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

1984-12-17

1986-03-11

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

585 12, 585522, 585523, C07C 202

Patent

active

045755744

ABSTRACT:
An ethylene ter- or tetrapolymer useful as a viscosity modifier 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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