Patent ID: 6713169
Filing Date: 2004-03-30
Classification: B32B,B41M,Y10S,Y10T

Abstract:
A multi-layered stretched resin film comprising:a base layer (A) containing 40 to 90 wt % of a polyolefinic resin and 10 to 60 wt % of an inorganic fine powder or an organic filler; and an amorphous resin-containing layer (B) provided on at least one side of such base layer (A), and containing 0 to 85 wt % of a polyolefinic resin and 15 to 100 wt % of an amorphous resin; said amorphous resin-containing layer (B) having a porosity of 5% or below, and having a glass transition point of 70-140Â° C. further comprising a surface layer (C) containing 30 to 85 wt % of a polyolefinic resin and 15 to 70 wt % of an inorganic fine powder or an organic filler, said surface layer (C) being provided on at least one side of a stack which comprises said base layer (A) and said amorphous resin-containing layer (B) provided on at least one side thereof.