Use of carbonic-acid/carbamic-acid anhydrides as CO2-cleaving blowing agents in the production of cellular or foam-like plastics.

申请公布号：EP0051211(A1)

申请号：EP19810108678

申请日期：1981.10.22

申请公布日期：1982.05.12

申请人：

BAYER AG

发明人：KOPP, RICHARD, DR.;GROGLER, GERHARD, DR.;MANN, MAX, DR.

分类号：C08J9/08;(IPC1-7):C08G18/30;C08G18/14;C07C125/00

主分类号：C08J9/08

摘要：Verwendung von Treibmitteln zur Herstellung zelliger oder geschäumter Kunststoffprodukte, dadurch gekennzeichnet, daß man 0,05 bis 20 Gew.-% an gemischten Carbonsäure/Carbaminsäure-Anhydriden mit einem Schmelzpunkt von mindestens 40°C aus an aliphatische oder cycoaliphatische Reste gebundenen Mono- und/oder Polyisocyanaten und schwachen Organischen Mono- und/oder Polycarbonsäuren mit PK5-Wert von 4 bis 7 als Treibmittel einsetzt und bei Temperaturen oberhalb von 100°C die Treibreaktion durchführt.

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