公开(公告)号：US20180282590A1

公开(公告)日：2018-10-04

申请号：US15763357

申请日：2016-09-27

Applicant: LINTEC CORPORATION

Inventor： Yumiko AMINO ,  Kazue UEMURA ,  Kiichiro KATO

IPC: C09J9/00 ,  C09J11/04 ,  C09J7/38 ,  C09J5/00 ,  C09J7/40 ,  C09J7/25

Abstract: Provided a pressure sensitive adhesive sheet including a substrate or a release material having thereon a resin layer that contains a resin part (X) containing a carbon atom-containing resin having a carbon atom in a main chain of a constitutional unit as a main component, and a particle part (Y) consisting of fine particles containing silica particles, a surface (α) having pressure sensitive adhesiveness, the surface (α) having a concave portion and a flat face existing thereon, a prescribed section (P1) having existing on the side of the surface (α) a concave portion having a prescribed maximum height difference, and a flat portion corresponding to a cut portion of the flat face existing in a region (P) and being substantially in parallel to a surface of the substrate or the release material in contact with the resin layer, and an absolute value of a ratio of an intensity ratio of a peak intensity derived from silicon atoms and a peak intensity derived from carbon atoms measured by EDX a for a prescribed region (S) that is positioned under one of the concave portion existing on the cross section, and the intensity ratio measured by EDX for a prescribed region (T) that is positioned under one of the flat portion existing on the cross section being 0.2 or less.

公开(公告)号：US20170174943A1

公开(公告)日：2017-06-22

申请号：US15129892

申请日：2015-04-02

Applicant: LINTEC CORPORATION

Inventor： Kiichiro KATO ,  Kazue UEMURA ,  Yumiko AMINO ,  Shigeru SAITO ,  Koji TSUCHIBUCHI ,  Masaru MATSUSHIMA

IPC: C09J7/02

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: Provided is a pressure sensitive adhesive sheet containing a resin layer on a substrate or a release material, 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 formed not by transferring an emboss pattern exist on the surface (α). The pressure sensitive adhesive sheet has excellent air escape property capable of readily removing air accumulation that may be formed on attaching

公开(公告)号：US20180215961A1

公开(公告)日：2018-08-02

申请号：US15128676

申请日：2015-04-02

Applicant: LINTEC CORPORATION

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

IPC: C09J7/38 ,  C09J11/04 ,  C09J7/25 ,  C09J7/40

CPC classification number: C09J7/385 ,  C08K3/013 ,  C08K3/22 ,  C08K3/34 ,  C08K3/36 ,  C09J7/00 ,  C09J7/20 ,  C09J7/255 ,  C09J7/401 ,  C09J11/04 ,  C09J201/00 ,  C09J2201/28 ,  C09J2205/102 ,  C09J2433/00 ,  C09J2467/00 ,  C09J2483/005

Abstract: 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 (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 plural concave portions having a maximum height difference of 0.5 μm or more exist in a prescribed region (P) on the surface (α), and 95% or more of the plural concave portions existing inside the region (P) have shapes differing from each other, and when the surface (α) 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 (α) 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.

公开(公告)号：US20170210085A1

公开(公告)日：2017-07-27

申请号：US15129950

申请日：2015-04-02

Applicant: LINTEC CORPORATION ,  NIPPON PAINT INDUSTRIAL COATINGS CO., LTD.

Inventor： Kazue UEMURA ,  Kiichiro KATO ,  Shigeru SAITO ,  Yumiko AMINO ,  Masanori KIDO ,  Shinji NISHIOKA ,  Masato KISHI

IPC: B32B3/26 ,  B32B27/20 ,  B32B37/12 ,  B32B7/12

CPC classification number: B32B3/263 ,  B32B3/00 ,  B32B3/26 ,  B32B7/00 ,  B32B7/02 ,  B32B7/12 ,  B32B19/00 ,  B32B19/04 ,  B32B27/00 ,  B32B27/06 ,  B32B27/08 ,  B32B27/14 ,  B32B27/18 ,  B32B27/20 ,  B32B27/302 ,  B32B27/308 ,  B32B27/365 ,  B32B37/12 ,  B32B2250/00 ,  B32B2255/00 ,  B32B2255/205 ,  B32B2264/00 ,  B32B2264/10 ,  B32B2264/102 ,  B32B2307/30 ,  B32B2307/306 ,  B32B2307/40 ,  B32B2307/50 ,  B32B2405/00 ,  B32B2451/00 ,  C08K3/013 ,  C08K2003/2227 ,  C09J7/22 ,  C09J7/29 ,  C09J7/38 ,  C09J2201/36 ,  C09J2205/102 ,  C09J2400/123 ,  C09J2400/163 ,  C09J2433/00 ,  C09J2467/006

Abstract: The present invention relates to a pressure sensitive adhesive sheet containing, laminated in this order, a supporting substrate, a pressure sensitive adhesive layer (X), a continuous void-containing layer including a composition containing fine particles (excepting silica), and a pressure sensitive adhesive layer (Y), the continuous void-containing layer having a mass concentration of the fine particles of from 45 to 100%.

公开(公告)号：US20180273810A1

公开(公告)日：2018-09-27

申请号：US15763365

申请日：2016-09-27

Applicant: LINTEC CORPORATION

Inventor： Kazue UEMURA ,  Kaisuke YANAGIMOTO ,  Kiichiro KATO

IPC: C09J9/00 ,  C09J11/04 ,  C09J7/38 ,  C09J5/00 ,  C09J7/40 ,  C09J7/25

Abstract: Provided is a pressure sensitive adhesive sheet including a resin layer that is a multilayer structure containing at least a layer (Xβ), a layer (Y1), and a layer (Xα) laminated in this order, a surface (α) of the layer (Xα) of the resin layer having pressure sensitive adhesiveness, at least a constitutional component contained in the layer (Y1) being different from constitutional components contained in the layer (Xα) and the layer (Xβ), on the prescribed cross section (P1) of the pressure sensitive adhesive sheet, in a range of 250 μm in a horizontal direction freely-selected, a difference between a maximum value and a minimum value of the layer (Xα) being 3.00 μm or more, and a difference between a maximum value and a minimum value of the layer (Y1) being 5.00 μm or more.

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：US20170174946A1

公开(公告)日：2017-06-22

申请号：US15300119

申请日：2015-04-02

Applicant: LINTEC CORPORATION

Inventor： Kazue UEMURA ,  Kiichiro KATO ,  Yumiko Amino ,  Shigeru SAITO ,  Masaru MATSUSHIMA

IPC: C09J7/02 ,  B05D5/00 ,  B05D3/10 ,  C09J11/04 ,  B05D1/36

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: Provided is a pressure sensitive adhesive sheet containing a resin layer on a substrate or a release material, 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, when a smooth surface of a light transmissive adherend having a smooth surface is attached to the surface (α), one or more concave portion (G) not kept in contact with the smooth surface exist on the surface (α), and the shapes of the one or more concave portions (G) have irregular shapes. The pressure sensitive adhesive sheet has excellent air escape property capable of readily removing air accumulation that may be formed on attaching to an adherend, and has good pressure sensitive adhesion characteristics.

公开(公告)号：US20230090587A1

公开(公告)日：2023-03-23

申请号：US17792615

申请日：2021-01-15

Applicant: LINTEC CORPORATION

Inventor： Yasutaka WATANABE ,  Yasunori KARASAWA ,  Kazue UEMURA

IPC: C08L79/08 ,  C09D179/08

Abstract: A resin sheet is made using a resin composition containing a thermosetting component (A) and a thermally conductive filler (C). The thermosetting component (A) contains a maleimide resin. A thermal diffusion rate of the thermally cured resin sheet is 1.0×10−6 m2/s or more. When a cross section (P) of the resin sheet taken by cutting the resin sheet in a vertical direction to a surface of the resin sheet is observed in an area (P1), a condition represented by a numerical formula (F1) below is satisfied, the area (P1) being defined by a square whose sides are four times as large as a thickness of the resin sheet and including two surfaces of the resin sheet, 0.25≤Ld/Lt≤1  (F1) where Ld is a vertical length of a filler particle having a largest cross-sectional diameter in the vertical direction of the thermally conductive filler (C), and Lt is a length of the resin sheet.

公开(公告)号：US20230064310A1

公开(公告)日：2023-03-02

申请号：US17792575

申请日：2021-01-15

Applicant: LINTEC CORPORATION

Inventor： Yasutaka WATANABE ,  Yasunori KARASAWA ,  Kazue UEMURA ,  Yasuhiko KAKIUCHI

IPC: C08L79/08

Abstract: A resin sheet is made using a resin composition containing a thermosetting component (A). The thermosetting component (A) contains a maleimide resin. A thermal diffusion rate of the thermally cured resin sheet is 1.0 × 10-6 m2/s or more. The resin sheet has a thickness in a range from 5 µm to 120 µm .

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%.