公开(公告)号：US20180171182A1

公开(公告)日：2018-06-21

申请号：US15128334

申请日：2015-04-02

Applicant: LINTEC CORPORATION

Inventor： Kazue UEMURA ,  Takamasa KASE ,  Yumiko AMINO ,  Kiichiro KATO ,  Shigeru SAITO

IPC: C09J7/38 ,  C09J121/00 ,  C09J133/08 ,  C09J167/00 ,  C09J175/04

CPC classification number: C09J7/383 ,  B05D1/36 ,  B05D3/108 ,  B05D5/00 ,  C08K3/013 ,  C08K3/34 ,  C08K3/346 ,  C08K3/36 ,  C08K7/00 ,  C08K2201/003 ,  C09J5/00 ,  C09J7/10 ,  C09J7/20 ,  C09J7/203 ,  C09J7/22 ,  C09J7/255 ,  C09J7/38 ,  C09J7/385 ,  C09J11/04 ,  C09J121/00 ,  C09J133/08 ,  C09J167/00 ,  C09J175/04 ,  C09J201/00 ,  C09J2201/16 ,  C09J2201/28 ,  C09J2201/36 ,  C09J2201/606 ,  C09J2205/10 ,  C09J2205/102 ,  C09J2205/114 ,  C09J2400/163 ,  C09J2421/00 ,  C09J2433/00 ,  C09J2467/006 ,  C09J2475/00 ,  C09J2483/005 ,  C08K3/00

Abstract: A pressure sensitive adhesive sheet is provided, containing a substrate or a release material having thereon a resin layer including a resin part (X) containing as a main component a hydrocarbon resin having a carbon atom on a main chain of a structural unit, and a particle part (Y) consisting of fine particles containing silica particles, and at least a surface (α) of the resin layer being opposite to the side of the substrate or being opposite to the side which the release material is provided, having pressure sensitive adhesiveness, the resin layer containing a multilayer structure having a layer (Xα) and a layer (Y1) in this order in the thickness direction from the side of the surface (α), in a measurement of an intensity ratio (Si/C) of a peak intensity (Si) derived from a silicon atom and a peak intensity (C) derived from a carbon atom with an energy dispersive X-ray analyzer in the thickness direction from the side of the surface (α) of the resin layer, the intensity ratio in the layer (Xα) being less than 0.10, and the intensity ratio in the layer (Y1) being 0.10 or more, the surface (α) having concave portions of irregular shapes.

公开(公告)号：US20190085215A1

公开(公告)日：2019-03-21

申请号：US15762909

申请日：2016-09-27

Applicant: LINTEC CORPORATION

Inventor： Kazue UEMURA ,  Yusuke MATSUOKA ,  Takamasa KASE ,  Kiichiro KATO

IPC: C09J7/38 ,  B32B7/06 ,  B32B7/12 ,  B32B3/30 ,  B32B27/36 ,  B32B27/20 ,  C09J11/04

Abstract: Provided is a pressure sensitive adhesive sheet including a resin layer on a substrate or a release material, at least a surface (α) of the resin layer on the side opposite to the side thereof on which the substrate or the release material is provided having pressure sensitive adhesiveness, wherein a concave portion and plural flat faces having an irregular shape exist in a region (Dc) surrounded by an arbitrarily predetermined circle on the surface (α) of the resin layer; and with respect to one or more flat faces (S) among the plural flat faces, the one or more flat faces (S) excluding flat faces having a cumulative relative frequency of 30% or less determined by adding the relative frequency from the respective flat faces with a smaller area, an rMAX value of the flat faces (S) calculated from specified operations is 0.60 or less

公开(公告)号：US20180265749A1

公开(公告)日：2018-09-20

申请号：US15762907

申请日：2016-09-27

Applicant: LINTEC CORPORATION

Inventor： Kazue UEMURA ,  Kiichiro KATO ,  Yumiko AMINO ,  Koji TSUCHIBUCHI ,  Takamasa KASE ,  Yusuke MATSUOKA

IPC: C09J7/38 ,  B32B7/06 ,  B32B7/12 ,  B32B27/36 ,  B32B27/08 ,  C09J7/25 ,  C09J11/04

Abstract: A pressure sensitive adhesive sheet including, on a substrate or a release material, a resin layer, at least a surface (α) of the resin layer on the opposite to the side on which the substrate or release material is provided having pressure sensitive adhesiveness, wherein a concave portion and a flat face exist on the surface (α) of the resin layer, and a width of the concave portion observed from the side of the surface (α) is non-uniform, and in a region (D) of 8 mm in length×10 mm in width as freely-selected on the surface (α), a concave portion having an area of 70 to 99.99% relative to 100% of a total area of the concave portions existing in the region (D) exists.

公开(公告)号：US20170210949A1

公开(公告)日：2017-07-27

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

CPC classification number: C09J7/383 ,  B05D1/36 ,  B05D3/108 ,  B05D5/00 ,  C08K3/013 ,  C08K3/34 ,  C08K3/346 ,  C08K3/36 ,  C08K7/00 ,  C08K2201/003 ,  C09J5/00 ,  C09J7/02 ,  C09J7/0207 ,  C09J7/0217 ,  C09J7/0253 ,  C09J7/026 ,  C09J7/0285 ,  C09J7/10 ,  C09J7/20 ,  C09J7/203 ,  C09J7/22 ,  C09J7/255 ,  C09J7/38 ,  C09J7/385 ,  C09J11/04 ,  C09J121/00 ,  C09J133/08 ,  C09J167/00 ,  C09J175/04 ,  C09J201/00 ,  C09J2201/16 ,  C09J2201/28 ,  C09J2201/36 ,  C09J2201/606 ,  C09J2205/10 ,  C09J2205/102 ,  C09J2205/114 ,  C09J2400/163 ,  C09J2421/00 ,  C09J2433/00 ,  C09J2467/006 ,  C09J2475/00 ,  C09J2483/005 ,  C08K3/00

Abstract: 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 (α) 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 one or more concave portions exist on the surface (α), and when the surface (α) of the resin layer is adhered to a smooth surface of a light transmissive adherend having a smooth surface to give a laminate, the pressure sensitive adhesive sheet satisfies the following requirements (1) and (2). Requirement (1): in an environment at 23° C. and 50% RH, the areal ratio (S1) of the attached area against the smooth surface of the light transmissive adherend to the surface (α) before heating is 10 to 95%. Requirement (2): after the laminate is statically left in an environment at 80° C. for 30 minutes, the area increase rate {[(S2−S1)/S1]×100} calculated from the areal ratio (S2) of the attached area after heating of the smooth surface of the light transmissive adherend to the surface (α) and the areal ratio (S1) thereof before heating, is −10 to 20%.