Title:
幅広い分子量分布を有するポリエチレンの製造
Document Type and Number:
Japanese Patent JP4373508
Kind Code:
B2
Abstract:
A process for producing high density polyethylene in the presence of a Ziegler-Natta catalyst system in two liquid full loop reactors in series, wherein in a first reactor a first polyethylene product is polymerised substantially by homopolymerisation of ethylene and hydrogen, optionally with a minor degree of copolymerisation of ethylene with an alpha-olefinic comonomer comprising from 3 to 8 carbon atoms, and in a second reactor serially connected to the first reactor downstream thereof a second polyethylene product is copolymerised from ethylene and an alpha-olefinic comonomer comprising from 3 to 8 carbon atoms, and a hydrogenation catalyst is introduced into the reactants downstream of the first reactor.
Inventors:
Guy Debras
Michelle Messiaen
Michelle Messiaen
Application Number:
JP28865798A
Publication Date:
November 25, 2009
Filing Date:
September 28, 1998
Export Citation:
Assignee:
Total Petrochemicals Research Ferry Yui
International Classes:
C08F2/00; C08F4/642; C08F2/06; C08F8/04; C08F10/02; C08F210/02; C08F210/06; C08F210/16; C08F297/08
Domestic Patent References:
| JP51047079A | ||||
| JP1131204A | ||||
| JP9216913A | ||||
| JP64001709A | ||||
| JP57126805A | ||||
| JP8504883A |
Attorney, Agent or Firm:
Patent business corporation Odashima patent office
Heigo Odashima
Heigo Odashima