公开(公告)号：US10604684B2

公开(公告)日：2020-03-31

申请号：US14768369

申请日：2014-03-26

Applicant: LINTEC CORPORATION

Inventor： Haruya Yamada ,  Kiichiro Kato ,  Tomio Hatanaka ,  Takashi Sugino ,  Satoshi Kawada

IPC: C09J133/08 ,  C09J5/00 ,  C09J171/02 ,  C08K5/42 ,  C09J9/00 ,  B32B27/30 ,  C08F220/18 ,  C09J7/38 ,  C08L71/03 ,  C08L33/08 ,  B32B7/06 ,  B32B7/12 ,  C09J11/08 ,  C08K5/17

Abstract: An electrically peelable pressure sensitive adhesive composition, which contains an acrylic polymer (A), a (poly)alkylene polyol (B) having a number average molecular weight of no greater than 2000, and an ammonium salt (C), has a high adhesiveness before voltage application, but the adhesiveness can decrease effectively by voltage application for a short time.

公开(公告)号：US10221339B2

公开(公告)日：2019-03-05

申请号：US15300141

申请日：2015-04-02

Applicant: LINTEC CORPORATION

Inventor： Satoshi Kawada ,  Kiichiro Kato ,  Kazue Uemura ,  Yumiko Amino ,  Shigeru Saito ,  Koji Tsuchibuchi ,  Takamasa Kase

IPC: C09J7/02 ,  C08K3/34 ,  C09J133/08 ,  C09J5/00 ,  C09J7/38 ,  C09J201/00 ,  B05D1/36 ,  B05D3/10 ,  B05D5/00 ,  C09J11/04 ,  C09J7/22 ,  C09J7/20 ,  C09J7/25 ,  C09J7/10 ,  C09J121/00 ,  C09J167/00 ,  C09J175/04 ,  C08K3/013 ,  C08K3/36 ,  C08K7/00

Abstract: A pressure sensitive adhesive sheet including, on a substrate or a release material, a resin layer including a resin part (X) containing a resin as a main component, and a particle part (Y) consisting of fine particles and having a surface (α) having pressure sensitive adhesiveness and one or more concave portions. When the surface (α) of the resin layer is adhered to a smooth surface of a light transmissive adherend to give a laminate, the areal ratio (S1) of the attached area adhered to the smooth surface to the surface (α) is 10 to 95% at 23° C. and 50% RH, and the area increase rate {[(S2−S1)/S1]×100} is −10 to 20% after heating of the smooth surface by statically leaving the laminate at 80° C. for 30 minutes.