JPS5439002A - Preparation of isocyanates - Google Patents

Preparation of isocyanates

Info

Publication number
JPS5439002A
JPS5439002A JP10401577A JP10401577A JPS5439002A JP S5439002 A JPS5439002 A JP S5439002A JP 10401577 A JP10401577 A JP 10401577A JP 10401577 A JP10401577 A JP 10401577A JP S5439002 A JPS5439002 A JP S5439002A
Authority
JP
Japan
Prior art keywords
isocyanates
preparation
pyrolysis
compound
acid esters
Prior art date
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.)
Granted
Application number
JP10401577A
Other languages
Japanese (ja)
Other versions
JPS6113463B2 (en
Inventor
Takeshi Onoda
Kazuo Tano
Haruo Habu
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP10401577A priority Critical patent/JPS5439002A/en
Publication of JPS5439002A publication Critical patent/JPS5439002A/en
Publication of JPS6113463B2 publication Critical patent/JPS6113463B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain isocyanates in high yield with great reduction of by-producing high-boiling substance, by the pyrolysis of carbamic acid esters in an inert solvent in the presence of a compound having active hydrogen.
COPYRIGHT: (C)1979,JPO&Japio
JP10401577A 1977-08-30 1977-08-30 Preparation of isocyanates Granted JPS5439002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10401577A JPS5439002A (en) 1977-08-30 1977-08-30 Preparation of isocyanates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10401577A JPS5439002A (en) 1977-08-30 1977-08-30 Preparation of isocyanates

Publications (2)

Publication Number Publication Date
JPS5439002A true JPS5439002A (en) 1979-03-24
JPS6113463B2 JPS6113463B2 (en) 1986-04-14

Family

ID=14369427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10401577A Granted JPS5439002A (en) 1977-08-30 1977-08-30 Preparation of isocyanates

Country Status (1)

Country Link
JP (1) JPS5439002A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692550A (en) * 1982-04-27 1987-09-08 Bayer Aktiengesellschaft Continuous process for thermal splitting of carbamic acid esters
EP0672653A1 (en) * 1994-03-18 1995-09-20 Mitsubishi Gas Chemical Company, Inc. Process for producing isocyanates
US8895774B2 (en) 2008-05-15 2014-11-25 Asahi Kasei Chemicals Corporation Process for producing isocyanates using diaryl carbonate
US9233918B2 (en) 2008-05-15 2016-01-12 Asahi Kasei Chemicals Corporation Isocyanate production process
JP2019199426A (en) * 2018-05-15 2019-11-21 旭化成株式会社 Method for producing isocyanate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692550A (en) * 1982-04-27 1987-09-08 Bayer Aktiengesellschaft Continuous process for thermal splitting of carbamic acid esters
EP0672653A1 (en) * 1994-03-18 1995-09-20 Mitsubishi Gas Chemical Company, Inc. Process for producing isocyanates
US8895774B2 (en) 2008-05-15 2014-11-25 Asahi Kasei Chemicals Corporation Process for producing isocyanates using diaryl carbonate
US9233918B2 (en) 2008-05-15 2016-01-12 Asahi Kasei Chemicals Corporation Isocyanate production process
JP2019199426A (en) * 2018-05-15 2019-11-21 旭化成株式会社 Method for producing isocyanate

Also Published As

Publication number Publication date
JPS6113463B2 (en) 1986-04-14

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