公开(公告)号：US12247124B2

公开(公告)日：2025-03-11

申请号：US17792615

申请日：2021-01-15

Applicant: LINTEC CORPORATION

Inventor： Yasutaka Watanabe ,  Yasunori Karasawa ,  Kazue Uemura

IPC: C08L79/08 ,  C08G8/10 ,  C08G73/12 ,  C08J5/18 ,  C08K3/22 ,  C08K3/38 ,  C08K5/3492 ,  C09D179/08 ,  H01L23/29 ,  H01L23/31 ,  H05K1/03

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：US10696873B2

公开(公告)日：2020-06-30

申请号：US15763365

申请日：2016-09-27

Applicant: LINTEC CORPORATION

Inventor： Kazue Uemura ,  Kaisuke Yanagimoto ,  Kiichiro Kato

IPC: C09J9/00 ,  C09D7/45 ,  C09J201/00 ,  B32B27/26 ,  B32B5/14 ,  C09J7/38 ,  B32B27/20 ,  B32B7/12 ,  B32B27/30 ,  B32B27/10 ,  B32B27/06 ,  B32B27/08 ,  C09J11/04 ,  C09J7/25 ,  C09J7/40 ,  C09J5/00 ,  C08K3/22 ,  C08K3/36

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：US10676649B2

公开(公告)日：2020-06-09

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 ,  C09J11/02 ,  C09J7/20 ,  B32B7/06 ,  B32B27/00 ,  C09J201/00 ,  C09J7/25 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  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：US10363718B2

公开(公告)日：2019-07-30

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: C08K3/22 ,  C09J133/08 ,  B32B3/26 ,  B32B27/08 ,  B32B27/20 ,  B32B27/30 ,  B32B27/36 ,  B32B7/00 ,  B32B7/02 ,  B32B7/12 ,  B32B19/00 ,  B32B19/04 ,  B32B27/00 ,  B32B27/06 ,  B32B27/14 ,  B32B27/18 ,  B32B3/00 ,  B32B37/12 ,  C09J7/38 ,  C09J7/22 ,  C09J7/29 ,  C08K3/013

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：US10233361B2

公开(公告)日：2019-03-19

申请号：US15300152

申请日：2015-04-02

Applicant: LINTEC CORPORATION

Inventor： Kiichiro Kato ,  Kazue Uemura ,  Yumiko Amino ,  Shigeru Saito ,  Masaru Matsushima

IPC: C09J7/02 ,  C09J11/04 ,  B05D5/00 ,  C09J7/38 ,  C09J201/00 ,  C09J133/08 ,  B05D1/36 ,  B05D3/10 ,  C08K3/34 ,  C09J5/00 ,  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 containing, on a substrate or a release material, a resin layer, 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 surface (α) having one or more concave portions, the concave portions having irregular shapes. The pressure sensitive adhesive sheet has an excellent air escape property capable of easily removing air accumulation that may be formed on attaching to an adherend, and is excellent in pressure sensitive adhesion characteristics.