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1. 发明授权

US4784899A Electroconductive nonwoven fabric-resin composite articles and method for production thereof 失效
标题翻译：导电无纺布 - 树脂复合制品及其制造方法
公开(公告)号：US4784899A
公开(公告)日：1988-11-15
申请号：US27183
申请日：1987-03-16
申请人： Nobuhiro Ono , Hiroyuki Kitamura , Masanori Nishiura
发明人： Nobuhiro Ono , Hiroyuki Kitamura , Masanori Nishiura
IPC分类号： B32B5/28 , B29C43/20 , B29C43/56 , B29C70/08 , B29C70/46 , B29C70/88 , B29L31/34 , H01B5/14 , H01B13/00 , H01Q15/14 , H05K9/00 , B32B7/00
CPC分类号： H05K9/009 , B29C43/56 , B29C70/08 , B29C70/46 , B29C70/882 , H01Q15/141 , B29C2791/006 , B29K2105/0809 , B29K2105/0854 , B29K2995/0005 , B29L2031/3456 , Y10T442/3813
摘要： There are provided an FRP molded article and a method for production thereof, which has the properties of uniformly reflecting and shielding electromagnetic waves. The molded article comprises a compression-molded laminated structure composed essentially of an electroconductive nonwoven fabric-resin composite surface layer (3), a woven fabric-resin composite intermediate layer (2) and a fiber material reinforced resin substrate layer (1), wherein the nonwoven fabric composite layer substantially contains no bubbles. The molded article can be produced by placing, on a mold, an electroconductive nonwoven fabric substantially containing no liquid resin material, a woven fabric or a prepreg thereof, and a mixture of a reinforcing fiber material and a liquid crosslink-curable resin composition; subjecting the molding materials to depressurization treatment in the mold; and then subjecting the molding materials to compression molding. The molded articles can be advantageously used, for example, as reflecting dish antennas as well as shielding sheets or boards for electromagnetic waves. In the preferred embodiment, the molded article contains about 90% or less of the cured resin component by weight of the resin component of the corresponding conventional molded article, whereby deformation due to molding strain is decreased.
摘要翻译：提供了具有均匀地反射和屏蔽电磁波的性质的FRP成型体及其制造方法。成形品包括基本上由导电性无纺布 - 树脂复合表面层（3），机织织物 - 树脂复合材料中间层（2）和纤维材料增强树脂基材层（1）组成的压缩成型叠层结构，其中无纺布复合层基本上不含气泡。可以通过在模具上放置基本上不含液态树脂材料的导电性无纺布，机织织物或预浸料，以及增强纤维材料和液态交联固化性树脂组合物的混合物来制造成型品。使成型材料在模具中进行减压处理; 然后对成型材料进行压塑。模制品可以有利地用于例如反射盘天线以及用于电磁波的屏蔽片或板。在优选实施方案中，模制品含有相应常规模塑制品的树脂组分的固化树脂组分的约90％或更少，由此模塑应变引起的变形减小。

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