Invention Grant
- Patent Title: Method for producing 1,4-dicyanocyclohexane, 1,4-bis(aminomethyl)cyclohexane and 1,4-cyclohexanedicarboxylic acid
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Application No.: US16337262Application Date: 2017-09-28
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Publication No.: US10906865B2Publication Date: 2021-02-02
- Inventor: Akifumi Iida , Yuta Ohmori , Emi Nakano , Aoi Yamazoe
- Applicant: Mitsubishi Gas Chemical Company, Inc.
- Applicant Address: JP Chiyoda-ku
- Assignee: Mitsubishi Gas Chemical Company, Inc.
- Current Assignee: Mitsubishi Gas Chemical Company, Inc.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2016-196518 20161004
- International Application: PCT/JP2017/035164 WO 20170928
- International Announcement: WO2018/066447 WO 20180412
- Main IPC: C07C211/18
- IPC: C07C211/18 ; C07C209/46 ; C07C209/48 ; C07C253/22 ; C07C255/46 ; C07C51/36 ; C07C61/09 ; C07B61/00
Abstract:
A method for producing 1,4-dicyanocyclohexane, having a step of obtaining 1,4-dicyanocyclohexane by subjecting a heated concentrate of an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to a cyanation reaction.
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