Patent ID: 6783889
Filing Date: 2004-08-31
Classification: B32B,C08J,C08L,G11B,Y10S,Y10T

Abstract:
A polyester film comprising:a polyester resin; and a thermoplastic resin other than a polyester resin, wherein said thermoplastic resin is at least one thermoplastic resin selected from the group consisting of a polyimide resin, a polysulfone resin, and a poly(ether sulfone) resin; wherein the number H1 of coarse projections having a height of 0.28 &mgr;m or more per 100 cm2 of at least one surface of the polyester film, and the number H2 of coarse projections having a height of 0.56 &mgr;m or more per 100 cm2 of said at least one surface of the polyester film satisfy the conditions: 0&lE;H1&lE;100 and 0&lE;H2&lE;10.