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    • 14. 发明公开
    • HERSTELLUNG VON POLYAMIDEN DURCH HYDROLYTISCHE POLYMERISATION UND NACHFOLGENDE BEHANDLUNG IN EINEM KNETER
    • 通过在捏合机水解聚合和随后的处理的聚酰胺的合成
    • EP3143069A1
    • 2017-03-22
    • EP15723899.9
    • 2015-05-13
    • BASF SE
    • ZHU, NingHÄFFNER, RüdigerSTAMMER, AchimORTIZ, CesarBIEDASEK, SilkeEL-TOUFAILI, Faissal-Ali
    • C08G69/16C08G69/06
    • C08G69/16C08G69/06C08G69/14C08G69/46
    • What is proposed is a process for producing polyamides having the following steps: a) providing a monomer composition comprising at least one lactam or at least one aminocarbonitrile and/or oligomers of these monomers, b) reacting the monomer composition provided in step a) in a hydrolytic polymerization at elevated temperature in the presence of water to obtain a reaction product comprising polyamide, water, unconverted monomers and oligomers, and c) postpolymerizing the reaction product obtained in step b) in at least one kneader (3), the kneader (3) used in step c) having at least two screws, with at least one reaction zone and one discharge zone arranged in the direction of the longitudinal axes of the screws, and with kneading elements arranged in succession on each of the screws in the at least one reaction zone, wherein a free space zone having a free space volume in the range from 10% to 70%, based on the total volume of the at least one reaction zone, is provided in the kneader (3) above the at least two screws.
    • 什么建议是用于制造具有以下步骤聚酰胺的方法:a)提供单体组合物,包括至少一种内酰胺或至少一种aminocarbonitrile和/或起反应的单体组合物合成单体b的低聚物)在步骤提供的) 在升高的温度在水的存在下水解聚合在至少一个捏合机得到反应产物包含聚酰胺,水,未转化的单体和低聚物,和c)postpolymerizing在步骤b中获得的反应产物)捏合机(3)中,( 3)在步骤c)中使用具有至少两个螺钉,具有至少一个反应区和在螺钉的纵向轴线的方向上布置成一个放电区,并在连续布置在每个在螺钉捏合元件 至少一个反应区,worin具有范围内的自由空间体积的10%至70%,基于所述至少一个反应区的总体积上的自由空间区,在kneade提供 R(3)上方的至少两个螺钉。