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1. (WO2018203537) IMPACT ABSORPTION SHEET AND DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET

Pub. No.:    WO/2018/203537    International Application No.:    PCT/JP2018/017272
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Sat Apr 28 01:59:59 CEST 2018
IPC: B32B 7/02
B32B 27/32
C08J 5/18
C09J 201/00
Applicants: SEKISUI CHEMICAL CO., LTD.
積水化学工業株式会社
Inventors: HIRATA, Toshiaki
平田 稔朗
IWAI, Yuki
岩井 勇樹
UCHIDA, Noriyuki
内田 徳之
Title: IMPACT ABSORPTION SHEET AND DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET
Abstract:
A purpose of the present invention is to provide an impact absorption sheet that has high impact resistance and also exhibits excellent resistance to sebum. Another purpose of the present invention is to provide a double-sided pressure-sensitive adhesive sheet that comprises said impact absorption sheet. The present invention pertains to an impact absorption sheet having an impact absorption layer, wherein the impact absorption layer has a maximum loss tangent (tan δ) value of at least 0.7 in a frequency range of 1.0×103-1.0×106.5 Hz at 23°C, and a crystallinity degree of at least 2%.