Invention Grant
US08742164B2 Method for producing toluenedicarbamate, method for producing toluenediisocyanate, and toluenedicarbamate
有权
甲苯二氨基甲酸酯的制造方法，甲苯二异氰酸酯的制造方法以及甲苯二氨基甲酸酯
- Patent Title: Method for producing toluenedicarbamate, method for producing toluenediisocyanate, and toluenedicarbamate
- Patent Title (中): 甲苯二氨基甲酸酯的制造方法，甲苯二异氰酸酯的制造方法以及甲苯二氨基甲酸酯
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Application No.: US13807979Application Date: 2011-05-19
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Publication No.: US08742164B2Publication Date: 2014-06-03
- Inventor: Koichi Murayama , Yoshiki Shimokawatoko , Takashi Kanno , Koji Takamatsu , Hiroshi Takeuchi , Masaaki Sasaki , Yasushi Kotaki
- Applicant: Koichi Murayama , Yoshiki Shimokawatoko , Takashi Kanno , Koji Takamatsu , Hiroshi Takeuchi , Masaaki Sasaki , Yasushi Kotaki
- Applicant Address: JP Tokyo
- Assignee: Mitsui Chemicals, Inc.
- Current Assignee: Mitsui Chemicals, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2010-154825 20100707
- International Application: PCT/JP2011/061516 WO 20110519
- International Announcement: WO2012/005059 WO 20120112
- Main IPC: C07C261/00
- IPC: C07C261/00
Abstract:
A method for producing toluenedicarbamate includes a carbamate production process of producing toluenedicarbamate by reaction between toluenediamine, urea, and/or N-unsubstituted carbamic acid ester, and alcohol; and a benzoyleneurea reduction process of reducing a disubstituted benzoyleneurea and a derivative thereof to 10 mol or less relative to 100 mol of toluenedicarbamate, wherein the disubstituted benzoyleneurea is represented by formula (1) below and has a methyl group and an amino group:
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