JPS6475526A - Production of oxymethylene copolymer - Google Patents

Production of oxymethylene copolymer

Info

Publication number
JPS6475526A
JPS6475526A JP23334287A JP23334287A JPS6475526A JP S6475526 A JPS6475526 A JP S6475526A JP 23334287 A JP23334287 A JP 23334287A JP 23334287 A JP23334287 A JP 23334287A JP S6475526 A JPS6475526 A JP S6475526A
Authority
JP
Japan
Prior art keywords
pref
boron trifluoride
prepolymerization
trioxane
ethylene oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP23334287A
Other languages
Japanese (ja)
Other versions
JPH0621139B2 (en
Inventor
Shigeru Okita
Toshihiro Hatsu
Yoshiyuki Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP23334287A priority Critical patent/JPH0621139B2/en
Publication of JPS6475526A publication Critical patent/JPS6475526A/en
Publication of JPH0621139B2 publication Critical patent/JPH0621139B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Polyethers (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Abstract

PURPOSE:To obtain the titled copolymer of high degree of polymerization in a short time in high yield, by prepolymerization of ethylene oxide in the presence of a specific catalyst followed by contact with trioxane. CONSTITUTION:(A) Polyoxyethylene active polymer (solution) with a number- average mol.wt. of 100-20,000 prepared by prepolymerization of ethylene oxide (pref. at -30-10 deg.C) using, as the catalyst, a boron trifluoride hydrate and/or a coordinate compound from boron trifluoride and oxygen- or sulfur atom-contg. organic compound (pref. boron trifluoride-diethyl ether complex) is brought into contact with (B) trioxane (pref. made to react at 65-110 deg.C) to obtain the objective oxymethylene copolymer.
JP23334287A 1987-09-17 1987-09-17 Method for producing oxymethylene copolymer Expired - Lifetime JPH0621139B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23334287A JPH0621139B2 (en) 1987-09-17 1987-09-17 Method for producing oxymethylene copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23334287A JPH0621139B2 (en) 1987-09-17 1987-09-17 Method for producing oxymethylene copolymer

Publications (2)

Publication Number Publication Date
JPS6475526A true JPS6475526A (en) 1989-03-22
JPH0621139B2 JPH0621139B2 (en) 1994-03-23

Family

ID=16953646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23334287A Expired - Lifetime JPH0621139B2 (en) 1987-09-17 1987-09-17 Method for producing oxymethylene copolymer

Country Status (1)

Country Link
JP (1) JPH0621139B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4605904B2 (en) * 1998-09-24 2011-01-05 旭化成ケミカルズ株式会社 Polyoxymethylene copolymer and composition thereof
JP2011246611A (en) * 2010-05-27 2011-12-08 Asahi Kasei Chemicals Corp Method of producing modified polyacetal copolymer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4605904B2 (en) * 1998-09-24 2011-01-05 旭化成ケミカルズ株式会社 Polyoxymethylene copolymer and composition thereof
JP2011246611A (en) * 2010-05-27 2011-12-08 Asahi Kasei Chemicals Corp Method of producing modified polyacetal copolymer

Also Published As

Publication number Publication date
JPH0621139B2 (en) 1994-03-23

Similar Documents

Publication Publication Date Title
EP0243969A3 (en) Process for alkylene oxide polymerization
EP0818472A3 (en) Cyclic olefin copolymers, compositions and molded articles comprising the copolymers
EP0675138A4 (en) Polymerization catalyst and process for producing polymer using the same.
ES422768A1 (en) Production of antisera comprising fractionating plasma or serum with an ethylene oxide-polyoxypropylene block copolymer
JPS6475526A (en) Production of oxymethylene copolymer
CA2032669A1 (en) Process for incorporating o-hydroxyphenyl-s-triazines in organic polymers
JPS5215588A (en) Process for polymerizing liquid olefin polymers
JPS55115417A (en) Manufacture of propylene copolymer
EP0606492A4 (en) Process for producing tetrafluoroethylene/hexafluoropropylene copolymer.
JPS5391992A (en) Production of olefin polymer
EP0283972A3 (en) Process for production of ethylene-based copolymers
JPS573804A (en) Production of ethylene copolymer
JPS5330686A (en) Preparation of ethylene-propylene block copolymers
EP0187034A3 (en) Process for producing poly-1-butene
Price et al. The polymerization and copolymerization of trioxane
FR2388834A1 (en) PROCESS FOR MANUFACTURING SALTS OF HYDROXYCARBOXYL POLYMERS OF REDUCED MOLECULAR MASS
JPS57179180A (en) Novel cyclic formal
JPS57117521A (en) Preparation of stable polyacetal
JPS6411102A (en) Isobutylene polymer and production thereof
JPS5432597A (en) Purification of high molecular weight alkylene oxide polymer
JPS5373519A (en) Preparation of reactive monomer
JPS54139697A (en) Preparation of stabilized polyoxymethylene
JPS5672014A (en) Production of polyacetal copolymer
GB2022106A (en) Preparation of copolyether glycols
JPS5428383A (en) Production of ethylene copolymer rubber