Title:
プロピレンホモポリマーおよびコポリマーを製造する方法および装置
Document Type and Number:
Japanese Patent JP3852957
Kind Code:
B2
Abstract:
Described herein is a process and an apparatus for preparing propylene homopolymers and copolymers, which comprises polymerizing propylene optionally with comonomers in the presence of a catalyst at elevated temperature and pressure in at least one slurry reactor and at least one gas phase reactor, the polymerization product of at least one slurry reactor, containing unreacted monomers, being conducted to a first gas phase reactor essentially without recycling of the unreacted monomers to the slurry reactor. The invention provides for fast start-ups because the gas phase bed material is available directly from the loop reactor.
Inventors:
Harrin, Ali
Alastaro, Kauno
Korhonen, bait
Kivere, Youni
Alastaro, Kauno
Korhonen, bait
Kivere, Youni
Application Number:
JP50385399A
Publication Date:
December 06, 2006
Filing Date:
June 24, 1998
Export Citation:
Assignee:
Borealis A/S
International Classes:
C08F2/02; B01J8/26; B01J19/24; C08F2/00; C08F2/34; C08F10/06; C08F210/06; C08F297/08; C08F110/06
Domestic Patent References:
| JP58111806A | ||||
| JP1501007A | ||||
| JP2002504955A |
Foreign References:
| US4740551 | ||||
| US4740550 |
Attorney, Agent or Firm:
Mitsuo Matsui