发明名称 WERKWIJZE VOOR HET LATEN REAGEREN VAN ISOCYANATEN BIJ AANWEZIGHEID VAN INITIERINGSMIDDELEN EN GEVORMDE VOORTBRENGSELEN VERVAARDIGD UIT EEN ALDUS VERKREGEN PRODUKT.
摘要 <p>The reaction of isocyanates with substances containing isocyanate groups or active hydrogen groups, such as hydroxyl groups, amino groups and the like, are initiated by sulfonium zwitterions such as the ar-cyclic sulfonium areneoxides. Accordingly, partially trimerized isocyanates, polyurethanes and other useful materials can be made.</p>
申请公布号 NL186251(C) 申请公布日期 1990.10.16
申请号 NL19770006477 申请日期 1977.06.13
申请人 THE DOW CHEMICAL COMPANY TE MIDLAND, MICHIGAN, VER. ST. V. AM. 发明人
分类号 C07D251/34;B01J31/00;C07B61/00;C07C67/00;C07C239/00;C07C241/00;C07C267/00;C07C269/02;C08G18/00;C08G18/02;C08G18/16;(IPC1-7):C08G18/16;C08G18/79 主分类号 C07D251/34
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