Visosity index improver

Details Visosity index improver Visosity index improver

1989-10-12

1991-11-26

Willis, Jr., Prince

Compositions

Electrolytes for electrical devices

252 56R, 525 64, 525 66, 525285, 525301, 5253276, 5253277, 5253295, 5253296, 5253299, 5253301, C10M14918, C10M14522

Patent

active

050680471

ABSTRACT:
Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains. The degraded copolymers are useful as viscosity index improvers for oils.

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