发明名称 |
Blocked isocyanate diols and preparation thereof |
摘要 |
Copolymerizable blocked isocyanate diols are prepared by reacting a blocking agent with an isocyanate group of an organic diisocyanate under controlled conditions, thereby forming a blocked isocyanate group, and reacting the second isocyanate group in a subsequent step with the amine portion of a selected amine diol under anhydrous conditions. The resultant products are used to prepare self-crosslinkable, linear polyurethanes of high molecular weight.
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申请公布号 |
US4284572(A) |
申请公布日期 |
1981.08.18 |
申请号 |
US19780969771 |
申请日期 |
1978.12.15 |
申请人 |
NATIONAL STARCH AND CHEMICAL CORPORATION |
发明人 |
STANLEY, HENRY;RAY-CHAUDHURI, DILIP K. |
分类号 |
C07C275/28;C08G18/32;C08G18/80;(IPC1-7):C07D307/16;C07C127/19;C07C69/78 |
主分类号 |
C07C275/28 |
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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