HEAT-SEALING COVER FILM FOR PACKAGING ELECTRONIC COMPONENTS
    2.
    发明申请
    HEAT-SEALING COVER FILM FOR PACKAGING ELECTRONIC COMPONENTS 审中-公开
    用于包装电子元件的热封膜

    公开(公告)号:WO2013029261A1

    公开(公告)日:2013-03-07

    申请号:PCT/CN2011/079229

    申请日:2011-09-01

    Abstract: A cover film for heat-sealing to a carrier tape for carrying electronic components is described herein. The cover film comprises a polyester base layer, a first antistatic layer disposed on a first surface of the base layer, an intermediate bi-layer structure comprising a first intermediate layer and a second intermediate layer, the first intermediate layer disposed on a second surface of the base layer opposite the first antistatic layer, the second intermediate layer disposed on the first intermediate layer opposite the base layer, a second antistatic layer disposed on the second intermediate layer opposite the first intermediate layer, and a heat-sealing layer disposed on the second antistatic layer. In an exemplary aspect, the first intermediate layer comprises polyethylene and the second intermediate layer comprises a poly(vinyl acetate) copolymer and a polystyrene- butadiene) copolymer. In another exemplary aspect, the second antistatic layer comprises carbon nanotubes in a polyacrylate binder.

    Abstract translation: 本文描述了一种用于热封到用于承载电子部件的载带的覆盖膜。 覆盖膜包括聚酯基层,设置在基层的第一表面上的第一抗静电层,包括第一中间层和第二中间层的中间双层结构,第一中间层设置在第二表面的第二表面上 所述基底层与所述第一抗静电层相对,所述第二中间层设置在与所述基底层相对的所述第一中间层上,所述第二抗静电层设置在与所述第一中间层相对的所述第二中间层上,所述热封层设置在所述第二中间层 抗静电层。 在示例性方面,第一中间层包括聚乙烯,第二中间层包含聚(乙酸乙烯酯)共聚物和聚苯乙烯 - 丁二烯共聚物。 在另一示例性方面,第二抗静电层包含聚丙烯酸酯粘合剂中的碳纳米管。

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