JPS5780414A - Shortstopping of polymerization reaction - Google Patents

Shortstopping of polymerization reaction

Info

Publication number
JPS5780414A
JPS5780414A JP15785880A JP15785880A JPS5780414A JP S5780414 A JPS5780414 A JP S5780414A JP 15785880 A JP15785880 A JP 15785880A JP 15785880 A JP15785880 A JP 15785880A JP S5780414 A JPS5780414 A JP S5780414A
Authority
JP
Japan
Prior art keywords
crude polymer
polymer
shortstop
polymerization catalyst
crude
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
JP15785880A
Other languages
Japanese (ja)
Other versions
JPS5851014B2 (en
Inventor
Akira Amamiya
Tadashi Kunii
Tomonori Furusawa
Mutsuhiko Takeda
Katsumasa Tanaka
Toshikazu Umemura
Yoshihiro Ono
Isamu Masumoto
Noriyasu Nakao
Masanori Furukawa
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co 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 Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP55157858A priority Critical patent/JPS5851014B2/en
Publication of JPS5780414A publication Critical patent/JPS5780414A/en
Publication of JPS5851014B2 publication Critical patent/JPS5851014B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prevent the depolymerization of a crude polymer obtained by polymerizing trioxan, by adding a specified amount of a shortstop to the crude polymer and, thereafter, pulverizing the polymer.
CONSTITUTION: A crude polymer is obtained by polymerizing trioxan or its mixture with a cyclic ether and/or a cyclic acetal in the presence of at least one polymerization catalyst selected from the group consisting of BF3 (hydrate) and a coordinated complex between an O- and S-containing organic compound and BF3. Next, this crude polymer is mixed with a shortstop which deactivates the polymerization catalyst by forming a complex with it, e.g., ethylamine, or its organic solvent solution in an amount, as shortstop, corresponding to 0.5W 30 times, by mol, the polymerization catalyst and to 0.01W5wt% of the crude polymer. The resulting mixture is pulverized within 2hr so that the proportion of the polymer particles passing through a 10-mesh (ASTM) screen is 100%.
COPYRIGHT: (C)1982,JPO&Japio
JP55157858A 1980-11-10 1980-11-10 How to stop polymerization reaction Expired JPS5851014B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55157858A JPS5851014B2 (en) 1980-11-10 1980-11-10 How to stop polymerization reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55157858A JPS5851014B2 (en) 1980-11-10 1980-11-10 How to stop polymerization reaction

Publications (2)

Publication Number Publication Date
JPS5780414A true JPS5780414A (en) 1982-05-20
JPS5851014B2 JPS5851014B2 (en) 1983-11-14

Family

ID=15658912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55157858A Expired JPS5851014B2 (en) 1980-11-10 1980-11-10 How to stop polymerization reaction

Country Status (1)

Country Link
JP (1) JPS5851014B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6363741A (en) * 1986-09-05 1988-03-22 Toray Ind Inc Oxymethylene copolymer composition
JPH03128911A (en) * 1989-10-16 1991-05-31 Asahi Chem Ind Co Ltd Stabilized polyacetal resin molding and its preparation
US5726276A (en) * 1995-10-02 1998-03-10 Polyplastics Co., Ltd. Process for preparing polyacetal copolymer
US5866670A (en) * 1995-08-21 1999-02-02 Polyplastics Co., Ltd. Process for preparing polyacetal copolymer
CN1105127C (en) * 1996-09-30 2003-04-09 汎塑料株式会社 Process for producing stabilized oxymethylene copolymer
US7812110B2 (en) 2005-12-24 2010-10-12 Ticona Gmbh Process for preparation of oxymethylene polymers, selected polymers, and their use

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185134U (en) * 1983-05-27 1984-12-08 株式会社クボタ Structure of engine exhaust treatment section of work vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55157857A (en) * 1979-05-28 1980-12-08 Tokyo Shibaura Electric Co Reflecting type lamp
JPS55164212A (en) * 1979-05-18 1980-12-20 Mitsubishi Gas Chem Co Inc Continuous polymerization of oxymethylene (co) polymer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55164212A (en) * 1979-05-18 1980-12-20 Mitsubishi Gas Chem Co Inc Continuous polymerization of oxymethylene (co) polymer
JPS55157857A (en) * 1979-05-28 1980-12-08 Tokyo Shibaura Electric Co Reflecting type lamp

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6363741A (en) * 1986-09-05 1988-03-22 Toray Ind Inc Oxymethylene copolymer composition
JPH0643544B2 (en) * 1986-09-05 1994-06-08 東レ株式会社 Oxymethylene copolymer composition
JPH03128911A (en) * 1989-10-16 1991-05-31 Asahi Chem Ind Co Ltd Stabilized polyacetal resin molding and its preparation
US5866670A (en) * 1995-08-21 1999-02-02 Polyplastics Co., Ltd. Process for preparing polyacetal copolymer
CN1078218C (en) * 1995-08-21 2002-01-23 汎塑料株式会社 Process for preparing polyacetal copolymer
US5726276A (en) * 1995-10-02 1998-03-10 Polyplastics Co., Ltd. Process for preparing polyacetal copolymer
CN1105127C (en) * 1996-09-30 2003-04-09 汎塑料株式会社 Process for producing stabilized oxymethylene copolymer
US7812110B2 (en) 2005-12-24 2010-10-12 Ticona Gmbh Process for preparation of oxymethylene polymers, selected polymers, and their use

Also Published As

Publication number Publication date
JPS5851014B2 (en) 1983-11-14

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