Title:
METHOD FOR PREPARING ALIPHATIC DIISOCYANATE
Document Type and Number:
WIPO Patent Application WO/2013/089381
Kind Code:
A1
Abstract:
The present invention provides a method for preparing aliphatic diisocyanate at high yield while significantly preventing the production of by-products having high boiling points by pyrolyzing aliphatic dicarbamate in a liquid phase using a tin (II) compound or tin (IV) compound as a catalyst and using an amphoteric ion compound as a stabilizer.
Inventors:
KIM HOON SIK (KR)
KIM HEEHWAN (KR)
OH JI YOUNG (KR)
SHIN SEUNGHOON (KR)
KIM SEOK SOO (KR)
LIM KYUNG SIK (KR)
CHOI JUNG DAE (KR)
KIM HEEHWAN (KR)
OH JI YOUNG (KR)
SHIN SEUNGHOON (KR)
KIM SEOK SOO (KR)
LIM KYUNG SIK (KR)
CHOI JUNG DAE (KR)
Application Number:
PCT/KR2012/010424
Publication Date:
June 20, 2013
Filing Date:
December 04, 2012
Export Citation:
Assignee:
UNIV KYUNG HEE UNIV IND COOP GROUP (KR)
International Classes:
C07C263/18; B01J23/14; C07C263/04; C07C265/04
Domestic Patent References:
| WO2011067242A1 | 2011-06-09 |
Foreign References:
| US4386033A | 1983-05-31 | |||
| KR100218656B1 | 1999-09-01 | |||
| KR20100139076A | 2010-12-31 | |||
| KR20110007184A | 2011-01-21 |
Attorney, Agent or Firm:
YU, Su Mi (KR)
유수미 (KR)
유수미 (KR)
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Claims: