| 发明名称 |
CATALISADORES,PROCESSO PARA A SUA PREPARACAO E APLICACAO |
| 摘要 |
Novel catalysts are obtainable by the action of alkali metal fluorides on quaternary ammonium salts or phosphonium salts. They are used for the preparation of polyisocyanates containing isocyanurate groups. |
| 申请公布号 |
BR8904062(A) |
申请公布日期 |
1990.04.10 |
| 申请号 |
BR19898904062 |
申请日期 |
1989.08.11 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
HANS JOACHIM SCHOLL;JOSEF PEDAIN |
| 分类号 |
B01J31/26;B01J31/02;C08G18/16;C08G18/18 |
主分类号 |
B01J31/26 |
| 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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