Mannich dispersant VI-improver blended with phenolic compound fo

Details Mannich dispersant VI-improver blended with phenolic compound fo Mannich dispersant VI-improver blended with phenolic compound fo

1987-03-30

1989-02-28

Dixon, Jr., William R.

Compositions

Electrolytes for electrical devices

252 515R, C10M15916

Patent

active

048083259

ABSTRACT:
Improved dispersant and VI-improving Mannich composition having reduced susceptibility to viscosity increase during storage, which composition comprises a physical blend prepared by admixing a phenolic compound with a Mannich condensation product obtained from the Mannich reaction of an oxidized polymer, an amine and a formaldehyde-yielding reagent.

REFERENCES:
patent: 3789003 (1974-01-01), McCoy
patent: 3793351 (1974-02-01), McCoy
patent: 3872019 (1975-03-01), Culbertson et al.
patent: 4131553 (1978-12-01), West
patent: 4142980 (1979-03-01), Karll et al.
patent: 4170562 (1979-10-01), West
patent: 4178259 (1979-12-01), King

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