| 发明名称 |
Process for the preparation of hydroxy-groups containing compounds from (polyurethane)polyurea waste |
| 摘要 |
<p>The prodn. of OH-contg. cpds. by reacting polyurethane urea and/or polyurea scrap with di-and/or poly-ol at 160-260 degrees C with distillative removal of water in the heating up phase comprises treating reaction mixture with 1,3-dicarbonyl cpd(s) before or during the alcoholysis reaction.</p> |
| 申请公布号 |
EP0688815(B1) |
申请公布日期 |
1999.02.03 |
| 申请号 |
EP19950108891 |
申请日期 |
1995.06.09 |
| 申请人 |
BAYER AG |
发明人 |
MUENZMAY, THOMAS, DR.;RASSHOFEN, WERNER, DR.;MECKEL, WALTER, DR. |
| 分类号 |
C08J11/26;C07B41/02;C08J11/22;(IPC1-7):C08J11/24 |
主分类号 |
C08J11/26 |
| 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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