发明名称 |
Storage-stable, liquid polyisocyanates possessing carbodiimide groups, and process for their manufacture |
摘要 |
Storage-stable, liquid, only slightly colored polyisocyanates possessing carbodiimide groups and having an isocyanate content of from about 25 to 35% by weight, based on total weight; these products are obtained by condensing polyisocyanates in the presence of phospholines, phospholidines and/or their oxides, and stopping the condensation and stabilizing the condensation products with the Lewis acids, aromatic carboxylic acid halides, aromatic sulfonic acid esters and/or alkyl sulfates.
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申请公布号 |
US4120884(A) |
申请公布日期 |
1978.10.17 |
申请号 |
US19770763647 |
申请日期 |
1977.01.28 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
WOERNER, FRANK PETER;KAN, PETER T.;FALKENSTEIN, GEORG |
分类号 |
C08G18/00;C07C67/00;C07C241/00;C07C267/00;C08G18/02;C08G18/79;(IPC1-7):C07C119/05 |
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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