Sulfurized mannich bases as lubricating oil dispersant

Details Sulfurized mannich bases as lubricating oil dispersant Sulfurized mannich bases as lubricating oil dispersant

1975-06-06

1977-05-24

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 47, C10M 138

Patent

active

040254518

ABSTRACT:
Dispersancy, wear and corrosion properties of lubricating oil are improved by addition of a product made by mixing at about 50.degree.-300.degree. C about 1-20 parts of sulfur with about 100 parts of the condensation product made by reacting a high molecular weight alkylphenol, formaldehyde and a reactive amine. Excess sulfur is preferably removed.

REFERENCES:
patent: 2652367 (1953-09-01), Adelson
patent: 3368972 (1968-02-01), Otto
patent: 3451166 (1969-06-01), Panzer
patent: 3600327 (1971-08-01), Hu
patent: 3600372 (1971-08-01), Udelhofen et al.
patent: 3904595 (1975-09-01), Plonsker et al.

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