JPS6475526A - Production of oxymethylene copolymer - Google Patents
Production of oxymethylene copolymerInfo
- 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
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.
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)
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 |
-
1987
- 1987-09-17 JP JP23334287A patent/JPH0621139B2/en not_active Expired - Lifetime
Cited By (2)
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 |
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