| 发明名称 |
Process for reacting isocyanates in the presence of quaternary ammonium zwitterions |
| 摘要 |
The reaction of an isocyanate such as toluene diisocyanate with itself to form an isocyanurate or with an active hydrogen compound such as diethylene glycol to form a urethane is catalyzed by the presence of an ar-ammonium areneoxide such as 4-dodecyl-2-trimethylammonium phenoxide.
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| 申请公布号 |
US4335219(A) |
申请公布日期 |
1982.06.15 |
| 申请号 |
US19810251628 |
申请日期 |
1981.04.06 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
CLARKE, DONALD H.;POMRANKY, GEORGE J.;SCHMIDT, DONALD L. |
| 分类号 |
C08G18/02;C08G18/18;(IPC1-7):C08G18/18 |
主分类号 |
C08G18/02 |
| 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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