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    • 8. 发明授权
    • Production method of polyamide
    • 聚酰胺的生产方法
    • US07138482B2
    • 2006-11-21
    • US10701440
    • 2003-11-06
    • Kazumi TanakaHideyuki KuroseTakatoshi ShidaMinoru Kikuchi
    • Kazumi TanakaHideyuki KuroseTakatoshi ShidaMinoru Kikuchi
    • C08G69/04C08G69/28C08G69/26
    • C08G69/28C08G69/04
    • In the production method of polyamide of the present invention, the mole balance at a set point during melt polymerization is estimated from a pre-established equation for calculating the mole balance during melt polymerization from a melt viscosity. On the basis of the estimated mole balance, the subsequent conditions of melt polymerization of a batch and the polymerization conditions of the next and subsequent batches are determined. In addition, the mole balance, molecular weight and relative viscosity of melt-polymerized polyamide are estimated from pre-established equations each for respectively calculating the mole balance, molecular weight and relative viscosity at the end point of melt polymerization from the melt viscosity. The conditions for solid phase-polymerizing the melt-polymerized polyamide are determined on the basis of estimated values.
    • 在本发明的聚酰胺的制造方法中,从熔融粘度计算熔融聚合时的摩尔平衡的预先设定的方程,估算熔融聚合时的设定点的摩尔平衡。 基于估计的摩尔平衡,确定批次的熔融聚合的后续条件和下一批和后续批次的聚合条件。 此外,熔融聚合聚酰胺的摩尔平衡,分子量和相对粘度由预先建立的方程估算,各自分别用于分别从熔体粘度计算熔融聚合终点处的摩尔平衡,分子量和相对粘度。 基于估计值确定熔融聚合的聚酰胺的固相聚合条件。