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1. 发明授权

US5236761A Dimensionally stable reinforced film 失效
标题翻译：尺寸稳定的增强膜
公开(公告)号：US5236761A
公开(公告)日：1993-08-17
申请号：US756464
申请日：1991-09-09
申请人： T. Kregg Cammack, II , Eugene F. Lopez
发明人： T. Kregg Cammack, II , Eugene F. Lopez
IPC分类号： B29C70/08 , B29C70/22 , B32B5/08
CPC分类号： B29C70/22 , B29C70/086 , B32B5/08 , B29K2277/00 , Y10T428/24058 , Y10T428/24074 , Y10T428/24083 , Y10T428/24091 , Y10T428/28 , Y10T428/2813 , Y10T428/2848 , Y10T428/2852
摘要： The invention provides a substantially flat film or metallized film, reinforced with regularly spaced reinforcing yarns in the fill and warp direction having a residual shrinkage of less than about 2.0%, which is dimensionally stable over a wide range of temperatures, along with a process for producing the same. Synthetic reinforcing yarns, including nylon yarns, can be preshrunk by heating the spooled yarn in an inert atmosphere for a sufficient period of time to reduce the residual shrinkage in the spooled yarn to less than about 2.0%. This preshrunk yarn can then be bonded to a film or metallized film substrate using a wide variety of adhesives, including hot melt adhesives, or water-based adhesives cured by application of heat. Because the residual shrinkage in the reinforcing fibers has been reduced, subsequent application of heat during manufacturing processes, or in the use environment, will not produce the curling or puckering of the film or separation of the metal layer.
摘要翻译：本发明提供了基本上平坦的薄膜或金属化膜，其在填充和经向方向上以规则间隔的增强纱线增强，其残余收缩率小于约2.0％，其在宽的温度范围内尺寸稳定，生产相同。包括尼龙纱线在内的合成增强纱线可以通过在惰性气氛中加热缠绕纱线足够长的时间来预先缠绕，从而将缠绕纱线中的残余收缩率降至小于约2.0％。然后可以使用各种各样的粘合剂（包括热熔粘合剂）或通过施加热固化的水性粘合剂将该预浸纱线粘合到膜或金属化膜基材上。由于增强纤维中的残余收缩已经减少，在制造过程中或在使用环境中随后的加热不会产生膜的卷曲或起皱或金属层的分离。

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