Polymeric step ladder polysuccinimide compositions suitable for

Details Polymeric step ladder polysuccinimide compositions suitable for Polymeric step ladder polysuccinimide compositions suitable for

1989-10-30

1991-11-05

Willis, Jr., Prince

Compositions

Electrolytes for electrical devices

548520, C10M13316, C10M13358, C10M14918

Patent

active

050629808

ABSTRACT:
Polymeric step ladder polysuccinimide compositions prepared by coupling the polyamine segments of polyalkenyl succinimides with dicarboxylic acids are useful as improved lubricating oil dispersants which are more compatible with engine seals made of synthetic rubbers such as Viton.RTM. than existing additives.

REFERENCES:
patent: 3374174 (1968-03-01), LeSuer
patent: 4663064 (1987-05-01), Nalesnik et al.
patent: 4973412 (1990-11-01), Migdal et al.

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