| 发明名称 |
METHOD FOR PRODUCING LIGHT-COLOURED POLYISOCYANATES |
| 摘要 |
The invention relates to a method for producing light-coloured polyisocyanates by phosgenation of mixtures comprising MDA and polycyclic aromatic polyamines that have o-phenylenediamine units incorporated via methylene bridges. The invention further relates to the polyisocyanate mixtures obtainable by this method. |
| 申请公布号 |
US2014249289(A1) |
申请公布日期 |
2014.09.04 |
| 申请号 |
US201214352865 |
申请日期 |
2012.10.18 |
| 申请人 |
Bayer Intellectual Property GmbH |
发明人 |
Mueller Thomas Ernst;Guertler Christoph;Scherer-Werke Axel;Werschofen Stefan;Vogt Henning;Leitner Walter |
| 分类号 |
C08G18/76 |
主分类号 |
C08G18/76 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
Monheim DE |
