公开(公告)号：US07794849B2

公开(公告)日：2010-09-14

申请号：US12425167

申请日：2009-04-16

申请人： Pang-Chia Lu ,  Robert G. Peet ,  Benoit Ambroise ,  Linda Maria Van den Bossche ,  Nancy Nadine Vanderheyden ,  François Bosch ,  Jacques Moriau ,  Lindsay J. Mendes ,  Syd R. Wright

发明人： Pang-Chia Lu ,  Robert G. Peet ,  Benoit Ambroise ,  Linda Maria Van den Bossche ,  Nancy Nadine Vanderheyden ,  François Bosch ,  Jacques Moriau ,  Lindsay J. Mendes ,  Syd R. Wright

IPC分类号： B32B27/08

CPC分类号： B32B27/08 ,  B29C35/0805 ,  B29C55/023 ,  B29C55/14 ,  B32B27/306 ,  B32B27/32 ,  B32B37/153 ,  B32B38/1825 ,  B32B2038/0028 ,  B32B2255/10 ,  B32B2255/205 ,  B32B2307/518 ,  Y10T428/31504 ,  Y10T428/31678 ,  Y10T428/31855 ,  Y10T428/31909 ,  Y10T428/31938

摘要： A film structure including at least a base layer containing a thermoplastic polymer and at least an outer layer containing a low melting point polymer. Methods of manufacturing the film structure, including the steps of coextruding melts corresponding to the individual layers of the film structure through a die and thereafter: simultaneously biaxially stretching the coextruded film sheet; or sequentially biaxially stretching the coextruded film sheet, wherein the machine-direction orientation (MDO) is performed with a radiant-heated MDO stretcher. An extrusion-coated film structure exhibiting strong bond adhesion, and a method of manufacturing the same are also provided.

摘要翻译： 至少包含含有热塑性聚合物的底层和至少含有低熔点聚合物的外层的薄膜结构。 制造薄膜结构的方法包括以下步骤：通过模具共挤出对应于薄膜结构的各层的熔融物，然后同时双轴拉伸共挤出的薄膜片; 或顺序地双轴拉伸共挤出膜片，其中机器方向取向（MDO）用辐射加热的MDO担架进行。 还提供了具有强粘合粘合性的挤出涂布膜结构及其制造方法。