Title:
COMPRESSION OF ETHYLENE-BASED UNSATURATED MONOMER
Document Type and Number:
Japanese Patent JP3774779
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable precipitate formation to be diminished due to too rapid polymerization of the subject monomer during its compression by conducting the compression in the presence of a sterically hindered amine derivative.
SOLUTION: An ethylene-based unsaturated monomer is compressed under a pressure of 200-5,000 bar in the absence of any polymerization initiator but in the presence of a sterically hindered amine derivative. In this case, it is preferable that 0.0001-0.1wt.%, based on the monomer, of an N-oxyl compound of e.g. the formula (R is an alkyl, cycloalkyl, aralkyl, etc.) in combination with the amine derivative, the temperature during the compression is 20-140°C, and an auxiliary stabilizer is used.
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Inventors:
Heinz Friedrich Zutlis
Alexander Aumuller
Andreas Koch
Andreas Deckers
Eckart Schause
Logger Crimesh
Aren't You King
Wilhelm Weber
Alexander Aumuller
Andreas Koch
Andreas Deckers
Eckart Schause
Logger Crimesh
Aren't You King
Wilhelm Weber
Application Number:
JP14438297A
Publication Date:
May 17, 2006
Filing Date:
June 03, 1997
Export Citation:
Assignee:
Basel, Polyolefin, Gezel Shaft, Mitt, Beschlenktel, Haftung
International Classes:
C08F2/34; C07B63/04; C07C7/20; C07C11/04; C07C51/50; C08F2/38; C08F2/40; C08F10/00; C08F210/02; (IPC1-7): C08F2/34; C08F2/40
Domestic Patent References:
| JP63186710A | ||||
| JP52119694A | ||||
| JP52119693A | ||||
| JP61126050A | ||||
| JP4233907A | ||||
| JP4288302A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard