Title:
エチレンポリマーの気相製造プロセス
Document Type and Number:
Japanese Patent JP7314275
Kind Code:
B2
Abstract:
A process for preparation of an ethylene polymer in a gas-phase polymerization unit comprising a gas-phase polymerization reactor by homopolymerizing ethylene or copolymerizing ethylene and one or more C4-C12-1-alkenes in a reaction gas made from or containing propane as polymerization diluent in the presence of a pre-activated polymerization catalyst, wherein a purified propane feed stream made from or containing at least 99 mol % propane and from 0.1 to 100 ppm mol propylene is fed to the gas-phase polymerization unit.
Inventors:
Penzo, Giusuppe
Meyer, Gerhardas
Schuller, Wolf
Vita, Pietro
Mei, Giuria
Dam, Elke
Meyer, Gerhardas
Schuller, Wolf
Vita, Pietro
Mei, Giuria
Dam, Elke
Application Number:
JP2021533719A
Publication Date:
July 25, 2023
Filing Date:
December 16, 2019
Export Citation:
Assignee:
Basel, Polyolefin, Game Beher
International Classes:
C08F2/34; C07C7/00; C07C7/163; C08F2/01; C08F10/02
Domestic Patent References:
| JP2008528776A | ||||
| JP2013129606A | ||||
| JP2004537617A | ||||
| JP2017078171A |
Foreign References:
| WO2016121622A1 |
Attorney, Agent or Firm:
Toshiaki Eto
Previous Patent: Video picture decoding and encoding method and apparatus
Next Patent: HOLDING AND TRANSFERRING DEVICE AND METHOD THEREFOR
Next Patent: HOLDING AND TRANSFERRING DEVICE AND METHOD THEREFOR