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Title:
ゲル数が減少し、反応器汚損が少ないエチレン系ポリマーを生成する方法
Document Type and Number:
Japanese Patent JP6823647
Kind Code:
B2
Abstract:
Ethylene-based polymer is made by a process comprising polymerizing a reaction mixture comprising ethylene and at least one chain transfer agent system; wherein the polymerization takes place in the presence of at least one free-radical initiator; and wherein the polymerization takes place in a reactor configuration comprising at least one tubular reactor with at least three reaction zones; and wherein at least two reaction zones receive an ethylene feed; and wherein the degree of polymerization in the first reaction zone is less than, or equal to, (5/LCBf)*3150; and wherein the ethylene-based polymer formed by the process comprises the following properties: (A) LCBf≥(4.7+0.5*log(I2)); and (B) I2 from 0.2 to 25 dg/min.

Inventors:
Otto Barbie
Stefan Hinrichs
Ni Dan
Jürgen Seebratt
Cornelius F. Jay Den Dorder
Application Number:
JP2018511379A
Publication Date:
February 03, 2021
Filing Date:
September 20, 2016
Export Citation:
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Assignee:
Dow Global Technologies LLC
International Classes:
C08F10/02
Domestic Patent References:
JP2012505292A
JP2014530935A
JP2015501863A
JP2017502131A
JP2018532862A
Attorney, Agent or Firm:
Hiroshi Kobayashi
Eiji Katayama
Norio Omori
Go Arai
Yasuhito Suzuki