KR960000946A - Process for preparing oxymethylene copolymer - Google Patents

Process for preparing oxymethylene copolymer Download PDF

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Publication number
KR960000946A
KR960000946A KR1019950015573A KR19950015573A KR960000946A KR 960000946 A KR960000946 A KR 960000946A KR 1019950015573 A KR1019950015573 A KR 1019950015573A KR 19950015573 A KR19950015573 A KR 19950015573A KR 960000946 A KR960000946 A KR 960000946A
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South Korea
Prior art keywords
oxymethylene copolymer
copolymer
dioxolane
trioxane
copolymerization reaction
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KR1019950015573A
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Korean (ko)
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KR100270820B1 (en
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아끼가즈 아마가이
다까오 곤도
젠빠이 미즈따니
마사히꼬 이시가와
사또시 나가이
다이고 나까야
쥰이찌 아베
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니시까와 레이찌
미쓰비시가스가가꾸 가부시끼가이샤
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Publication of KR960000946A publication Critical patent/KR960000946A/en
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Publication of KR100270820B1 publication Critical patent/KR100270820B1/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/08—Saturated oxiranes
    • C08G65/10—Saturated oxiranes characterised by the catalysts used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
    • C08L59/04—Copolyoxymethylenes

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Abstract

삼불화붕소 이의 배위 화합물로 구성된 군으로부터 선택된 1종 이상의 개환 공중합체 촉매가, 1,3-디옥소란에 대해 0.0008 내지 0.003의 몰비로 존재하는 조건하에서 트리옥산 및 트리옥산에 대하여 3 내지 7몰%의 1,3-디옥소란을 90%이상의 증합 수율로 공중합시킴을 특징으로 하는 옥시메틸렌 공중합체의 제조방법. 상기의 제법에 의한 옥시메틸렌 공중합체는 소량의 불안정한 부분 및 고 결정화 속도를 갖는다.3 to 7 moles relative to trioxane and trioxane under conditions in which at least one ring-opening copolymer catalyst selected from the group consisting of boron trifluoride coordination compounds is present in a molar ratio of 0.0008 to 0.003 for 1,3-dioxolane A method for producing an oxymethylene copolymer, characterized in that copolymerization of% 1,3-dioxolane in a yield of 90% or more. The oxymethylene copolymer according to the above production method has a small amount of unstable portion and high crystallization rate.

Description

옥시메틸렌 공중합체의 제조방법Process for preparing oxymethylene copolymer

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (8)

삼불화붕소 및 이의 배위 화합물로 구성된 군으로부터 선택된 1종 이상의 개환 공중합체 촉매가, 1,3-디옥소란에 대해 0.0008 내지 0.003의 몰비로 존재하는 조건하에 트리옥산 및 트리옥산에 대하여 3 내지 7몰%의 1,3-디옥소란을 90%이상의 중합 수율로 공중합시킴을 특징으로 하는 옥시메틸렌 공중합체의 제조방법.At least one ring-opening copolymer catalyst selected from the group consisting of boron trifluoride and coordination compounds thereof is 3 to 7 with respect to trioxane and trioxane under conditions in which the molar ratio of 0.0008 to 0.003 is present for 1,3-dioxolane A method for producing an oxymethylene copolymer, characterized by copolymerizing mol% 1,3-dioxolane in a polymerization yield of at least 90%. 제1항에 있어서, 중합 수율이 90%이상 도달했을때, 생성된 옥시메틸렌 공중합체를 중합 촉매의 비활성화제와 접촉시켜 공중합반응으로 종결시키는 제조방법.The method according to claim 1, wherein when the polymerization yield reaches 90% or more, the produced oxymethylene copolymer is contacted with an inactivating agent of the polymerization catalyst to terminate the copolymerization reaction. 제2항에 있어서, 비활성화제가 3차 아민인 제조방법.The process of claim 2 wherein the deactivator is a tertiary amine. 제2항에 있어서, 비활성화제가 트리페닐 포스핀인 제조 방법.The method of claim 2, wherein the deactivator is triphenyl phosphine. 제2항에 있어서, 공중합 반응의 종결로 수득한 옥시메틸렌 공중합체가, 1용적%의 트리-n-부틸아민을 함유하는 벤질 알코올중에서 2시간 동안 160℃로 중합체를 열처리하는 방법으로 측정한 불안정한 부분을 10중량%이하로 함유하는 제조 방법.The unstable oxymethylene copolymer obtained by the end of the copolymerization reaction is measured by heat treatment of the polymer at 160 ° C. for 2 hours in benzyl alcohol containing 1% by volume of tri-n-butylamine. The manufacturing method containing 10 weight% or less of a part. 제2항에 있어서, 공중합 반응의 종결로 수득한 옥시메틸렌 공중합체를 불안정한 부분을 제거시키기 위해 안정화 처리하는 제조방법.The process according to claim 2, wherein the oxymethylene copolymer obtained by the end of the copolymerization reaction is stabilized to remove unstable portions. 제6항에 있어서, 옥시메틸렌 공중합체의 융점 내지 융점보다 100℃높은 온도범위 및 760 내지 0.1mmHg의 압력에서 옥시메닐렌 공중합체를 용융 반죽시켜 안정화 처리를 행하는 제조 방법.The production method according to claim 6, wherein the oxymenylene copolymer is melt-kneaded at a temperature range of 100 ° C higher than the melting point to the melting point of the oxymethylene copolymer and a pressure of 760 to 0.1 mmHg to perform stabilization treatment. 제7항에 있어서, 통기구를 갖는 2개의 단축 또는 다중 스크류 압출기, 또는 통기구를 갖는 단축 또는 다중 스크류 압출기 및 표면 갱신형 혼합기를 조합시킨 장치로 안정화 처리를 행하는 제조방법.8. The production method according to claim 7, wherein the stabilization treatment is performed by an apparatus combining two single screw or multiple screw extruders having a vent or a single screw or multiple screw extruder having a vent and a surface update mixer. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950015573A 1994-06-13 1995-06-13 Process for preparing polyoxymethylene KR100270820B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13037994 1994-06-13
JP94-130379 1994-06-13

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KR960000946A true KR960000946A (en) 1996-01-25
KR100270820B1 KR100270820B1 (en) 2000-11-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100583255B1 (en) * 1999-06-05 2006-05-24 주식회사 케이티피 Trioxan composition, polyacetal resin obtained through polymerization of trioxan composition, and method for producing the resin

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0662730B2 (en) * 1987-09-08 1994-08-17 東レ株式会社 Method for producing oxymethylene copolymer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100583255B1 (en) * 1999-06-05 2006-05-24 주식회사 케이티피 Trioxan composition, polyacetal resin obtained through polymerization of trioxan composition, and method for producing the resin

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