Patent ID: 6013373
Filing Date: 2000-01-11
Classification: B29K,B32B,Y10T

Abstract:
A multilayer film comprising a polypropylene layer, a thermotropic liquid crystalline polymer layer, and a hot melt adhesive layer between said layers, wherein said hot melt adhesive is selected from the group consisting of (1) a polyolefin blend comprising a substantially crystalline first poly(.alpha.-olefin), a substantially amorphous second poly(.alpha.-olefin), and an oligomer of a third .alpha.-olefin, which has at least 8 carbon atoms in the .alpha.-olefin monomer; and (2) a blend of poly(propylene-graft-maleic anhydride) and a dimer acid based polyamide in a ratio of about 30:70 to about 70:30 by weight, and wherein said liquid crystalline polymer layer consists essentially of a thermotropic liquid crystalline polymer.