Patent ID: 7318961
Filing Date: 2008-01-15
Classification: B29C,B29K,B32B,D01D,D01F,Y10S,Y10T

Abstract:
1. Monoaxially drawn polyolefin multilayer film, tape or yarn of the AB or ABA type, having a total stretch ratio of more than 15, having an E-modulus of at least 12.5 GPa, substantially consisting of a central layer (B) of a polyolefin selected from polyethylene and polypropylene, and one or two other layers (A) of a polyolefin from the same class as the material of the central layer (B), the DSC melting point of the material of the said other layers (A) being lower than the DSC melting point of the material of the said central layer (B), wherein the central layer (B) is between 50 and 99 wt. % of the material and the other layers (A) between 1 and 50 wt. % of the material.