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1. (WO2015046341) ADHESIVE SHEET

Pub. No.:    WO/2015/046341    International Application No.:    PCT/JP2014/075450
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Fri Sep 26 01:59:59 CEST 2014
IPC: C09J 7/02
C09J 133/04
H01L 21/301
H01L 21/304
Inventors: MIYANAGA, Tomoharu
宮永 朋治
加太 章生
SATO, Akinori
佐藤 明徳
An adhesive sheet (1) comprising a base material (2) and an adhesive agent layer (3) that is laminated on at least one surface of the base material (2), wherein the adhesive agent layer (3) is formed from an adhesive agent composition comprising an energy-ray-curable (meth)acrylic acid ester copolymer (A) and an epoxy-type cross-linking agent (B), and the (meth)acrylic acid ester copolymer (A) is produced by reacting an acrylic copolymer (AP) with a curable-group-containing compound (A4), the acrylic copolymer (AP) is produced by copolymerizing a (meth)acrylic acid alkyl ester monomer (A1), a hydroxyl-group-containing monomer (A2) that has a hydroxy group and a functional-group-containing monomer (A3) that has a functional group capable of reacting with an epoxy group (which is different from a hydroxy group), and the curable-group-containing compound (A4) has a functional group capable of reacting with a hydroxy group and also has an energy-ray-curable carbon-carbon double bond. In the adhesive sheet (1), the adhesion between the adhesive agent layer (3) and the base material (2) is excellent even after the irradiation of the adhesive sheet (1) with energy ray.