Title:
オキシメチレン共重合体の製造方法
Document Type and Number:
Japanese Patent JP7036025
Kind Code:
B2
Abstract:
The present invention addresses the problem of providing a method for producing an oxymethylene copolymer, which is capable of producing an oxymethylene copolymer having a high molecular weight with high yield and high economic efficiency. This problem is able to be solved by a method for producing an oxymethylene copolymer, in which a copolymer starting material containing a trioxane and a comonomer is subjected to a polymerization reaction in the presence of a polymerization initiator that contains an acidic compound (A), and wherein: the copolymer starting material contains a basic compound (B); an acidic compound (C) that is different from the acidic compound (A) is added into the copolymer starting material before performing the polymerization reaction, thereby causing a reaction between the basic compound (B) and the acidic compound (C) in advance; and the polymerization reaction is carried out by means of melt polymerization.
Inventors:
Toru Takahashi
Daigo Nakatani
Kensuke Oshima
Daisuke Sunaga
Daigo Nakatani
Kensuke Oshima
Daisuke Sunaga
Application Number:
JP2018549095A
Publication Date:
March 15, 2022
Filing Date:
November 06, 2017
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
C08G2/10
Domestic Patent References:
| JP9302055A |
Foreign References:
| WO2015002147A1 | ||||
| WO2016104065A1 |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Kyoei Sugiyama
Mitsuru Hakoda
Yasuhito Suzuki
Kyoei Sugiyama
Mitsuru Hakoda
Yasuhito Suzuki
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