Pressure sensitive adhesive sheet

Japanese Patent JP5982593

B2

Provided is a pressure sensitive adhesive sheet containing, on a substrate or a release material, a resin layer that includes a resin part (X) containing a resin as a main component, and a particle part (Y) consisting of fine particles, at least a surface (±) of the resin layer being opposite to the side thereof on which the substrate or the release material is provided having pressure sensitive adhesiveness, wherein plural concave portions having a maximum height difference of 0.5 µm or more exist in a prescribed region (P) on the surface (±), and 95% or more of the plural concave portions existing inside the region (P) have shapes differing from each other, and when the surface (±) of the resin layer is attached to a smooth surface of a light transmissive adherend having a smooth surface, the areal ratio of the attached area against the smooth surface of the light transmissive adherend to the surface (±) is 10 to 95%. When attached to an adherend, the pressure sensitive adhesive sheet can readily remove air accumulation to be formed and therefore exhibits excellent air escape property, and have good blister resistance and pressure sensitive adhesive characteristics.

Kazue Uemura
Koichiro Kato
Yumiko Amino
Saitou

JP2015563015A

August 31, 2016

April 02, 2015

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LINTEC CORPORATION

C09J7/10; C09J11/04; C09J201/00

JP2012197332A	2012-10-18
JP2008150431A	2008-07-03
JP2002275433A	2002-09-25
JP2004115766A	2004-04-15
JP2012197332A	2012-10-18
JP2008150431A	2008-07-03
JP2002275433A	2002-09-25
JP2004115766A	2004-04-15

WO2015152353A1	2015-10-08
WO2015152353A1	2015-10-08

Tamotsu Otani
Makoto Kataoka

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