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    • 7. 发明授权
    • Process and device for surface pre-treatment of plastic by means of an
electrical corona discharge
    • 通过电晕放电对塑料进行表面预处理的工艺和装置
    • US4929319A
    • 1990-05-29
    • US156572
    • 1988-02-17
    • Peter DinterLothar BotheJohn D. Gribbin
    • Peter DinterLothar BotheJohn D. Gribbin
    • C08J7/00B29C59/10B29C59/12H01T19/00
    • B29C59/12B29C59/103H01T19/00
    • For surface pre-treatment of a plastic article, such as a film sheet or the interior of a plastic molded article, by means of electrical corona-discharge, a device is provided having a generator 5 and a corona discharge device 11. The generator applied a high-frequency, high-voltage alternating current to the discharge electrodes 4 of the corona-discharge device 11. The grounded counterelectrode used is the metal core 2 of a roller 10 over whose peripheral coating 3 a film sheet 1 is transported. A housing 6 encompasses the electrodes 4 of the corona-discharge device 11 and is connected via a line 7 to an atomizer 8 in which a liquid is atomized to form an aerosol by means of a piezoelectrically operating ultrasonic vibration system or by two-component atomizer nozzles which operate at ultrasonic speed. A fan 9, the throughput rate of which can be regulated, is connected to the atomizer 8 and pushes the carrier gas, for example, air, for the aerosol through the atomizer into the corona-discharge device 11. Further corona-discharge devices can be present into which an aerosol of another liquid or only a reactive gas are fed.
    • 对于诸如薄膜片或塑料模制品的内部的塑料制品的表面预处理,通过电晕放电,提供具有发生器5和电晕放电装置11的装置。所述发生器应用 向电晕放电装置11的放电电极4施加的高频,高压交流电。所使用的接地反电极是辊10的金属芯2,其周边涂层3是膜片1。 壳体6包围电晕放电装置11的电极4,并且经由管线7连接到雾化器8,其中液体被雾化以通过压电操作的超声波振动系统或双组分雾化器形成气溶胶 以超声波速度工作的喷嘴。 可以调节其吞吐量的风扇9连接到雾化器8,并通过雾化器将用于气溶胶的载气例如空气推入电晕放电装置11.另外的电晕放电装置可以 存在于其中供给另一种液体或只有反应性气体的气溶胶。
    • 10. 发明授权
    • Apparatus for the production of moldings from thermotropic,
liquid-crystalline substances
    • 用于从热致液晶物质生产模制品的装置
    • US5282731A
    • 1994-02-01
    • US924949
    • 1992-08-05
    • Peter Dinter
    • Peter Dinter
    • B29C47/06B29C47/00B29C47/04B29C47/40B29C47/70B29C47/88B29L7/00B29L9/00B29C47/14B29C47/92
    • B29C47/0004B29C47/0021B29C47/06B29C47/702B29C47/92B29C2947/9259B29C2947/926B29C2947/92961B29C47/062B29C47/28B29K2105/0079
    • In the production of moldings from thermotropic, liquid-crystalline plastics, the chains of the LC polymer molecules are oriented in at least two preferred directions independent of one another. For this purpose, the polymer melt stream which emerges from an extruder is divided into two part streams which are fed via melt lines to an adapter. A distributing element which is caused to rotate by a drive unit is located in the adapter. The adapter is upstream of a slot die and is connected to the latter. One part stream forms a polymer matrix while the other part stream incorporates in, or is superimposed on, this polymer matrix individual polymer strands at different cross-sectional levels by the rotating distributing element. These polymer strands reinforce the polymer matrix. These polymer strands form multiple-pitch helices. The two part streams combined in the adapter enter the slot die and are shaped in the latter to give a multilayer melt film which is extruded through the slot die onto a cooling roller.
    • 在从热致液晶塑料制造模制品中,LC聚合物分子的链在彼此独立的至少两个优选方向上取向。 为此目的,从挤出机中出来的聚合物熔体流被分成两部分流,其通过熔融管线供给到适配器。 通过驱动单元旋转的分配元件位于适配器中。 适配器位于插槽模具的上游,并连接到插槽模具。 一部分流形成聚合物基质,而另一部分流通过旋转分配元件在不同横截面水平上并入或叠加在该聚合物基体单独的聚合物股线上。 这些聚合物链增强聚合物基质。 这些聚合物线形成多间距螺旋。 在适配器中组合的两部分流进入槽模,并在后者中成形,以产生多层熔融薄膜,该薄膜通过狭槽模具挤出到冷却辊上。