| 发明名称 |
METHOD FOR THE PREPARATION OF ISOCYANATES BY THERMAL DECOMPOSITION OF URETHANES |
| 摘要 |
A process for the pyrolysis of mono-, di-, and polyurethanes to the corresponding mono-, di-, and polyisocyanates wherein the urethane to be cleaved is heated under pressure and sprayed through a nozzle into a pyrolysis chamber maintained at reduced pressure. The isocyanate and alcohol cleavage products are separated by fractional condensation. |
| 申请公布号 |
EP0143320(A3) |
申请公布日期 |
1985.08.21 |
| 申请号 |
EP19840112671 |
申请日期 |
1984.10.19 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
MATTNER, OTTO;MERGER, FRANZ, DR.;TOWAE, FRIEDRICH, DR. |
| 分类号 |
C07B43/10;C07B31/00;C07C67/00;C07C69/00;C07C241/00;C07C263/04;C07C265/00;C07C265/04;C07C265/12;(IPC1-7):C07C118/00;C07C119/042 |
主分类号 |
C07B43/10 |
| 代理机构 |
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代理人 |
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| 主权项 |
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