Title:
ポリアセタール共重合体の製造方法
Document Type and Number:
Japanese Patent JP6383261
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a polyacetal copolymer capable of efficiently manufacturing the polyacetal copolymer less in debris and having high purity.SOLUTION: There is provided a manufacturing method of a polyacetal copolymer having a stabilization process for conducting a terminal stabilization of a polyacetal copolymer (1) in a terminal stabilization zone of an extruder (A) having the terminal stabilization zone and an additive dispersion zone, a mixing process for mixing a polyacetal copolymer (2) and an additive by an extruder (B) to obtain a mixture and a supply process for supplying the mixture to the extruder (A) to a terminal stabilized polyacetal copolymer (1) in the additive dispersion zone, where screw rotation number of the extruder (B) Nb is higher than screw rotation number of the extruder (A) Na.SELECTED DRAWING: None
Inventors:
Tomohiro Kondo
Application Number:
JP2014230887A
Publication Date:
August 29, 2018
Filing Date:
November 13, 2014
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
C08J3/20; C08G2/30; C08L59/04
Domestic Patent References:
| JP2007246592A | ||||
| JP201694524A |
Foreign References:
| WO1996023825A1 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito