BE830135A - Procede de production d'isocyanates a partir d'esters d'alcoyle inferieur d'acides carbamiques aromatiques monocycliques - Google Patents

Procede de production d'isocyanates a partir d'esters d'alcoyle inferieur d'acides carbamiques aromatiques monocycliques

Info

Publication number
BE830135A
BE830135A BE157250A BE157250A BE830135A BE 830135 A BE830135 A BE 830135A BE 157250 A BE157250 A BE 157250A BE 157250 A BE157250 A BE 157250A BE 830135 A BE830135 A BE 830135A
Authority
BE
Belgium
Prior art keywords
isocyanates
production
lower alcohol
monocyclic aromatic
alcohol esters
Prior art date
Application number
BE157250A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE830135A publication Critical patent/BE830135A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/04—Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE157250A 1974-06-13 1975-06-11 Procede de production d'isocyanates a partir d'esters d'alcoyle inferieur d'acides carbamiques aromatiques monocycliques BE830135A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US479077A US3919278A (en) 1974-06-13 1974-06-13 Production of isocyanates from lower alkyl esters of mononuclear aromatic carbamic acids

Publications (1)

Publication Number Publication Date
BE830135A true BE830135A (fr) 1975-10-01

Family

ID=23902574

Family Applications (1)

Application Number Title Priority Date Filing Date
BE157250A BE830135A (fr) 1974-06-13 1975-06-11 Procede de production d'isocyanates a partir d'esters d'alcoyle inferieur d'acides carbamiques aromatiques monocycliques

Country Status (13)

Country Link
US (1) US3919278A (cg-RX-API-DMAC7.html)
JP (1) JPS5113745A (cg-RX-API-DMAC7.html)
AR (1) AR203241A1 (cg-RX-API-DMAC7.html)
BE (1) BE830135A (cg-RX-API-DMAC7.html)
BR (1) BR7503729A (cg-RX-API-DMAC7.html)
CA (1) CA1049029A (cg-RX-API-DMAC7.html)
DE (1) DE2526193B2 (cg-RX-API-DMAC7.html)
ES (1) ES438494A1 (cg-RX-API-DMAC7.html)
FR (1) FR2274608A1 (cg-RX-API-DMAC7.html)
GB (1) GB1503965A (cg-RX-API-DMAC7.html)
IT (1) IT1038828B (cg-RX-API-DMAC7.html)
NL (1) NL7506999A (cg-RX-API-DMAC7.html)
ZA (1) ZA753548B (cg-RX-API-DMAC7.html)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133868A (en) * 1977-08-16 1979-01-09 Idram Engineering Company Est. Isocyanates process III
JPS5679657A (en) * 1979-12-04 1981-06-30 Mitsui Toatsu Chem Inc Novel preparation of polyisocyanate
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
US4633010A (en) * 1982-12-27 1986-12-30 American Cyanamid Company Tertiary aralkyl triurethane
IT1164223B (it) * 1983-05-13 1987-04-08 Anic Spa Procedimento perfezionato per la produzione di isocianati alchilici
JPS6427716A (en) * 1987-07-21 1989-01-30 Nippon Steel Corp Manufacture of corrosion resistant duplex tube
DE3915181A1 (de) * 1989-05-10 1990-11-15 Bayer Ag Verfahren zur herstellung von polyisocyanaten
DE4137428A1 (de) * 1991-11-14 1993-05-19 Bayer Ag Verfahren zur herstellung von polyisocyanaten
DE4141402A1 (de) * 1991-12-16 1993-06-17 Bayer Ag Verfahren zur herstellung von hochreinen aromatischen di- und/oder polyurethanen
US5233010A (en) * 1992-10-15 1993-08-03 Monsanto Company Process for preparing isocyanate and carbamate ester products
EP0680994A1 (en) * 1994-05-02 1995-11-08 Nippon Paint Co., Ltd. Re-Crosslinkable composition and method for recycling using the same
ES2166922T3 (es) * 1996-03-15 2002-05-01 Bayer Ag Uso de disolventes o mezclas de disolventes de alto punto de ebullicion como medio intercambiador de calor para la disociacion termica de esteres de acidos carbamicos.
CN1186317C (zh) * 2000-02-29 2005-01-26 亨茨曼国际有限公司 制备有机多异氰酸酯的方法
CN102712579B (zh) * 2009-12-01 2014-07-09 巴斯夫欧洲公司 通过热裂解氨基甲酸酯制备异氰酸酯的方法
BR112013002616B1 (pt) * 2010-10-04 2018-11-27 Asahi Kasei Chemicals Corporation métodos para separar, com uma coluna de destilação de múltiplos estágios, uma mistura contendo um composto contendo hidrogênio ativo (a) e um composto (b), e, para produzir um isocianato

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409712A (en) * 1944-02-03 1946-10-22 Du Pont Chemical process and products

Also Published As

Publication number Publication date
GB1503965A (en) 1978-03-15
BR7503729A (pt) 1976-07-06
DE2526193B2 (de) 1978-03-30
AU8167375A (en) 1976-12-02
DE2526193A1 (de) 1975-12-18
JPS5113745A (cg-RX-API-DMAC7.html) 1976-02-03
ES438494A1 (es) 1977-02-01
AR203241A1 (es) 1975-08-22
FR2274608A1 (fr) 1976-01-09
ZA753548B (en) 1976-04-28
IT1038828B (it) 1979-11-30
CA1049029A (en) 1979-02-20
NL7506999A (nl) 1975-12-16
US3919278A (en) 1975-11-11
FR2274608B1 (cg-RX-API-DMAC7.html) 1980-08-08

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