发明申请
US20090292098A1 METHOD FOR PRODUCING COLOURLESS POLYISOCYANATES THAT CONTAIN BIURET GROUPS AND ARE STABLE IN STORAGE 审中-公开
生产含有微生物群落且在储存中稳定的无色聚异氰酸酯的方法

METHOD FOR PRODUCING COLOURLESS POLYISOCYANATES THAT CONTAIN BIURET GROUPS AND ARE STABLE IN STORAGE
摘要:
The present invention relates to a process for the preparation of colorless, storage-stable polyisocyanates containing biuret groups from di- or polyisocyanates using water and/or steam as a biuretizing agent, and an apparatus for this purpose and the use thereof.
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