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US5001210A Method for producing polyurethanes from poly-(hydroxyalkyl urethanes) 失效
聚(羟基烷基氨基甲酸酯)生产聚氨酯的方法

Method for producing polyurethanes from poly-(hydroxyalkyl urethanes)
摘要:
By reacting polyamines with cyclic carbonates, di-poly-(hydroxyalkyl urethanes) are produced. These diols and polyols are particularly useful for the synthesis of polyurethanes by reaction with diisocyanates or polyisocyanates.
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