US 12,233,493 B2
Heat transfer sheet, method for producing heat transfer sheet, heat transfer sheet package, and method for producing heat transfer sheet package
Keisuke Mukasa, Shimotsuke (JP); Yusuke Kubo, Shimotsuke (JP); and Keisuke Aramaki, Shimotsuke (JP)
Assigned to Dexerials Corporation, Shimotsuke (JP)
Appl. No. 18/276,497
Filed by DEXERIALS CORPORATION, Shimotsuke (JP)
PCT Filed Feb. 3, 2022, PCT No. PCT/JP2022/004193
§ 371(c)(1), (2) Date Aug. 9, 2023,
PCT Pub. No. WO2022/176628, PCT Pub. Date Aug. 25, 2022.
Claims priority of application No. 2021-023426 (JP), filed on Feb. 17, 2021.
Prior Publication US 2024/0116146 A1, Apr. 11, 2024
Int. Cl. B23P 15/26 (2006.01); B29C 43/00 (2006.01); B29C 43/56 (2006.01); F28F 3/00 (2006.01)
CPC B23P 15/26 (2013.01) [B29C 43/003 (2013.01); B29C 43/56 (2013.01); F28F 3/00 (2013.01); B29C 2043/561 (2013.01); F28F 2255/06 (2013.01); F28F 2255/14 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for producing a heat transfer sheet, the method comprising:
(A1) forming a mixture comprising at least one of a carbon fiber and a boron nitride flake, an inorganic filler, and a binder resin into a molded body in which the at least one of the carbon fiber and the boron nitride flake is oriented in a thickness direction of the molded body;
(B1) slicing the molded body into a sheet shape to obtain a molded sheet;
(C1) pressing the molded sheet; and
(D1), after the pressing, inserting the molded sheet between films and performing a vacuum packing of the molded sheet with the films such that the molded sheet is under a vacuum-packed state and an uncured component of the binder resin present inside the molded sheet is exuded to a surface of the molded sheet, which is the heat transfer sheet.