent: 3036003 (1962-05-01), Verdol
patent: 3368972 (1968-02-01), Otto
patent: 3544520 (1970-12-01), Culbertson et al.
patent: 3872019 (1975-03-01), Culbertson et al.
patent: 3948619 (1976-04-01), Worrel
patent: 4025316 (1977-11-01), Stover

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