METHOD FOR PREPARING ALIPHATIC DIISOCYANATE
20-06-2013 дата публикации
Номер:
WO2013089381A1
Автор: KIM, Hoon Sik, KIM, Heehwan, OH, Ji Young, SHIN, Seunghoon, KIM, Seok Soo, LIM, Kyung Sik, CHOI, Jung Dae
Принадлежит: 경희대학교 산학협력단
Контакты:
Номер заявки: KR04-01-201224
Дата заявки: 04-12-2012
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.[0000]