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专利名称：Production method of polyamide发明人：Kazumi Tanaka,Hideyuki Kurose,Takatoshi
Shida,Minoru Kikuchi
申请号：US10701440申请日：20031106公开号：US07138482B2公开日：20061121
摘要：In the production method of polyamide of the present invention, the molebalance at a set point during melt polymerization is estimated from a pre-establishedequation for calculating the mole balance during melt polymerization from a meltviscosity. On the basis of the estimated mole balance, the subsequent conditions of meltpolymerization of a batch and the polymerization conditions of the next and subsequentbatches are determined. In addition, the mole balance, molecular weight and relativeviscosity of melt-polymerized polyamide are estimated from pre-established equationseach for respectively calculating the mole balance, molecular weight and relative viscosityat the end point of melt polymerization from the melt viscosity. The conditions for solidphase-polymerizing the melt-polymerized polyamide are determined on the basis ofestimated values.
申请人：Kazumi Tanaka,Hideyuki Kurose,Takatoshi Shida,Minoru Kikuchi
地址：Niigata JP,Niigata JP,Niigata JP,Niigata JP
国籍：JP,JP,JP,JP
代理机构：Antonelli, Terry, Stout and Kraus, LLP.
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