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    • 7. 发明专利
    • Process for producing polyamide
    • 生产聚酰胺的方法
    • JP2010007056A
    • 2010-01-14
    • JP2009125297
    • 2009-05-25
    • Mitsubishi Gas Chemical Co Inc三菱瓦斯化学株式会社
    • KUROSE HIDEYUKISHINOHARA KATSUMIKIKUCHI MINORUKANDA TOMOMICHI
    • C08G69/28
    • B01F7/00116B01F7/00166B01F7/00291B01F7/00408B01F7/005B01J19/0066B01J19/18B01J2219/00029B01J2219/00189C08G69/28
    • PROBLEM TO BE SOLVED: To provide a process for batchwise producing polyamide in which the formation of a massive deposit in a stirring apparatus is suppressed to enhance production efficiency, and the resultant product includes less unmelted material due to the deposit, with respect to a process for batchwise producing polyamide through direct melt polymerization of a diamine component comprising paraxylylenediamine and a dicarboxylic acid component in the substantial absence of solvents. SOLUTION: Stirring is conducted under predetermined conditions using a stirring apparatus comprising: (1) a rotating shaft connected to a driving member for stirring; (2) two or more stirring rods disposed in the substantially vertical direction, which are cylinder-shaped members or plate-shaped members moving along the circumference of a circle having the center at the rotating shaft; and (3) a connecting member which connects the rotating shaft and the stirring rods. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种分批生产聚酰胺的方法,其中抑制了在搅拌设备中形成大量沉积物以提高生产效率,并且所得产品由于沉积而包括较少未熔化的材料,相对于 涉及通过在基本上不存在溶剂的情况下通过包含对二甲苯二胺和二羧酸组分的二胺组分的直接熔融聚合来分批生产聚酰胺的方法。 解决方案:使用搅拌装置在预定条件下进行搅拌,该搅拌装置包括:(1)连接到用于搅拌的驱动构件的旋转轴; (2)设置在大致垂直方向上的两个或更多个搅拌棒,它们是沿着旋转轴的中心圆的圆周移动的圆柱形部件或板状部件; 和(3)连接旋转轴和搅拌棒的连接构件。 版权所有(C)2010,JPO&INPIT