KR950701355A - Process for producing thermally stable polyoxymethylene copolymers and their use - Google Patents

Process for producing thermally stable polyoxymethylene copolymers and their use

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Publication number
KR950701355A
KR950701355A KR1019940703762A KR19940703762A KR950701355A KR 950701355 A KR950701355 A KR 950701355A KR 1019940703762 A KR1019940703762 A KR 1019940703762A KR 19940703762 A KR19940703762 A KR 19940703762A KR 950701355 A KR950701355 A KR 950701355A
Authority
KR
South Korea
Prior art keywords
alkali metal
metal fluoride
copolymer
process according
fluoride
Prior art date
Application number
KR1019940703762A
Other languages
Korean (ko)
Inventor
로이쉘 게르하르트
디터 자벨 한스
플라이쉐르 디트리히
가오루 야마모토
나가요시 마에다
마코토 가미야
도시로 무라오
Original Assignee
카흐홀쯔, 루츠
훽스트 아크티엔게젤샤프트
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
Priority claimed from DE19924242900 external-priority patent/DE4242900A1/en
Application filed by 카흐홀쯔, 루츠, 훽스트 아크티엔게젤샤프트 filed Critical 카흐홀쯔, 루츠
Publication of KR950701355A publication Critical patent/KR950701355A/en

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Classifications

    • 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
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/28—Post-polymerisation treatments

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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

본 발명은 공중합 완료 후에 알칼리 금속 불화물을 공중합체와 접촉시켜 중합 촉매를 탈활성화시킴을 특징으로하여, 양이온성 활성 촉매를 사용하여 주요 단량체로서의 트리옥산과 공단량체로서의 사이클릭 에테르 또는 사이클릭 포르말을 공중합시켜 폴리옥시 메틸렌 공중합체를 제조하는 방법에 관한 것이다. pH값 7.0이상에서 처리를 수행하여 열 안정성이 증진된 폴리옥시메틸렌 공중합체를 제조한다.The present invention is characterized by deactivation of a polymerization catalyst by contacting an alkali metal fluoride with a copolymer after completion of the copolymerization. It relates to a method for producing a polyoxy methylene copolymer by copolymerizing. The treatment is performed at a pH value of 7.0 or higher to prepare a polyoxymethylene copolymer having enhanced thermal stability.

Description

열 안정성 폴리옥시메틸렌 공중합체의 제조방법 및 이의 용도(Process for producing thermally stable polyoxymethylene copolymers and their use)Process for producing thermally stable polyoxymethylene copolymers and their use

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

Claims (12)

공중합 완료 후에 알칼리 금속 불화물을 공중합체와 접속시켜 중합 촉매를 탈활서화시킴을 특징으로하여, 양이온성 활성 촉매를 사용하여 주요 단량체로서의 트리옥산과 공단량체로서의 사이클릭 에테르 또는 사이클릭 포르말을 공중합시켜 폴리옥시케틸렌 공중합체를 제조하는 방법.After the completion of the copolymerization, the alkali metal fluoride is connected to the copolymer to deactivate the polymerization catalyst. Process for preparing polyoxyketylene copolymers. 제1항에 있어서, 알칼리 금속 불화물이 첨가되어 pH 값이 7.0 이상인 수성 가수분해 용액속에서 조악한 중합체를 가열함을 특징으로 하는 방법.The method of claim 1, wherein an alkali metal fluoride is added to heat the crude polymer in an aqueous hydrolysis solution having a pH value of 7.0 or greater. 제1항 내지 제2항에 있어서, 알칼리 금속 불화물 형태의 플루오라이드 이온을 20내지 400ppm, 바람직하게는 100내지 300ppm, 특히 150내지 250ppm의 양으로 가수분해 용액에 가하는 방법.The process according to claim 1, wherein the fluoride ions in the form of alkali metal fluoride are added to the hydrolysis solution in an amount of 20 to 400 ppm, preferably 100 to 300 ppm, in particular 150 to 250 ppm. 제1항 내지 제3항중의 어느 한 항에 있어서, 알칼리 금속 불화물과 염기성 물질의 혼합물을 공중합체와 접촉시키는 방법.The method of claim 1, wherein the mixture of alkali metal fluoride and basic material is contacted with the copolymer. 제4항에 있어서, 나트륨, 칼륨, 또는 칼슘의 수산화물, 바람직하게는 알킬 그룹중의 탄소수가 1내지 6인 트리알킬 아민을 가하는 방법.Process according to claim 4, wherein a trialkyl amine having sodium, potassium or calcium hydroxide, preferably having 1 to 6 carbon atoms in the alkyl group. 제5하엥 있어서, 트리에틸아민, 트리에탄올아민, 트리이소프로판올아민 또는 N,N-디에틸렌에틸아민을 가하는 방법.The method according to claim 5, wherein triethylamine, triethanolamine, triisopropanolamine or N, N-diethyleneethylamine are added. 제1항 내지 제6항 중의 어느 한 항에 있어서, 알칼리 금속 불화물이 Li, Na, K, Rb 및 Cs중에서 선택된 알칼리 금 속의 하나 이상의 불화물인 방법.The method of claim 1, wherein the alkali metal fluoride is one or more fluorides in an alkali metal selected from Li, Na, K, Rb and Cs. 제1항 내지 제7항중의 어느 한 항에 있어서, 사용된 알칼리 금속 불화물이 불화칼륨인 방법.The process according to any one of claims 1 to 7, wherein the alkali metal fluoride used is potassium fluoride. 제1항 내지 제8항중의 어느 한 항에 있어서, 알칼리 금속 불화물을 물 및/또는 유기 용매중의 용액으로 제형화시킨 다음, 이를 공중합체와 접촉시키는 방법.The method according to claim 1, wherein the alkali metal fluoride is formulated in a solution in water and / or an organic solvent and then contacted with the copolymer. 제1항 내지 제9항중의 어느 한 항에 있어서, 수성 가수분해 용액이 추가로 C1-C4-알콜, 트리옥산 및/또는 디옥솔란을 함유하는 방법.The process according to claim 1, wherein the aqueous hydrolysis solution further contains C 1 -C 4 -alcohol, trioxane and / or dioxolane. 제1항 내지 제10항중의 어느 한 항에 있어서, 폴리 옥시메틸렌 공중합체를 170 내지 220℃, 바람직하게는 180 내지 200℃의 온도에서 2내지 20분, 바람직하게는 5 내지 15분 동안 처리하는 방법.The polyoxymethylene copolymer is treated for 2 to 20 minutes, preferably 5 to 15 minutes, at a temperature of 170 to 220 ° C, preferably 180 to 200 ° C. Way. 성형물을 제조하기 위한, 제1항 내지 제11항 중의 어느 한 항에 따르는 방법으로 수득한 폴리옥시메틸렌 공중합체의 용도.Use of a polyoxymethylene copolymer obtained by the process according to any one of claims 1 to 11 for producing shaped articles. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940703762A 1992-04-24 1993-04-22 Process for producing thermally stable polyoxymethylene copolymers and their use KR950701355A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP10670592 1992-04-24
JPWP92/106705GH 1992-04-24
DE19924242900 DE4242900A1 (en) 1992-12-18 1992-12-18 Thermally stable polyoxymethylene copolymers prepn.
DEWPP4242900.5GH 1992-12-18
PCT/EP1993/000979 WO1993022359A1 (en) 1992-04-24 1993-04-22 Process for producing thermally stable polyoxymethylene copolymers and their use

Publications (1)

Publication Number Publication Date
KR950701355A true KR950701355A (en) 1995-03-23

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EP (1) EP0637322A1 (en)
KR (1) KR950701355A (en)
WO (1) WO1993022359A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5965379A (en) * 1991-07-19 1999-10-12 Cytimmune Sciences Inc. Method for measuring endogenous cytokines
JP5829569B2 (en) * 2012-04-23 2015-12-09 旭化成ケミカルズ株式会社 Process for producing polyacetal copolymer
EP3820942A1 (en) 2018-07-13 2021-05-19 Basf Se Method for the production of stable polyoxymethylene copolymers (cpom)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248939B (en) * 1967-08-31 Badische Anilin- &. Soda-Fabrik Aktiengesellschaft, Ludwigshafen/Rhem Process for working up copolymers of trioxane
NL125851C (en) * 1963-09-28
US3640945A (en) * 1967-10-10 1972-02-08 Basf Ag Thermal stability of copolymers of trioxane
IT1076228B (en) * 1977-01-17 1985-04-27 Sir Soc Italiana Resine Spa PROCEDURE FOR IMPROVING THE STABILITY OF ETERIFIED ACETAL HOMOPOLYMERS

Also Published As

Publication number Publication date
EP0637322A1 (en) 1995-02-08
WO1993022359A1 (en) 1993-11-11

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