| 摘要 |
<P>PROBLEM TO BE SOLVED: To provided a substrate-less, double-sided, pressure-sensitive adhesive sheet which minimizes the flaw resulting from foreign matter generated in a manufacturing step and thus exhibits excellent optical inspectability and which achieves a high yield in a step of laminating the pressure-sensitive adhesive sheet on other member and thus ensures high productivity. <P>SOLUTION: The substrate-less, double-sided, pressure-sensitive adhesive sheet 10 obtained by laminating a first release film 31 on one surface of a pressure-sensitive adhesive layer 11 and laminating a second release film 32 on the other surface thereof, wherein the first release film is a biaxially oriented polyester film having a release layer which comprises both a silicone resin that has alkenyl and alkyl groups as functional groups and that contains a migratory component and a platinum-based catalyst and which exhibits a residual adhesion ratio of 60 to 90%, a low-speed peel force of 10 to 20 mN/cm at a peel rate of 300 mm/min, a high-speed peel force of up to 2.5 times the low-speed peel force at a peel rate of 10,000 mm/min, and a Martens hardness of 400 N/mm<SP POS="POST">2</SP>or higher as determined with a 115° triangular pyramid indenter and a test force of 0.10 mN. <P>COPYRIGHT: (C)2013,JPO&INPIT |
