RU99115780A - COMPOSITION AND METHOD FOR INHIBITING POLYMERIZATION DURING ANAEROBIC PRODUCTION OF STYROL - Google Patents

COMPOSITION AND METHOD FOR INHIBITING POLYMERIZATION DURING ANAEROBIC PRODUCTION OF STYROL

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Publication number
RU99115780A
RU99115780A RU99115780/04A RU99115780A RU99115780A RU 99115780 A RU99115780 A RU 99115780A RU 99115780/04 A RU99115780/04 A RU 99115780/04A RU 99115780 A RU99115780 A RU 99115780A RU 99115780 A RU99115780 A RU 99115780A
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RU
Russia
Prior art keywords
phenylenediamine
styrene
nitroxide
combination
composition
Prior art date
Application number
RU99115780/04A
Other languages
Russian (ru)
Other versions
RU2198157C2 (en
Inventor
Винсент Э. ЛЬЮИС
Original Assignee
Налко/Эксон Энерджи Кемикалз, Л.П.
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 US08/953,427 external-priority patent/US5955643A/en
Application filed by Налко/Эксон Энерджи Кемикалз, Л.П. filed Critical Налко/Эксон Энерджи Кемикалз, Л.П.
Publication of RU99115780A publication Critical patent/RU99115780A/en
Application granted granted Critical
Publication of RU2198157C2 publication Critical patent/RU2198157C2/en

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Claims (10)

1. Способ ингибирования полимеризации во время анаэробного получения стирола, который включает стадию ввода эффективного количества комбинации устойчивого соединения с нитрооксидными радикалами и фенилендиаминового соединения.1. A method of inhibiting polymerization during anaerobic styrene production, which comprises the step of introducing an effective amount of a combination of a stable compound with nitroxide radicals and a phenylenediamine compound. 2. Способ по п.1, отличающийся тем, что устойчивое соединение с нитрооксидными свободными радикалами является 4-гидроокси-2,2,6,6-тетраметилпиперидин-1-оксилом. 2. The method according to claim 1, characterized in that the stable compound with nitroxide free radicals is 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl. 3. Способ по п.1, отличающийся тем, что фенилендиаминовое соединение является бис(1,4-диметилпентил)-п-фенилендиамином. 3. The method according to claim 1, characterized in that the phenylenediamine compound is bis (1,4-dimethylpentyl) -p-phenylenediamine. 4. Способ по п.1, отличающийся тем, что комбинацию нитрооксидного и фенилдиаминового соединений добавляют в стирол в количестве от 50 частей/миллион до 1000 частей/миллион в расчете на массу стирола. 4. The method according to claim 1, characterized in that the combination of nitrooxide and phenyldiamine compounds are added to styrene in an amount of from 50 parts / million to 1000 parts / million based on the weight of styrene. 5. Способ по п.1, отличающийся тем, что комбинацию нитрооксидного и фенилендиаминового соединений добавляют в стирол в количестве от примерно 100 частей/миллион до примерно 500 частей на миллион в расчете на массу стирола. 5. The method according to claim 1, characterized in that the combination of nitroxide and phenylenediamine compounds are added to styrene in an amount of from about 100 ppm to about 500 ppm based on the weight of styrene. 6. Композиция для ингибирования полимеризации во время анаэробного получения стирола, содержащая эффективное ингибирующее количество комбинации устойчивого соединения с нитрооксидными свободными радикалами и фенилендиаминового соединения. 6. A composition for inhibiting polymerization during anaerobic styrene production, comprising an effective inhibitory amount of a combination of a stable compound with nitroxide free radicals and a phenylenediamine compound. 7. Композиция по п.6, отличающаяся тем, что устойчивое соединение с нитрооксидными свободными радикалами является 4-гидрокси-2,2,6,6-тетраметилпиперидин-1-оксилом. 7. The composition according to claim 6, characterized in that the stable compound with nitroxide free radicals is 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl. 8. Композиция по п.6, отличающаяся тем, что фенилендиаминовое соединение является бис(1,4-диметилпентил)-п-фенилендиамином. 8. The composition according to claim 6, characterized in that the phenylenediamine compound is bis (1,4-dimethylpentyl) -p-phenylenediamine. 9. Композиция по п.6, отличающаяся тем, что комбинация нитрооксидного и фенилендиаминового соединений составляет примерно от 50 частей/миллион до примерно 1000 частей на миллион в расчете на массу стирола. 9. The composition according to claim 6, characterized in that the combination of nitroxide and phenylenediamine compounds is from about 50 parts per million to about 1000 parts per million based on the weight of styrene. 10. Композиция по п.6, отличающаяся тем, что комбинация нитрооксидного и фенилендиаминового соединений составляет примерно от 100 частей/миллион до примерно 500 частей/миллион в расчете на массу стирола. 10. The composition according to claim 6, characterized in that the combination of nitroxide and phenylenediamine compounds is from about 100 ppm to about 500 ppm based on the weight of styrene.
RU99115780/04A 1997-10-17 1998-09-29 Composition and method for inhibiting polymerization during anaerobic styrene production RU2198157C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/953,427 1997-10-17
US08/953,427 US5955643A (en) 1997-10-17 1997-10-17 Composition and method for inhibiting polymerization during the anaerobic of styrene

Publications (2)

Publication Number Publication Date
RU99115780A true RU99115780A (en) 2001-05-20
RU2198157C2 RU2198157C2 (en) 2003-02-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU99115780/04A RU2198157C2 (en) 1997-10-17 1998-09-29 Composition and method for inhibiting polymerization during anaerobic styrene production

Country Status (11)

Country Link
US (1) US5955643A (en)
EP (1) EP0952973B1 (en)
JP (1) JP2001505929A (en)
KR (1) KR100596066B1 (en)
AR (1) AR016410A1 (en)
AU (1) AU9589798A (en)
BR (1) BR9806321A (en)
CA (1) CA2274610C (en)
ES (1) ES2178848T3 (en)
RU (1) RU2198157C2 (en)
WO (1) WO1999020584A1 (en)

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WO2000036052A1 (en) * 1998-12-17 2000-06-22 Nalco/Exxon Energy Chemicals, L.P. Inhibiting polymerization of vinyl aromatic monomers using synergistic mixtures containing nitroxide stabilizers
JP2003507497A (en) * 1999-08-18 2003-02-25 ナルコ／エクソン エナジー ケミカルズ エルピー Method for inhibiting gas phase fouling in vinyl monomer systems
MXPA02005502A (en) * 1999-12-03 2002-09-02 Uniroyal Chem Co Inc Composition and method for inhibiting polymerization and polymer growth.
IT1307306B1 (en) * 1999-12-24 2001-10-30 Chimec Spa PROCEDURE TO PREVENT THE FORMATION OF POLYMER FOULING IN THE TREATMENT OF HYDROCARBON CHARGES CONTAINING OLEFINS.
US6403850B1 (en) * 2000-01-18 2002-06-11 Uniroyal Chemical Company, Inc. Inhibition of polymerization of unsaturated monomers
US6344560B1 (en) 2000-05-03 2002-02-05 Uniroyal Chemical Company, Inc. Nitroaromatic solubilizer for nitroxyls in aromatic solvents
US7045647B2 (en) 2000-10-16 2006-05-16 Uniroyal Chemical Company, Inc. Blends of quinone alkide and nitroxyl compounds and polymerization inhibitors
US6685823B2 (en) 2000-10-16 2004-02-03 Uniroyal Chemical Company, Inc. C-nitrosoaniline compounds and their blends as polymerization inhibitors
US7553896B2 (en) 2005-06-17 2009-06-30 Chemtura Corporation Ortho-nitrosophenols as polymerization inhibitors
US8354216B2 (en) 2008-07-15 2013-01-15 Eastman Kodak Company Negative-working imaging elements and methods of use
US8691994B2 (en) 2011-02-03 2014-04-08 Nalco Company Multi-component polymerization inhibitors for ethylenically unsaturated monomers
US9090526B2 (en) 2011-06-13 2015-07-28 Nalco Company Synergistic combination for inhibiting polymerization of vinyl monomers
CA2857550C (en) * 2011-12-02 2017-02-28 Dorf Ketal Chemicals (India) Private Limited Amine and nitroxide based additive composition for control and inhibition of polymerization of styrene, and method of use thereof
US9399622B2 (en) 2013-12-03 2016-07-26 Ecolab Usa Inc. Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes

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US4466905A (en) * 1983-04-11 1984-08-21 Cosden Technology, Inc. Polymerization inhibition process for vinyl aromatic compounds
US4670131A (en) * 1986-01-13 1987-06-02 Exxon Chemical Patents Inc. Method for controlling fouling of hydrocarbon compositions containing olefinic compounds
US5312952A (en) * 1992-04-23 1994-05-17 Uniroyal Chemical Company, Inc. Polymerization inhibitor for vinyl aromatics
US5254760A (en) * 1992-07-29 1993-10-19 Ciba-Geigy Corporation Inhibiting polymerization of vinyl aromatic monomers
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