Patent ID: 8124243
Filing Date: 2012-02-28
Classification: B32B,C08J,Y10T

Abstract:
1. A thermoplastic film comprising at least a core layer, and first and second skin layers, said core layer comprising from 5 to 15 wt % CaCO said first and second skin layers comprising LLDPE and from 3 to 20 wt % TiO from 3 to 20 wt %, by weight of the core or skin layer, of a plasticizer in either one skin layer or the core layer; said thermoplastic film having been subjected to a post-quench biaxial orientation process whereby said thermoplastic film has a machine direction orientation ratio of at least 2, a transverse direction orientation ratio of at least 4, a machine direction ultimate tensile strength of at least 45 MPa, and a transverse direction ultimate tensile strength of at least 65 MPa.