Process for separating components of a polymer-monomer mixture obtained by high-pressure polymerization of ethylenically unsaturated monomers

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United States of America Patent

PATENT NO 9931608
SERIAL NO

15523909

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Abstract

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A process for separating polymeric and gaseous components of a polymer-monomer mixture at a pressure of from 0.12 MPa to 0.6 MPa and a temperature of from 120° C. to 300° C. in a separation vessel is provided. The separation vessel has a vertically arranged cylindrical shape with a ratio of length to diameter L/D of from 0.6 to 10 and an inlet pipe capable of introducing the polymer-monomer mixture into the separation vessel which the inlet pipe extends vertically from the top of the separation vessel into the separation vessel. Further a process for preparing ethylene homopolymers or copolymers from ethylenically unsaturated monomers in the presence of free-radical polymerization initiators at temperatures from 100° C. to 350° C. and pressures in the range of from 110 MPa to 500 MPa comprising such a process for separating a polymer-monomer mixture is provided.

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Patent Owner(s)

Patent OwnerAddress
BASELL POLYOLEFINE GMBH50389 WESSELING

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Deuerling, Michael Weilerswist, DE 17 36
Fibla, Claudio Königstein im Taunus, DE 10 14
Finette, Andre-Armand Köln, DE 22 61
Groos, Georg Dannstadt-Schauernheim, DE 12 64
Khayrullin, Danir Brühl, DE 13 26
Littmann, Dieter Mücke, DE 38 181
Mohrbutter, Juergen Alfter, DE 8 8
Wolf, Christoph Pulheim-Dansweiler, DE 21 98
Wolfram, Sven Euskirchen, DE 7 25

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