发明名称 |
PROCESS FOR PREPARING LOW-ODOR AND STORAGE-STABLE MONOMER-CONTAINING POLYISOCYANURATES FROM ISOPHORONE DIISOCYANATE |
摘要 |
Process for preparing low-odor and storage-stable monomer-containing polyisocyanurates from isophorone diisocyanate Process for preparing low-odor and storage-stable monomer-containing polyisocyanurates from isophorone diisocyanate by partial trimerization over a period of from 30 seconds to 2 hours in the presence of from 0.01 to 2% by weight, based on the weight of the diisocyanate, of a catalyst of the formula where R and X are butyl groups and Y- is CH3COO-, or R is a benzyl group and Y- is a carboxylate anion having from 4 to 8 carbon atoms and in this case X is an alkylene group having from 2 to 3 carbon atoms, with the three radicals X together with the quaternary nitrogen forming, via a common carbon atom, a tricyclic structure which has at least one OH group in the a or (3 or y position relative to the nitrogen, at a temperature of from 0 to 200.degree.C.
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申请公布号 |
CA2352688(A1) |
申请公布日期 |
2002.01.07 |
申请号 |
CA20012352688 |
申请日期 |
2001.07.05 |
申请人 |
DEGUSSA-HULS AKTIENGESELLSCHAFT |
发明人 |
EWALD, MICHAEL;LOMOLDER, RAINER;KOHLSTRUK, STEPHAN |
分类号 |
C07D251/34;C08G18/02;C08G18/18;C08G18/20;(IPC1-7):C08G18/09 |
主分类号 |
C07D251/34 |
代理机构 |
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地址 |
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