Title:
METHOD FOR LOWERING THE CHLORINE CONTENT IN LOW-MOLECULAR ISOCYANATES
Document Type and Number:
WIPO Patent Application WO2002012176
Kind Code:
A3
Abstract:
The invention relates to a novel method for removing chlorine compounds from organic isocyanates or isocyanate mixtures by carrying out a treatment and an extraction using near-critical and/or supercritical fluids.
Inventors:
BRAHM MARTIN (DE)
DANIELMEIER KARSTEN (US)
DOHRN RALF (DE)
DENNINGER UWE (DE)
BRUNNER GERD (DE)
BEZOLD ANDREAS (DE)
DANIELMEIER KARSTEN (US)
DOHRN RALF (DE)
DENNINGER UWE (DE)
BRUNNER GERD (DE)
BEZOLD ANDREAS (DE)
Application Number:
PCT/EP2001/008469
Publication Date:
April 11, 2002
Filing Date:
July 23, 2001
Export Citation:
Assignee:
BAYER AG (DE)
BRAHM MARTIN (DE)
DANIELMEIER KARSTEN (US)
DOHRN RALF (DE)
DENNINGER UWE (DE)
BRUNNER GERD (DE)
BEZOLD ANDREAS (DE)
BRAHM MARTIN (DE)
DANIELMEIER KARSTEN (US)
DOHRN RALF (DE)
DENNINGER UWE (DE)
BRUNNER GERD (DE)
BEZOLD ANDREAS (DE)
International Classes:
C07C263/20; C07C265/04; (IPC1-7): C07C263/20
Foreign References:
| US4918220A | 1990-04-17 | |||
| US5185384A | 1993-02-09 |
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