Patent ID: 7803452
Filing Date: 2010-09-28
Classification: B32B,C08J,Y10T

Abstract:
1. A release film comprising: a base material having both major surfaces; a releasing agent layer provided on one major surface of the base material, the releasing agent layer having an outer surface having a surface roughness; an antistatic layer provided on the other major surface of the base material, the antistatic layer having an outer surface having a surface roughness; and a green sheet provided on the outer surface of the releasing agent layer; wherein the releasing agent layer and the antistatic layer are mainly composed of the same material, and the material constituting the releasing agent layer is a silicone-based resin, long-chain alkyl-based resin, fluorine-based resin or alkyd-based resin, wherein the surface roughness of the outer surface of the releasing agent layer is defined as Ra