Title:
有機イソシアネート中の塩素含有成分を減少させるための方法
Document Type and Number:
Japanese Patent JP2008524273
Kind Code:
A
Abstract:
The invention relates to a method for largely eliminating chlorine compounds from organic isocyanates or isocyanate mixtures by contacting said isocyanates or isocyanate mixtures with a water-containing inert gas flow or an organic material having a cation-exchanging effect. The inventive method allows the isocyanates to be gently freed from chorine-containing compounds and is particularly suitable for temperature-sensitive isocyanates.
Inventors:
Andreas Yop
Klaus Yost
Hans-Ulrich Dumersdorf
Klaus Yost
Hans-Ulrich Dumersdorf
Application Number:
JP2007547251A
Publication Date:
July 10, 2008
Filing Date:
December 10, 2005
Export Citation:
Assignee:
LANXESS Deutschland Gamebecher
International Classes:
C07C265/04; C07C263/20; C08G18/70; C09D175/04
Domestic Patent References:
| JP2000290244A | 2000-10-17 | |||
| JPH1045700A | 1998-02-17 | |||
| JP2000327653A | 2000-11-28 | |||
| JPH06345707A | 1994-12-20 | |||
| JPH0316642A | 1991-01-24 | |||
| JPS5686146A | 1981-07-13 | |||
| JPS4191B1 |
Foreign References:
| US4996351A | 1991-02-26 |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro