KR960007517A - Polymerization prevention method of vinyl aromatic compound or vinyl aliphatic compound - Google Patents

Polymerization prevention method of vinyl aromatic compound or vinyl aliphatic compound Download PDF

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Publication number
KR960007517A
KR960007517A KR1019950025347A KR19950025347A KR960007517A KR 960007517 A KR960007517 A KR 960007517A KR 1019950025347 A KR1019950025347 A KR 1019950025347A KR 19950025347 A KR19950025347 A KR 19950025347A KR 960007517 A KR960007517 A KR 960007517A
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KR
South Korea
Prior art keywords
nitrosophenol
compound
vinyl
oxyl
hydroxy
Prior art date
Application number
KR1019950025347A
Other languages
Korean (ko)
Inventor
카일 토마스
카우프홀트 만프레드
헬파프 베른트
Original Assignee
우베 페터스·한스-요아힘 쉬베르트페거
휠스 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.)
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Publication date
Application filed by 우베 페터스·한스-요아힘 쉬베르트페거, 휠스 아크티엔게젤샤프트 filed Critical 우베 페터스·한스-요아힘 쉬베르트페거
Publication of KR960007517A publication Critical patent/KR960007517A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B63/00—Purification; Separation; Stabilisation; Use of additives
    • C07B63/04—Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/62—Use of additives, e.g. for stabilisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/20—Use of additives, e.g. for stabilisation
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K15/00—Anti-oxidant compositions; Compositions inhibiting chemical change
    • C09K15/04—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds
    • C09K15/30—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds containing heterocyclic ring with at least one nitrogen atom as ring member

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Materials Engineering (AREA)
  • Polymerisation Methods In General (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Hydrogenated Pyridines (AREA)

Abstract

본 발명은 공기를 배제시킨 상태에서 승온에서 비닐 방향족 화합물 및 비닐지방족 화합물의 증합반응을 방지하는 방법에 관한 것이다. 본 발명에서 사용되는 방지제는 4-하이드록시-2,2,6,6-테트라메틸피페리딘-N-옥실 단독이거나, 이와 p-니트로소페놀 또는 2-메틸-4-니트로소페놀과의 혼합물이다.The present invention relates to a method for preventing the polymerization reaction of a vinyl aromatic compound and a vinyl aliphatic compound at an elevated temperature in the state of excluding air. The inhibitor used in the present invention is 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl alone or with p-nitrosophenol or 2-methyl-4-nitrosophenol. Mixture.

Description

비닐방향족 화합물 또는 비닐지방족 화합물의 중합 방지법Polymerization prevention method of vinyl aromatic compound or vinyl aliphatic compound

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

Claims (5)

공기를 배제시킨 상태에서 방지제 도는 방지제 혼합물을 승온에서 가하여 비닐방향족 화합물 및 비닐지방족 화합물의 증합반응을 방지하는 방법에 있어서, 사용되는 방지제가 4-하이드록시-2,2,6,6-테트라메틸피페리딘-N-옥실 단독이거나, 이와 p-니트로소페놀 또는 2-메틸-4-니트로소페놀과의 배합물임을 특징으로 하는 방법.In a method of preventing the polymerization reaction of a vinylaromatic compound and a vinyl aliphatic compound by adding an inhibitor or an inhibitor mixture at an elevated temperature with no air, the inhibitor used is 4-hydroxy-2,2,6,6-tetramethyl. Piperidine-N-oxyl alone or in combination with p-nitrosophenol or 2-methyl-4-nitrosophenol. 제1항에 있어서, 4-하이드록시-2,2,6,6-테트라메틸 피페리딘-N-옥실 대 p-니트로소페놀 또는 2-메틸-4-니트로소페놀의 비가 90:10 내지 10:90임을 특징으로 하는 방법.The method of claim 1 wherein the ratio of 4-hydroxy-2,2,6,6-tetramethyl piperidine-N-oxyl to p-nitrosophenol or 2-methyl-4-nitrosophenol is from 90:10 to 10:90. 제1항에 있어서, 4-하이드록시-2,2,6,6-테트라메틸 피페리딘-N-옥실 대 p-니트로소페놀 또는 2-메틸-4-니트로소페놀의 비가 50:50임을 특징으로 하는 방법.The method of claim 1 wherein the ratio of 4-hydroxy-2,2,6,6-tetramethyl piperidine-N-oxyl to p-nitrosophenol or 2-methyl-4-nitrosophenol is 50:50. How to feature. 제1항 내지 제3항 중의 어느 한 항에 있어서, 4-하이드록시-2,2,6,6-테트라메틸 피페리딘-N-옥실 또는 4-하이드록시-2,2,6,6-테트라메틸 피페리딘-N-옥실과 p-니트로소페놀 또는 2-메틸-4-니트로소페놀과의 배합물이, 비닐방향족 화합물 또는 비닐지방족 화합물을 기준으로 하여, 50 내지 200ppm의 양으로 사용됨을 특징으로 하는 방법.The compound according to any one of claims 1 to 3, wherein 4-hydroxy-2,2,6,6-tetramethyl piperidine-N-oxyl or 4-hydroxy-2,2,6,6- The combination of tetramethyl piperidine-N-oxyl and p-nitrosophenol or 2-methyl-4-nitrosophenol is used in an amount of 50 to 200 ppm based on the vinylaromatic or vinylaliphatic compound. How to feature. 제1항 내지 제4항 중의 어느 한 항에 있어서, 방지제 또는 방지제 혼합물이 90 내지 140℃에서 효과적임을 특징으로 하는 방법.The method of claim 1, wherein the inhibitor or inhibitor mixture is effective at 90 to 140 ° C. 6. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950025347A 1994-08-19 1995-08-18 Polymerization prevention method of vinyl aromatic compound or vinyl aliphatic compound KR960007517A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP4429485.9 1994-08-19
DE4429485 1994-08-19
DE19515450A DE19515450A1 (en) 1994-08-19 1995-04-27 Inhibition of the polymerization of vinyl aromatic or vinyl aliphatic compounds
DE19515450.9 1995-04-27

Publications (1)

Publication Number Publication Date
KR960007517A true KR960007517A (en) 1996-03-22

Family

ID=6526114

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950025347A KR960007517A (en) 1994-08-19 1995-08-18 Polymerization prevention method of vinyl aromatic compound or vinyl aliphatic compound

Country Status (2)

Country Link
KR (1) KR960007517A (en)
DE (2) DE19515450A1 (en)

Also Published As

Publication number Publication date
DE59504317D1 (en) 1999-01-07
DE19515450A1 (en) 1996-02-22

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