RELEASE FILM AND ADHESIVE FILM USING IT

摘要

PROBLEM TO BE SOLVED: To provide a release film which makes it possible to manufacture an adhesive film more accurately controlled in its thickness than before by a method for forming the adhesive film by coating the mold release layer of the release film with a coating agent and solidifying the coating layer of the release film, and the adhesive film formed using the release film.;SOLUTION: The base material of the release film is formed of a porous polyester film with a thickness irregularity of 5% or below and a void ratio of 5-50 vol.%. Further, the radiation absorbance of the polyester film is preferably set to 85% or below of a non-porous state by making the polyester film porous. Furthermore, the polyester film preferably contains 0.2-20 vol.% of an inorganic filler. The adhesive film is formed by coating the mold release layer of the release film with the coating agent and subsequently solidifying the coating layer on the release film.;COPYRIGHT: (C)2007,JPO&INPIT