Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
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.
Arai Toshiharu
Furuya Yoshikane
Kamizono Tetsushi
Miyake Masao
Onogi Seiji
Levin Stanford M.
Mitsubishi Chemical Industries Ltd.
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