发明授权
US4749776A Process for the manufacture of polyamide from dinitrile and diamine in contact with an ester of an oxygenated phosphorus compound catalyst and a strong base 失效
由二腈和二胺与含氧磷化合物催化剂和强碱的酯接触制备聚酰胺的方法

Process for the manufacture of polyamide from dinitrile and diamine in
contact with an ester of an oxygenated phosphorus compound catalyst and
a strong base
摘要:
The process for manufacturing a nylon-type polyamide from a dinitrile, a diamine and water in the presence of a catalyst is improved by using as a catalyst an ester of oxygenated phosphorus compound in conjunction with a strong base. For example, high quality nylon-6,6 is manufactured by contacting adiponitrile, hexamethylene diamine and water with an ester of an oxygenated phosphorous compound and sodium hydroxide at an elevated temperature and pressure.
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