Invention Grant
- Patent Title: Method for preparing aliphatic diisocyanate
- Patent Title (中): 脂肪族二异氰酸酯的制备方法
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Application No.: US14365427Application Date: 2012-12-04
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Publication No.: US08927763B2Publication Date: 2015-01-06
- Inventor: Hoon Sik Kim , Heehwan Kim , Ji Young Oh , Seunghoon Shin , Seok Soo Kim , Kyung Sik Lim , Jung Dae Choi
- Applicant: University-Industry Cooperation Group of Kyung Hee University
- Applicant Address: KR Yongin-Si
- Assignee: University-Industry Cooperation Group of Kyung Hee University
- Current Assignee: University-Industry Cooperation Group of Kyung Hee University
- Current Assignee Address: KR Yongin-Si
- Agency: Sughrue Mion, PLLC
- Priority: KR10-2011-0134861 20111214
- International Application: PCT/KR2012/010424 WO 20121204
- International Announcement: WO2013/089381 WO 20130620
- Main IPC: C07C263/00
- IPC: C07C263/00 ; C07C265/14 ; C07C263/04
Abstract:
The present invention relates to a method for preparing an aliphatic diisocyanate by pyrolyzing an aliphatic dicarbamate in liquid phase, using a tin (II) or (IV) compound as a catalyst and a zwitterionic compound as a stabilizer, thereby remarkably inhibiting high-boiling by-products and providing the aliphatic diisocyanate with high yield.
Public/Granted literature
- US20140303399A1 METHOD FOR PREPARING ALIPHATIC DIISOCYANATE Public/Granted day:2014-10-09
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