高效能可密封式共挤压定向膜及其制造方法与含有该定向膜之物件;HIGH PERFORMANCE SEALABLE CO-EXTRUDED ORIENTED FILM, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME

摘要

本发明于此揭示出一种多层膜，其包含一第一层及一第二层；及一连结层(tie layer)，其中该连结层包含一结晶嵌段复合物及其中该连结层系配置在该第一层与第二层间，该第一层系配置在该连结层的第一表面上，该第二层系配置在该连结层的第二表面上，其中该第二表面系与该第一表面呈相对地配置；其中该多层膜经双轴定向。于本文中也揭示出一种制造多层膜的方法，其包括共挤压一多层膜，其中该多层膜包含一第一层及一第二层；及一连结层，其中该连结层包含一结晶嵌段复合物及其中该连结层系配置在该第一层与第二层间，该第一层系配置在该连结层的第一表面上，该第二层系配置在该连结层的第二表面上，其中该第二表面系与该第一表面呈相对地配置；吹出或流延该多层膜；及双轴定向该膜。; and a tie layer; where the tie layer comprises a crystalline block composite and where the tie layer is disposed between the first layer and the second layer; the first layer being disposed on a first surface of the tie layer; the second layer being disposed on a second surface of the tie layer; where the second surface is opposedly disposed to the first surface; where the multilayered film is biaxially oriented. Disclosed herein too is a method of manufacturing a multilayer film comprising coextruding a multilayer film comprising a first layer and a second layer; and a tie layer; where the tie layer comprises a crystalline block composite and where the tie layer is disposed between the first layer and the second layer; the first layer being disposed on a first surface of the tie layer; the second layer being disposed on a second surface of the tie layer; where the second surface is opposedly disposed to the first surface; blowing or casting the multilayered film; and biaxially orienting the film.