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    • 2. 发明申请
    • APPARATUS FOR MANUFACTURING MULTILAYER POLYMERIC FILMS
    • 制造多层聚合物薄膜的装置
    • WO2011140019A1
    • 2011-11-10
    • PCT/US2011/034898
    • 2011-05-03
    • 3M INNOVATIVE PROPERTIES COMPANYNEAVIN, Terence D.BIEGLER, Robert M.FAY, William T.
    • NEAVIN, Terence D.BIEGLER, Robert M.FAY, William T.
    • B29C47/06B29C47/58
    • B29C47/707B29C47/0021B29C47/065B29C47/145B29C47/56
    • A feedblock including a first packet creator (56) that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator (58) that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner (54) that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross -web direction prior to being combined with one another.
    • 包括第一分组创建器(56)的馈送块,其形成包括第一多个聚合层的第一分组,所述第一多个层包括至少四个第一单独的聚合物层; 以及第二分组创建器(58),其形成包括第二多个聚合层的第二分组,所述第二多个层包括至少四个第二单独聚合层,其中所述第一和第二分组创建者被配置为使得对于每个分组 大致同时形成多个聚合物层的各个聚合物层。 馈送块可以包括分组组合器(54),其接收并组合第一和第二主分组以形成多层流。 在一些示例中,在彼此组合之前,第一和第二主分组中的至少一个可以在横向网络方向上扩展。