PROCESS FOR THERMAL DEGRADATION OF POLYMER

Title:

PROCESS FOR THERMAL DEGRADATION OF POLYMER

Document Type and Number:

WIPO Patent Application WO/1991/015521

Kind Code:

A1

Abstract:

A process for the thermal degradation of polymer, which comprises feeding the polymer to an extruder for melting, transferring the molten polymer at a constant rate to a tubular thermal degradation reactor through a constant rate transferring means connected to the extruder, and thermally degrading the polymer in the reactor. This process allows a low-molecular polymer with a high quality to be produced continuously with a simple apparatus in a simple step. Particularly it is possible to obtain a high-quality thermal degradation wax with a good hue and a reduced content of foreign matter continuously in a stabilized manner for a long period of time by thermally degrading an olefinic polymer in a simple apparatus and efficiently removing the formed volatile component from the reaction mixture.

Inventors:

MIURA EIGO (JP)
YAMANAKA TAKASHI (JP)
OHORI RYOJI (JP)
OHDAIRA AKIO (JP)

Application Number:

PCT/JP1991/000471

Publication Date:

October 17, 1991

Filing Date:

April 10, 1991

Export Citation:

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Assignee:

MITSUI PETROCHEMICAL IND (JP)

International Classes:

B01J19/24; C08F6/00; C08F8/50; (IPC1-7): C08F6/00; C08F8/50

Foreign References:

JPS439368B1
JPS368737B1

Other References: