Deashing process for polyolefins using an alpha,beta-unsaturated

Details Deashing process for polyolefins using an alpha,beta-unsaturated Deashing process for polyolefins using an alpha,beta-unsaturated

1993-07-12

1994-07-19

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

C08F 608

Patent

active

053310861

ABSTRACT:
A dicarbonyl compound and an alpha,beta-unsaturated ketone are used to deactivate a transition metal/organometal catalyst in polymerization of at least one monomer to form a 1-olefin polymer. The polymer is deashed with a lower alcohol optionally followed by a wash with the starting monomer or n-heptane.

REFERENCES:
patent: 3014019 (1961-12-01), Czenkusch
patent: 3318857 (1967-05-01), Dietz
patent: 3332920 (1967-07-01), Clark
patent: 3342794 (1967-09-01), Buchanan
patent: 3423384 (1969-01-01), Hagemeyer et al.
patent: 3489735 (1970-01-01), Clark
patent: 4051313 (1977-09-01), Luciani et al.

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