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1. (WO2018079051) ADHESIVE FILM

Pub. No.:    WO/2018/079051    International Application No.:    PCT/JP2017/030774
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Tue Aug 29 01:59:59 CEST 2017
IPC: C09J 7/02
B32B 27/00
B32B 27/30
C09J 133/00
C09J 175/04
Applicants: RIKEN TECHNOS CORPORATION
リケンテクノス株式会社
Inventors: INOMATA Hitomi
猪股 仁美
WAKUGAWA Takio
湧川 滝雄
Title: ADHESIVE FILM
Abstract:
In one embodiment, the present invention is an adhesive film having (α) a layer of polyvinyl chloride resin film and (β) an adhesive layer in the stated order from the surface-layer side, wherein the (β) adhesive layer is formed from an adhesive including: (A) 100 parts by mass of an acrylic polymer that satisfies the features (a1) and (a2), specifically (a1) an acid value of 18-27 mg KOH/g, and (a2) a mass-average molecular weight of 500,000 to 1,000,000; and (B) 0.1-3 parts by mass of a compound having two or more isocyanate groups per molecule. In another embodiment, the present invention is an adhesive film having (α) a layer of polyvinyl chloride resin film and (β) an adhesive layer in the stated order from the surface-layer side, wherein the (β) adhesive layer has a tackiness of 12-25 N at a surface temperature of 5°C and has a tackiness of 12-23 N at a surface temperature of 35°C.