发明公开
EP0179227A2 Modified polyhydroxy compounds, methods of manufacturing them, their use and polyurethane systems comprising said compounds 失效
改性的多羟基化合物,它们的制备方法,它们的用途和聚氨酯体系,其含有这些化合物。

Modified polyhydroxy compounds, methods of manufacturing them, their use and polyurethane systems comprising said compounds
摘要:
Modified polyhydroxy compounds, which are obtainable by heating a polyhydroxy compound for 30 minutes or mo at a temperature ranging from 150°C to 250°C under stirring and in the presence of tin, tin compounds such as tin helogenide, tin hydroxide and tin oxide. Also provided are a method of manufacturing such modified polyhydroxy compounds as well as the use of the modified polyhydroxy' compounds and polyurethane systems comprising the mod- ified polyhydroxy compounds. The polyhydroxy compounds according to the invention are effective in improving the foamability and mechanical strength of urethane foam, when used as raw materials in the manufacture of urethane foam.
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