Patent ID: 6294268
Filing Date: 2001-09-25
Classification: B29C,B29K,B32B,B63B,Y10T

Abstract:
An inflation film comprising a multi-layer laminate comprising at least two layers, said multi-layer laminate comprising:(A) an oriented layer of an ultra-high molecular weight polyolefin having a limiting viscosity .eta. of not smaller than 5 dl/g; and(B) a layer of a thermoplastic resin having a melting point which is lower than that of said ultra-high molecular weight polyolefin by not less than 5.degree. C. as measured by a DSC methodwherein said multi-layer laminate has a coefficient of plane orientation ""fa"" of from 0.20 to 0.60 and a coefficient of axial orientation ""fc"" of from 0.05 to 0.60, as measured by an X-ray diffraction method.