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Title:
気相におけるイソシアネートの調製方法
Document Type and Number:
Japanese Patent JP2012532159
Kind Code:
A
Abstract:
An isocyanate is produced by continuously reacting an amine with phosgene in the presence of an inert substance in the gas phase. In this process, a phosgene-containing stream and a stream containing both the amine and the inert substance are fed into a reactor. The molar ratio of the inert substance to the amino groups in the stream is greater than 0 but less than 45 mol %. This molar ratio changes by no more than 99% during a 20 minute period.

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Inventors:
Reiner Bruns
Wolfgang Lorenz
Knut Sommer
Application Number:
JP2012518791A
Publication Date:
December 13, 2012
Filing Date:
June 26, 2010
Export Citation:
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Assignee:
Bayer MaterialScience AG
International Classes:
C07C263/10; C07C265/10; C07C265/12
Domestic Patent References:
JP2009507059A2009-02-19
JPH0641046A1994-02-15
JP2008174549A2008-07-31
JPH0859593A1996-03-05
Foreign References:
WO2008086922A12008-07-24
WO2009037179A12009-03-26
EP2060560A12009-05-20
WO2009027232A12009-03-05
WO2009023989A12009-02-26
Attorney, Agent or Firm:
Mitsuo Tanaka
Takuji Yamada
Kenichi Morizumi
Kajita Marina



 
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