Invention Grant
- Patent Title: Preparation of primary diamines having a linear main chain for polyamide syntheses
- Patent Title (中): 制备具有聚酰胺合成线性主链的伯二胺
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Application No.: US13364493Application Date: 2012-02-02
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Publication No.: US08642811B2Publication Date: 2014-02-04
- Inventor: Franz-Erich Baumann , Matthias Ullrich , Martin Roos , Peter Hannen , Frank-Martin Petrat , Harald Haeger , Angela Koeckritz , Guido Walther , Jens Deutsch , Andreas Martin
- Applicant: Franz-Erich Baumann , Matthias Ullrich , Martin Roos , Peter Hannen , Frank-Martin Petrat , Harald Haeger , Angela Koeckritz , Guido Walther , Jens Deutsch , Andreas Martin
- Applicant Address: DE Essen
- Assignee: Evonik Degussa GmbH
- Current Assignee: Evonik Degussa GmbH
- Current Assignee Address: DE Essen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: DE102011003595 20110203
- Main IPC: C07C209/16
- IPC: C07C209/16
Abstract:
The invention provides a method to produce primary diamines by catalytic conversion of diols having a linear main chain of from 4 to 31 carbon atoms into the corresponding diamines. The reaction is conducted in a liquid or supercritical phase and is catalyzed by a homogeneous ruthenium-containing complex. The primary diamines obtained may be suitable for polyamide syntheses.
Public/Granted literature
- US20120203033A1 PREPARATION OF PRIMARY DIAMINES HAVING A LINEAR MAIN CHAIN FOR POLYAMIDE SYNTHESES Public/Granted day:2012-08-09
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