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.