公开(公告)号：US20230131701A1

公开(公告)日：2023-04-27

申请号：US17759895

申请日：2021-01-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tomoaki Uchiya ,  Guanqiao Li

IPC: C09J7/35 ,  C08K7/18 ,  B32B27/36 ,  B32B5/02 ,  B32B7/12 ,  B32B27/12 ,  B32B27/10

Abstract: An adhesive sheet is a thermally expandable and thermosetting adhesive sheet including a substrate and a first layer provided on at least one surface of the substrate. The first layer contains an adhesive portion having an adhesive composition and thermally expandable first particles contained within the adhesive composition, and second particles provided in the adhesive portion and having different materials from those of the first particles, and each of the second particles is larger than each of the first particles.

公开(公告)号：US20220020663A1

公开(公告)日：2022-01-20

申请号：US17311458

申请日：2019-12-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tomoaki Uchiya ,  Naoyuki Toriumi ,  Eisuke Yamaguchi ,  Guanqiao Li

IPC: H01L23/373 ,  H05K7/20 ,  H01L23/29 ,  H01L23/42 ,  B29C39/10 ,  B32B27/08

Abstract: The production method for a thermally conductive molding includes: preparing a first film that is disposed on a mold having a three-dimensional shape so as to conform to the three-dimensional shape, and that has a first layer and a second layer that is releasably adhered to the first layer on a surface opposite to the mold of the first layer; disposing a curable composition including a thermally conductive material and a (meth)acrylic monomer on the first film; disposing a second film on the curable composition and sandwiching the curable composition between the first film and the second film; radically polymerizing the (meth)acrylic monomer in the curable composition to form a cured product of the curable composition between the first film and the second film; and releasing the first layer from the second layer to obtain a thermally conductive molding including the second layer, the cured product, and the second film.

公开(公告)号：US20210024790A1

公开(公告)日：2021-01-28

申请号：US16967297

申请日：2019-02-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kenji Wakamatsu ,  Tomoaki Uchiya

IPC: C09J133/08

Abstract: A resin composition, including a radical-polymerizable compound, a cation-polymerizable compound, a photo radical photopolymerization initiator, and a photo cation photopolymerization initiator; wherein the resin composition has a range of wavelengths so that one of the photo radical photopolymerization initiator and the photo cation photopolymerization initiator has a molar absorption coefficient of 1 or greater, and the other has a molar absorption coefficient of 0.1 or less. A gap-filling adhesive which is a partially polymerized product of the resin composition. The gap-filling adhesive is capable of easily filling the gap in the body to be adhered.

公开(公告)号：US20230236286A1

公开(公告)日：2023-07-27

申请号：US17918961

申请日：2021-03-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Masataka Shinagawa ,  Tomoaki Uchiya ,  Koji Hishitani ,  Naoyuki Toriumi ,  Masaaki Takeda

IPC: G01S7/03 ,  B32B5/32 ,  B32B5/18 ,  B32B7/02 ,  G01S7/02 ,  B62D29/00

CPC classification number: G01S7/038 ,  B32B5/32 ,  B32B5/18 ,  B32B7/02 ,  G01S7/027 ,  B62D29/00 ,  B32B2255/102 ,  B32B2255/26 ,  B32B2307/7376 ,  B32B2307/72 ,  B32B2307/212 ,  B32B2605/00 ,  B32B2266/025 ,  B32B2266/0242

Abstract: A radio wave reflection reducing sheet provided with a laminate having a first primary surface and a second primary surface is disclosed. The laminate has: a first resin foam layer having a thickness from 0.05 to 3.00 mm and a density from 0.10 to 0.85 g/cm3, and a second resin foam layer having a thickness from 0.05 to 3.00 mm and a density from 0.20 to 0.90 g/cm3. The density of the second resin foam layer is greater than the density of the first resin foam layer. The first resin foam layer and the second resin foam layer are disposed in this order from the first primary surface side.

公开(公告)号：US20190329455A1

公开(公告)日：2019-10-31

申请号：US16345951

申请日：2017-10-31

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tomoaki Uchiya ,  Ryo Sakaguchi ,  Tadahiro Takashina ,  Masaru Nezu ,  Takashi Takenouchi

IPC: B29B11/06 ,  B32B37/15 ,  B32B27/08 ,  B32B27/36 ,  B29C39/10 ,  B29C39/02 ,  H01L23/367 ,  H01L23/373 ,  F28F3/04

Abstract: Provided is a three-dimensionally shaped thermally conductive molded body and manufacturing method thereof, that can ensure sufficient gap filling properties and contact surface area with regard to heat dissipating components such as heat sinks and the like and heat generating components such as IC chips and the like, without adding excessive stress to these components. The three-dimensionally shaped thermally conductive molded body of a first aspect of the present disclosure contains a thermally conductive material and a silicone-based material, the molded body has a substantially flat bottom surface, and a three-dimensional shaped part located on the inside of the bottom surface, and the height of the three-dimensionally shaped part that is higher than the bottom surface differs in at least two locations.

公开(公告)号：US20240309245A1

公开(公告)日：2024-09-19

申请号：US18572332

申请日：2022-06-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Guanqiao LI ,  Tomoaki Uchiya

IPC: C09J7/35 ,  C09J163/00

CPC classification number: C09J7/35 ,  C09J163/00 ,  C09J2301/1242 ,  C09J2301/304 ,  C09J2301/312 ,  C09J2301/50 ,  C09J2400/24 ,  C09J2463/00 ,  C09J2467/006

Abstract: An adhesive sheet can ensure favorable ease of insertion even when inserted and used into a narrow space, and can also favorably exhibit various characteristics during or after heating. An adhesive sheet includes a first adhesive layer formed of an adhesive composition containing an epoxy resin having a softening point of 50° C. or higher and a thermal curing agent; and a second adhesive layer that has tackiness and is foamed and cured by heat. An outermost layer of the adhesive sheet is formed of the first adhesive layer, and the adhesive sheet has a plurality of convex structures on a surface on a side of the outermost layer.

公开(公告)号：US20220259465A1

公开(公告)日：2022-08-18

申请号：US17597737

申请日：2020-08-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alexander J. Kugel ,  Mario A. Perez ,  Sebastian Goris ,  Matthew H. Frey ,  Ross E. Behling ,  Mark E. Napierala ,  Thomas Q. Chastek ,  Jacob D. Young ,  Shaun M. West ,  Tomoaki Uchiya

IPC: C09J9/00 ,  C09J5/06 ,  C09J11/04 ,  C09J133/14 ,  C09J133/06 ,  C09J153/00 ,  C09K5/14 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  B29C64/118 ,  B29C64/314 ,  D01F8/10 ,  D01F1/10

Abstract: A core-sheath filament having a) a core that is a thermally conductive pressure-sensitive adhesive particles and b) a non-tacky, thermoplastic sheath is provided. The thermally conductive pressure-sensitive adhesive in the core includes a (meth)acrylate-based polymeric material and thermally conductive particles. Additionally, methods of making the core-sheath filament and methods of using the core-sheath filament to print a thermally conductive pressure-sensitive adhesive are described.