Title:
イソシアネートの製造法
Document Type and Number:
Japanese Patent JP2012509301
Kind Code:
A
Abstract:
The invention relates to an improved multistage process for the continuous preparation of diisocyanates by reaction of the corresponding diamines with carbonic acid derivatives and alcohols to form low molecular weight monomeric urethanes and thermal dissociation of the latter.
Inventors:
Bearn Heart Geisler
Ekhard Strefer
Andreas Schmidt
Matthias Cretzer
Ekhard Strefer
Andreas Schmidt
Matthias Cretzer
Application Number:
JP2011536907A
Publication Date:
April 19, 2012
Filing Date:
August 02, 2010
Export Citation:
Assignee:
BASF SE
International Classes:
C07C263/04; C07C265/14
Domestic Patent References:
| JPH0625136A | 1994-02-01 | |||
| JPH07328435A | 1995-12-19 | |||
| JPH03275662A | 1991-12-06 | |||
| JPH02101057A | 1990-04-12 | |||
| JP2005068147A | 2005-03-17 | |||
| JP2005068146A | 2005-03-17 | |||
| JP2009507886A | 2009-02-26 | |||
| JPH07196594A | 1995-08-01 | |||
| JPS6485956A | 1989-03-30 |
Foreign References:
| WO2007031444A1 | 2007-03-22 |
Attorney, Agent or Firm:
Takuya Kuno
Toshio Yano
Takahashi
Kiyoshi Kuruma
Kimihiro Hoshi
Hiroyasu Ninomiya
Ryoichi Shino
Einzel Felix-Reinhard
Toshio Yano
Takahashi
Kiyoshi Kuruma
Kimihiro Hoshi
Hiroyasu Ninomiya
Ryoichi Shino
Einzel Felix-Reinhard