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1. 发明授权

US06716888B2 Methods and apparatus for the formation of heterogeneous ion-exchange membranes 失效
标题翻译：用于形成异质离子交换膜的方法和装置
公开(公告)号：US06716888B2
公开(公告)日：2004-04-06
申请号：US10336298
申请日：2003-01-03
申请人： Joseph M. Bernatowicz , Michael J. Snow , Ronald J. O'Hare
发明人： Joseph M. Bernatowicz , Michael J. Snow , Ronald J. O'Hare
IPC分类号： C08J520
CPC分类号： C08J5/2275 , C08J2323/12
摘要： The present invention provides methods and apparatus for the formation of heterogeneous ion-exchange membranes by prescribed in-line compounding and extrusion of a polymeric binder and heat sensitive ion-exchange resin. The ion-exchange resin is incorporated, at a late process stage, into the melted matrix polymer at relatively low temperature and residence time prior to transfer to a die head for extrusion. In the presently preferred embodiment, the in-line compounding apparatus comprises a twin-screw compounding extruder, for effecting late stage kneading and mixing of ion-exchange resin and optional additives to the polymer melt, prior to compression to transfer the blended polymer melt to a die head for extrusion. Accordingly, the final properties of the resultant heterogeneous ion-exchange membrane are enhanced as the blended polymer melt material is not exposed to excessive heat and shear history. Resultant heterogeneous ion-exchange membranes and apparatus for treatment of fluid streams utilizing such membranes are also provided.
摘要翻译：本发明提供了通过规定的在线混合和挤出聚合物粘合剂和热敏离子交换树脂来形成异质离子交换膜的方法和装置。离子交换树脂在后期处理阶段中，在转移到模头以进行挤出之前，在相对较低的温度和停留时间内加入到熔融的基质聚合物中。在目前优选的实施方案中，直列式配混装置包括双螺杆混合挤出机，用于在压缩之前将混合的聚合物熔体转移到聚合物熔体之前进行晚期捏合和将离子交换树脂和任选的添加剂混合到聚合物熔体中用于挤出的模头。因此，由于混合的聚合物熔体材料不暴露于过多的热和剪切历史，所得异相离子交换膜的最终性能得到提高。还提供了所得的异相离子交换膜和用于处理使用这种膜的流体流的装置。

2. 发明授权

US06503957B1 Methods and apparatus for the formation of heterogeneous ion-exchange membranes 失效
标题翻译：用于形成异质离子交换膜的方法和装置
公开(公告)号：US06503957B1
公开(公告)日：2003-01-07
申请号：US09444055
申请日：1999-11-19
申请人： Joseph M. Bernatowicz , Michael J. Snow , Ronald J. O'Hare
发明人： Joseph M. Bernatowicz , Michael J. Snow , Ronald J. O'Hare
IPC分类号： C08J522
CPC分类号： C08J5/2275 , C08J2323/12
摘要： The present invention provides methods and apparatus for the formation of heterogeneous ion-exchange membranes by prescribed in-line compounding and extrusion of a polymeric binder and heat sensitive ion-exchange resin. The ion-exchange resin is incorporated, at a late process stage, into the melted matrix polymer at relatively low temperature and residence time prior to transfer to a die head for extrusion. In the presently preferred embodiment, the in-line compounding apparatus comprises a twin-screw compounding extruder, for effecting late stage kneading and mixing of ion-exchange resin and optional additives to the polymer melt, prior to compression to transfer the blended polymer melt to a die head for extrusion. Accordingly, the final properties of the resultant heterogeneous ion-exchange membrane are enhanced as the blended polymer melt material is not exposed to excessive heat and shear history. Resultant heterogeneous ion-exchange membranes and apparatus for treatment of fluid streams utilizing such membranes are also provided.
摘要翻译：本发明提供了通过规定的在线混合和挤出聚合物粘合剂和热敏离子交换树脂来形成异质离子交换膜的方法和装置。离子交换树脂在后期处理阶段中，在转移到模头以进行挤出之前，在相对较低的温度和停留时间内加入到熔融的基质聚合物中。在目前优选的实施方案中，直列式配混装置包括双螺杆混合挤出机，用于在压缩之前将混合的聚合物熔体转移到聚合物熔体之前进行晚期捏合和将离子交换树脂和任选的添加剂混合到聚合物熔体中用于挤出的模头。因此，由于混合的聚合物熔体材料不暴露于过多的热和剪切历史，所得异相离子交换膜的最终性能得到提高。还提供了所得的异相离子交换膜和用于处理使用这种膜的流体流的装置。

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