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Title:
METHOD FOR PRODUCING OXYMETHYLENE COPOLYMER
Document Type and Number:
Japanese Patent JP2006096899
Kind Code:
A
Abstract:

To provide a method for continuously producing at a high yield an oxymethylene copolymer having a high polymerization degree and excellent thermal stability.

The method for producing oxymethylene copolymer comprises using one or more of serially connected self-cleaning type reactors having a scraping mechanism scraping reaction products each other, and copolymerizing 4-50 pts.wt. comonomer with 100 pts.wt. trioxane to continuously produce the oxymethylene copolymer, wherein the rotation speed of the agitating shaft of the first reactor is ≥35 m/min as the rotational peripheral speed of puddle tips.


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Inventors:
OKAMURA AKIRA
SUNAGA DAISUKE
YAGUCHI KAZUYOSHI
FURUKAWA MASANORI
NAKATANI DAIGO
Application Number:
JP2004285921A
Publication Date:
April 13, 2006
Filing Date:
September 30, 2004
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL CO
International Classes:
C08G2/18
Domestic Patent References:
JPH0465414A1992-03-02
JPH02147616A1990-06-06
JPS5659824A1981-05-23
JPS5638313A1981-04-13
JPS5638312A1981-04-13
JPH0641261A1994-02-15
Attorney, Agent or Firm:
Takashi Nagai



 
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