发明名称 |
PROCEDE DE FABRICATION D'ISOCYANATES ALIPHATIQUES |
摘要 |
Symmetric ureas are converted to aliphatic isocyanates in high yields by reacting said ureas with phosgene at temperatures of at least 150 DEG C. and in a solvent having a boiling temperature greater than 150 DEG C. |
申请公布号 |
BE862306(A1) |
申请公布日期 |
1978.06.23 |
申请号 |
BE19770183834 |
申请日期 |
1977.12.23 |
申请人 |
PHILAGRO S.A. |
发明人 |
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分类号 |
C07C241/00;C07C67/00;C07C263/06;C07C263/10;C07C265/00;C07C265/04 |
主分类号 |
C07C241/00 |
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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