发明名称 |
METHOD OF PRODUCING ORGANIC DIURETHANES AND/OR POLYURETHANES AND THEIR USE IN THE PRODUCTION OF DI-AND/OR POLYISOCYANATES |
摘要 |
Organic diurethanes and/or polyurethanes are prepared by reacting organic diamines and/or polyamines (a) with urea and/or alkyl cabamates (b) and alcohols (c) in the presence of soluble zirconium compounds, preferably zirconium alkoxides, zirconium acetate or zirconium acetylacetonate, as catalyst (d). They can be used for preparing diisocyanates and/or polyisocyanates by thermal dissociation.
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申请公布号 |
US2001005761(A1) |
申请公布日期 |
2001.06.28 |
申请号 |
US19980068361 |
申请日期 |
1998.05.07 |
申请人 |
LAQUA GERHARD;SCHONER ULRICH;OTTERBACH ANDREAS;SCHWARZ HANS VOLKMAR |
发明人 |
LAQUA GERHARD;SCHONER ULRICH;OTTERBACH ANDREAS;SCHWARZ HANS VOLKMAR |
分类号 |
B01J31/04;B01J31/12;B01J31/20;C07B61/00;C07C263/04;C07C265/14;C07C269/04;C07C271/08;C07C271/20;(IPC1-7):C07C269/00;C07C69/74;C07C261/00;C07C271/00;C07C259/00;C07C239/00;C07C381/00;C07C331/00 |
主分类号 |
B01J31/04 |
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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