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Patent Searching and Data


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)
Application Number:
KR2012/010424
Publication Date:
June 20, 2013
Filing Date:
December 04, 2012
Export Citation:
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Assignee:
UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY (Kyung Hee Univ. Global Campus, 1 Seocheon-dong Giheung-gu,,Yongin-si, Gyeonggi-do 446-701, 446-701, KR)
International Classes:
C07C263/18; B01J23/14; C07C263/04; C07C265/04
Domestic Patent References:
WO2011067242A12011-06-09
Foreign References:
US4386033A1983-05-31
KR100218656B11999-09-01
KR20100139076A2010-12-31
KR20110007184A2011-01-21
Attorney, Agent or Firm:
YU, Su Mi (5th Fl, Eunseong Bldg. 601-18 Yeoksam-dong,,Gangnam-gu, Seoul 135-080, 135-080, KR)
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Claims: