Ethylene polymer useful as a lubricating oil viscosity modifier

Details Ethylene polymer useful as a lubricating oil viscosity modifier Ethylene polymer useful as a lubricating oil viscosity modifier

1985-10-09

1987-05-19

Dixon, Jr., William R.

Compositions

Electrolytes for electrical devices

585520, 585522, 585 12, C10M10108

Patent

active

046666192

ABSTRACT:
An ethylene ter- or tetrapolymer useful as a viscosity modifer and a process for preparing the polymer. The polymer comprises ethylene, an alpha-olefin, a non-conjugated diene and, optionally, a cationically polymerizable monoolefin. The polymerization catalyst comprises a Ziegler catalyst in conjunction with a cationic polymerization catalyst.

REFERENCES:
patent: 3790480 (1974-02-01), Campbell et al.
patent: 3894999 (1975-07-01), Boozer et al.
patent: 4197420 (1980-04-01), Ferraris et al.
patent: 4469910 (1984-09-01), Loveless

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