Patent ID: 7807770
Filing Date: 2010-10-05
Classification: C08L,D01F,Y10T

Abstract:
1. A drawn tape, fibre or filament comprising a multimodal polyethylene resin having: a density of at least 940 kg/m a melt index MI a molecular weight distribution (M a relationship between dynamic viscosity η a melt storage modulus G′, measured at 190° C. and a dynamic frequency where the loss modulus G″=3000 Pa, of greater than 710 Pa, and a relationship between said melt storage modulus and the melt storage modulus at a dynamic frequency where the loss modulus G″=500 Pa, expressed by the equation G′(G″=3000)>300+5.5*G′(G″=500), wherein the tape, fibre or filament has been drawn to at least 4 times its original length.