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公开(公告)号:US10173979B2
公开(公告)日:2019-01-08
申请号:US15832047
申请日:2017-12-05
申请人: Evonik Degussa GmbH
发明人: Alexander Martin Rüfer , Anne Rittsteiger , Jörg-Joachim Nitz , Stephan Kohlstruk , Martina Ortelt , Dirk Fuchsmann , Michael Demming , Christine Stemmer , Denise Ott , Anja Stasch
IPC分类号: C07D211/26 , C08G59/50 , C07D211/34
摘要: The present invention relates to 2-(2,2,6,6-tetramethylpiperidin-4-yl)propane-1,3-diamine, which can be used as hardener in epoxide applications.
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公开(公告)号:US20180093952A1
公开(公告)日:2018-04-05
申请号:US15832047
申请日:2017-12-05
申请人: Evonik Degussa GmbH
发明人: Alexander Martin Rüfer , Anne Rittsteiger , Jörg-Joachim Nitz , Stephan Kohlstruk , Martina Ortelt , Dirk Fuchsmann , Michael Demming , Christine Stemmer , Denise Ott , Anja Stasch
IPC分类号: C07D211/26 , C07D211/34 , C08G59/50
CPC分类号: C07D211/26 , C07D211/34 , C08G59/506
摘要: The present invention relates to a process for producing 2-(2,2,6,6-tetramethylpiperidin-4-yl)propane-1,3-diamine, which can be used as hardener in epoxide applications.
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公开(公告)号:US10252980B1
公开(公告)日:2019-04-09
申请号:US16177863
申请日:2018-11-01
申请人: Evonik Degussa GmbH
发明人: Alexander Martin Rüfer , Anja Poschen , Anne Rittsteiger , Jörg-Joachim Nitz , Stephan Kohlstruk , Martina Ortelt , Dirk Fuchsmann , Michael Demming , Christine Stemmer , Denise Ott
IPC分类号: C07C209/48 , B01J35/00 , B01J21/04 , B01J23/44 , C08G59/50 , C07C211/18 , C07C253/30 , B01J25/02
摘要: A compound of the structural formula 1 as a hardener in epoxy resin composition.
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公开(公告)号:US09868702B2
公开(公告)日:2018-01-16
申请号:US15605268
申请日:2017-05-25
申请人: Evonik Degussa GmbH
发明人: Alexander Martin Rüfer , Anne Rittsteiger , Jörg-Joachim Nitz , Stephan Kohlstruk , Martina Ortelt , Dirk Fuchsmann , Michael Demming , Christine Stemmer , Denise Ott , Anja Stasch
IPC分类号: C07D211/26 , C08G59/50
CPC分类号: C07D211/26 , C07D211/34 , C08G59/506
摘要: A process for producing 2-(2,2,6,6-tetramethylpiperidin-4-yl)propane-1,3-diamine by A) reacting triacetonamine (TAA) and malononitrile to afford the intermediate 2-(2,2,6,6-tetramethylpiperidin-4-ylidene)malononitrile, and B) hydrogenating 2-(2,2,6,6-tetramethylpiperidin-4-ylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar. In another embodiment, the hydrogenation in step B) of the process is performed in two stages at 20-120° C. and at 20-300 bar.
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公开(公告)号:US09862673B2
公开(公告)日:2018-01-09
申请号:US15604873
申请日:2017-05-25
申请人: Evonik Degussa GmbH
发明人: Alexander Martin Rüfer , Anne Rittsteiger , Jörg-Joachim Nitz , Stephan Kohlstruk , Martina Ortelt , Dirk Fuchsmann , Michael Demming , Christine Stemmer , Denise Ott , Anja Stasch
IPC分类号: C07C209/00 , C07C209/48 , C07C211/18 , C07C253/30 , C08G59/50 , B01J23/44 , B01J25/00
CPC分类号: C07C209/48 , B01J23/44 , B01J25/00 , C07C211/18 , C07C253/30 , C07C2601/14 , C08G59/5026
摘要: A diamine 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine of formula 1 and a process for producing 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone (IP) and malononitrile to afford the intermediate 2-(3,5,5-trimethylcyclohex-2-en-1-ylidene)malononitrile, and B) hydrogenating 2-(3,5,5-trimethylcyclohex-2-en-1-ylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.
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公开(公告)号:US20170355661A1
公开(公告)日:2017-12-14
申请号:US15604873
申请日:2017-05-25
申请人: Evonik Degussa GmbH
发明人: Alexander Martin Rüfer , Anne Rittsteiger , Jörg-Joachim Nitz , Stephan Kohlstruk , Martina Ortelt , Dirk Fuchsmann , Michael Demming , Christine Stemmer , Denise Ott , Anja Stasch
IPC分类号: C07C209/48 , B01J25/00 , C07C211/18 , B01J23/44 , C08G59/50 , C07C253/30 , C07C2601/14
CPC分类号: C07C209/48 , B01J23/44 , B01J25/00 , C07C211/18 , C07C253/30 , C07C2601/14 , C08G59/5026
摘要: A diamine 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine of formula 1 and a process for producing 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone (IP) and malononitrile to afford the intermediate 2-(3,5,5-trimethylcyclohex-2-en-1-ylidene)malononitrile, and B) hydrogenating 2-(3,5,5-trimethylcyclohex-2-en-1-ylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.
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公开(公告)号:US10160717B2
公开(公告)日:2018-12-25
申请号:US15604988
申请日:2017-05-25
申请人: Evonik Degussa GmbH
发明人: Alexander Martin Rüfer , Anne Rittsteiger , Jörg-Joachim Nitz , Stephan Kohlstruk , Martina Ortelt , Dirk Fuchsmann , Michael Demming , Christine Stemmer , Denise Ott , Anja Stasch
IPC分类号: C07C209/48 , B01J21/04 , B01J23/44 , B01J25/02 , B01J35/00 , C07C211/18 , C07C253/30 , C08G59/50
摘要: A compound of the structural formula 1A process for producing 2-(3-(aminomethyl)-3,5,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone nitrile and malononitrile to afford the intermediate 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile, and B) hydrogenating 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.
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公开(公告)号:US20170355674A1
公开(公告)日:2017-12-14
申请号:US15605268
申请日:2017-05-25
申请人: Evonik Degussa GmbH
发明人: Alexander Martin Rüfer , Anne Rittsteiger , Jörg-Joachim Nitz , Stephan Kohlstruk , Martina Ortelt , Dirk Fuchsmann , Michael Demming , Christine Stemmer , Denise Ott , Anja Stasch
IPC分类号: C07D211/26 , C08G59/50
CPC分类号: C07D211/26 , C07D211/34 , C08G59/506
摘要: A process for producing 2-(2,2,6,6-tetramethylpiperidin-4-yl)propane-1,3-diamine by A) reacting triacetonamine (TAA) and malononitrile to afford the intermediate 2-(2,2,6,6-tetramethylpiperidin-4-ylidene)malononitrile, and B) hydrogenating 2-(2,2,6,6-tetramethylpiperidin-4-ylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar. In another embodiment, the hydrogenation in step B) of the process is performed in two stages at 20-120° C. and at 20-300 bar.
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9.
公开(公告)号:US20170355662A1
公开(公告)日:2017-12-14
申请号:US15604988
申请日:2017-05-25
申请人: Evonik Degussa GmbH
发明人: Alexander Martin Rüfer , Anne Rittsteiger , Jörg-Joachim Nitz , Stephan Kohlstruk , Martina Ortelt , Dirk Fuchsmann , Michael Demming , Christine Stemmer , Denise Ott , Anja Stasch
IPC分类号: C07C209/48 , B01J21/04 , C08G59/50 , B01J23/44 , B01J25/02 , C07C253/30 , B01J35/00 , C07C211/18 , C07C2601/14
CPC分类号: C07C209/48 , B01J21/04 , B01J23/44 , B01J25/02 , B01J35/0006 , C07C211/18 , C07C253/30 , C07C2601/14 , C08G59/5026 , C07C255/46
摘要: A compound of the structural formula 1 Also disclosed is a process for producing 2-(3-(aminomethyl)-3,5,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone nitrile and malononitrile to afford the intermediate 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile, and B) hydrogenating 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.
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