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1. (WO2018101295) TRANSPARENT ELECTROCONDUCTIVE COVER TAPE

Pub. No.:    WO/2018/101295    International Application No.:    PCT/JP2017/042730
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: B65D 73/02
B32B 7/02
B32B 27/18
B32B 27/30
B32B 27/32
B65D 65/40
B65D 85/86
Applicants: DAI NIPPON PRINTING CO., LTD.
大日本印刷株式会社
Inventors: MURATA Ayuro
村田 鮎郎
Title: TRANSPARENT ELECTROCONDUCTIVE COVER TAPE
Abstract:
Provided is a transparent electroconductive cover tape having adequate seal strength and stable, easy releasability, and that demonstrates excellent antistatic properties with applicability to electronic component packaging while maintaining high transparency. A transparent electroconductive cover tape that can be heat-sealed to a carrier tape, wherein a base material film, an adhesive layer, a first intermediate layer, a second intermediate layer, and a heat-seal layer are laminated in the stated order, the first intermediate layer comprising a polyethylene resin, the second intermediate layer comprising a resin composition that includes an ethylene/α-olefin copolymer and a styrene/butadiene block copolymer, the first intermediate layer and the second intermediate layer being formed by coextrusion, the heat seal layer comprising a transparent electroconductive heat seal material in which electroconductive fine particles have been dispersed in an acrylic resin, and the electroconductive fine particles being barium sulfate particles or silicon dioxide particles in which tin oxide doped with antimony has been coated on the surface, or acicular particles of tin oxide doped with antimony.