| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold releasing film suitable for an application which hates silicones and in which peelability of a constant level is expected also on the opposite surface side to a release surface. SOLUTION: The film has release layers on both sides of a substrate polyester film. The existence ratio (Si/C) of silicon atoms to carbon atoms in one release layer A is 0.01 or below, and the existence ratio (X/C) of halogen atoms to carbon atoms is 0.1 or below. Peeling force after immersion in toluene is 90 mN/cm or below, and a residual adhesion rate is 80% or above. COPYRIGHT: (C)2004,JPO&NCIPI |
