公开(公告)号：US20180134921A1

公开(公告)日：2018-05-17

申请号：US15869951

申请日：2018-01-12

Applicant: FUJIFILM Corporation

Inventor： Naoki NAKAMURA ,  Takahiro NAKAZAWA ,  Yoshihito HODOSAWA ,  Masanori TAKASE ,  Atsushi INADA ,  Junichi SUGIYAMA

IPC: C09J7/38 ,  B05D1/36 ,  B05D3/04 ,  B05D5/10 ,  C09J183/04

CPC classification number: C09J7/38 ,  B05D1/36 ,  B05D3/0413 ,  B05D5/10 ,  C09J183/04 ,  C09J2201/122 ,  C09J2201/32 ,  C09J2201/36 ,  C09J2201/622 ,  C09J2205/102 ,  C09J2483/00

Abstract: A pressure sensitive adhesive sheet includes a transparent sheet base material, a first pressure sensitive adhesive layer, and a second pressure sensitive adhesive layer, and a pressure sensitive adhesive strength by a pressure of 1 N/cm2 or less is 0 N/25 mm. The first pressure sensitive adhesive layer includes a first silicone-based pressure sensitive adhesive and the second pressure sensitive adhesive layer has a second silicone-based pressure sensitive adhesive and a plurality of protrusions formed of a plurality of fine particles. A first sheet surface is a surface to adhere to an adherend. An average particle diameter of the fine particles is 2 μm or more and 15 μm or less and a coverage ratio of the first sheet surface with the fine particles is 10% or more and 70% or less.