发明名称 |
VERFAHREN ZUR HERSTELLUNG VON POLYISOCYANURATPOLYISOCYANATENDURCH KATALYTISCHE CYCLOTRIMERISIERUNG VON POLYISOCYANATEN. |
摘要 |
<p>Polyisocyanato-polyisocyanurates are prepared by catalytically cyclotrimerizing a polyisocyanate in the presence of a catalytically effective amount of an aminosilyl catalyst, and which is characterizing by terminating the cyclotrimerization reaction when a predetermined desired amount of isocyanurate groups has been obtained, by adding to the reaction mixture a reaction terminating amount of an organic catalyst deactivating compound comprising at least one free hydroxyl moiety, or the reaction product of such hydroxylated organic catalyst deactivating compound with an isocyanate.</p> |
申请公布号 |
AT13762(T) |
申请公布日期 |
1985.06.15 |
申请号 |
AT19830420032T |
申请日期 |
1983.03.02 |
申请人 |
RHONE-POULENC SPECIALITES CHIMIQUES |
发明人 |
ROBIN, JEAN |
分类号 |
C08G18/00;C07D251/34;C08G18/02;C08G18/79;(IPC1-7):C07D251/34 |
主分类号 |
C08G18/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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