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US5696291A Cationic polyurethane compositions, quaternary ammonium salts and methods for their preparation 失效
阳离子聚氨酯组合物,季铵盐及其制备方法

Cationic polyurethane compositions, quaternary ammonium salts and
methods for their preparation
摘要:
The preparation and use of quarternized bis hydroxy alkyl amines by the reaction of a tertiary amine and an alkylene oxide in a strong acid system are disclosed. Cationic polyurethane compositions containing pendent hydroxy alkyl groups and methods for their preparation are also disclosed.
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