Title:
PRODUCTION METHOD OF OXYMETHYLENE POLYMER
Document Type and Number:
Japanese Patent JP2022121962
Kind Code:
A
Abstract:
To provide a production method of an oxymethylene polymer capable of producing an oxymethylene polymer in a polymerization vessel continuously and stably.SOLUTION: A method for continuously producing an oxymethylene polymer includes an introduction step of introducing a raw material and a liquid containing a catalyst into a polymerization vessel using a double pipe composed of an inner pipe and an outer pipe, and a reaction step of reacting the raw material and the catalyst in the polymerization vessel to produce an oxymethylene polymer. In the introduction step, the raw material flows between the inner pipe and the outer pipe of the double pipe, whereas the liquid containing the catalyst flows inside the inner pipe of the double pipe. The inner pipe has an appearance of the tip part getting thinner toward the tip end.SELECTED DRAWING: None
Inventors:
KIHARA YUICHI
KONDO TOMOHIRO
KONDO TOMOHIRO
Application Number:
JP2021018971A
Publication Date:
August 22, 2022
Filing Date:
February 09, 2021
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
C08G2/00
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Koichiro Kami
Mitsutsugu Sugimura
Koichiro Kami
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