Patent ID: 7022396
Filing Date: 2006-04-04
Classification: C08J,C08L,G11B,Y10T

Abstract:
1. A biaxially oriented film comprising; at least two layers including a film layer A of a polymer alloy composed of at least one of polyethylene terephthalate or poly(ethylene-2,6-naphthalenedicarboxylate) (polymer 1) and a polyetherimide (polymer 2) as essential components, and a base layer B; said film layer A being laminated as an outermost layer to the base layer B; wherein a content W 0≦W 5≦W 10≦W wherein micro protrusions having a height of 2 to 50 nm are formed at a density of 1,000,000 to 90,000,000/mm 2 on an outer surface of the film layer A.