Process for preparing polyolefin

Details Process for preparing polyolefin Process for preparing polyolefin

1975-06-10

1977-06-14

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

260 23H, 526106, 526116, 528499, C08F 600

Patent

active

040298779

ABSTRACT:
In a process for preparing a polyolefin without separation of catalyst residues by polymerizing an olefin in the pres ence of a Ziegler catalyst having high catalytic activity, in an inert gas sealing system; an improvement comprises separating the polyolefin containing the catalyst residue from the polymerization mixture, and contacting the polyolefin containing the catalyst residue with a weak reactive gas of oxygen and/or steam diluted with an inert gas.

REFERENCES:
patent: 2838477 (1958-06-01), Roelen et al.
patent: 2918461 (1959-12-01), Flynn
patent: 3110708 (1963-11-01), Wisseroth et al.
patent: 3496156 (1970-02-01), Luciani et al.

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