Dispersant Mannich base compositions

Details Dispersant Mannich base compositions Dispersant Mannich base compositions

1978-05-01

1979-12-11

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 475, 252 515R, 2605705P, C10M 154

Patent

active

041782593

ABSTRACT:
New Mannich bases and their alkaline earth metal salts are prepared by condensing formaldehyde and a polyamine with a sulfur-containing phenolic mixture consisting of (1) from 5 to 40% of a sulfurized alkylphenol; and (2) from 95 to 60% of phenol alkylated with polyisobutene of 16 to 128 carbon atoms or a mixture of said phenol alkylated with polyisobutene and phenol alkylated with a propylene tetramer. They are useful as additives for lubricating oils, particularly for use in marine cylinder lubricating oils.

REFERENCES:
patent: 2353491 (1944-07-01), Oberright
patent: 3368972 (1968-02-01), Otto
patent: 3586629 (1971-06-01), Otto et al.
patent: 3736357 (1973-05-01), Piasek et al.
patent: 3741896 (1973-06-01), Abbott et al.
patent: 3809648 (1974-05-01), Hotten

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