FR2017496A1 - - Google Patents

Info

Publication number
FR2017496A1
FR2017496A1 FR6930076A FR6930076A FR2017496A1 FR 2017496 A1 FR2017496 A1 FR 2017496A1 FR 6930076 A FR6930076 A FR 6930076A FR 6930076 A FR6930076 A FR 6930076A FR 2017496 A1 FR2017496 A1 FR 2017496A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6930076A
Other languages
French (fr)
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of FR2017496A1 publication Critical patent/FR2017496A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00Preparation of derivatives of isocyanic acid
    • C07C263/04Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/14Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
    • C07C319/20Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
FR6930076A 1968-09-06 1969-09-03 Withdrawn FR2017496A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75813868A 1968-09-06 1968-09-06

Publications (1)

Publication Number Publication Date
FR2017496A1 true FR2017496A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-05-22

Family

ID=25050654

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6930076A Withdrawn FR2017496A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-09-06 1969-09-03

Country Status (5)

Country Link
US (1) US3734941A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1944719B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2017496A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1247451A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL162632C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320288A1 (fr) * 1975-08-07 1977-03-04 Mitsui Toatsu Chemicals Procede pour la preparation d'isocyanates aromatiques

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870739A (en) * 1973-03-05 1975-03-11 Air Prod & Chem Isocyanates from urethanes
US3919279A (en) * 1974-06-26 1975-11-11 Atlantic Richfield Co Catalytic production of isocyanates from esters of carbamic acids
DE2512514C2 (de) * 1975-03-21 1982-12-30 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von aliphatischen Isocyanaten
US3992430A (en) * 1975-09-11 1976-11-16 Chevron Research Company Process for preparing aromatic isocyanates
DE2729990A1 (de) * 1977-07-02 1979-01-18 Bayer Ag Verfahren zur herstellung von isocyanatgruppen aufweisenden allophanaten
US4255453A (en) * 1977-08-16 1981-03-10 Jordan Robert K Production of isocyanic acid and isocyanates
US4123450A (en) * 1977-09-22 1978-10-31 Fmc Corporation Process for preparing alkyl isocyanates
DE2756928A1 (de) * 1977-12-21 1979-07-05 Bayer Ag Verfahren zur kontinuierlichen herstellung von monoisocyanaten
DE2917569A1 (de) * 1979-04-30 1980-11-13 Basf Ag Verfahren zur herstellung von aromatischen di- und polyurethanen
US4851565A (en) * 1979-04-30 1989-07-25 Basf Aktiengesellschaft Catalyzed process for the preparation of an aliphatic, cycloaliphatic, arylaliphatic or aliphatic-cycloaliphatic di- or polyurethane
DE2917493A1 (de) * 1979-04-30 1980-11-13 Basf Ag Verfahren zur herstellung von aliphatischen und cycloaliphatischen di- und polyurethanen
US4288382A (en) * 1979-10-10 1981-09-08 Vertac, Inc. Reversible adducts of isocyanates with boron compounds
JPS5679657A (en) 1979-12-04 1981-06-30 Mitsui Toatsu Chem Inc Novel preparation of polyisocyanate
DE3021299A1 (de) * 1980-06-06 1982-01-07 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von isocyanaten
DE3035146A1 (de) * 1980-09-18 1982-04-22 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von n- und o-substituierten mono- oder bis-urethanen, sowie deren verwendung als ausgangsmaterial zur herstellung von aliphatischen isocyanaten
DE3035354A1 (de) * 1980-09-19 1982-04-29 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von n,o-disubstituierten urethanen und ihre verwendung als ausgangsmaterial zur herstellung von organischen isocyanaten
DE3047898A1 (de) * 1980-12-19 1982-07-15 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern und die verwendung von hierbei anfallenden isocyanate und carbamidsaeureester aufweisenden gemischen zur herstellung von isocyanaten
DE3108990A1 (de) * 1981-03-10 1982-09-23 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von polyisocyanaten
US4487713A (en) * 1981-06-26 1984-12-11 Exxon Research & Engineering Co. Production of isocyanates from esters of aromatic carbamic acids (urethanes)
DE3215591A1 (de) * 1982-04-27 1983-10-27 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern
DE3362121D1 (en) * 1982-07-24 1986-03-27 Basf Ag Process for the preparation of hexamethylene diisocyanate-1,6 and/or of the isomeric diisocyanates with 6 carbon atoms in the alkyl group
US4587056A (en) * 1984-04-26 1986-05-06 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing an aliphatic isocyanate
DE4124671A1 (de) * 1991-07-25 1993-01-28 Basf Ag Reaktor und verfahren zur thermischen spaltung von carbamidsaeureestern
EP0795543B1 (de) * 1996-03-15 2001-10-31 Bayer Ag Verwendung von hochsiedenden Lösemitteln bzw. -gemischen als Wärmetauschmedium für die thermische Spaltung von Carbamidsäureestern
GB0017968D0 (en) * 2000-07-22 2000-09-13 Epichem Ltd An improved process and apparatus for the isolation of pure,or substantially pure,organometallic compounds
DE10209095A1 (de) * 2002-03-01 2003-09-11 Basf Ag Verfahren zur Herstellung von Isocyanaten
JP4859255B2 (ja) * 2006-11-17 2012-01-25 旭化成ケミカルズ株式会社 イソシアネートの製造方法
TW200844080A (en) 2007-01-11 2008-11-16 Asahi Kasei Chemicals Corp Process for producing isocyanate
ES2619508T3 (es) * 2007-03-30 2017-06-26 Asahi Kasei Kabushiki Kaisha Procedimiento para producir un isocianato utilizando una composición que comprende un éster de ácido carbámico y un compuesto hidroxiaromático, y composición para el transporte o el almacenamiento de ésteres de ácido carbámico
CN103467730B (zh) 2007-11-19 2015-12-23 旭化成化学株式会社 氨基甲酸酯化合物
BRPI0822695B1 (pt) * 2008-05-15 2017-05-02 Asahi Kasei Chemicals Corp processo para produzir um isocianato
ES2710177T3 (es) * 2008-05-15 2019-04-23 Asahi Chemical Ind Proceso para la producción de isocianato
CN103553972B (zh) 2009-08-21 2017-04-12 旭化成株式会社 N‑取代氨基甲酸酯的制造方法、使用该n‑取代氨基甲酸酯制造异氰酸酯的方法
CN101857556A (zh) * 2010-05-18 2010-10-13 中国科学院过程工程研究所 一种气相热解制备异氰酸酯的系统及其方法
CN102947267A (zh) * 2010-06-22 2013-02-27 巴斯夫欧洲公司 在固体路易斯酸上非均相催化氨基甲酸酯离解以合成异氰酸酯
WO2012115110A1 (ja) 2011-02-21 2012-08-30 旭化成ケミカルズ株式会社 カルボニル化合物の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320288A1 (fr) * 1975-08-07 1977-03-04 Mitsui Toatsu Chemicals Procede pour la preparation d'isocyanates aromatiques

Also Published As

Publication number Publication date
DE1944719A1 (de) 1970-03-12
US3734941A (en) 1973-05-22
NL6913239A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-03-10
NL162632C (nl) 1980-06-16
DE1944719B2 (de) 1979-08-30
NL162632B (nl) 1980-01-15
GB1247451A (en) 1971-09-22

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