公开(公告)号：US10042092B2

公开(公告)日：2018-08-07

申请号：US15642902

申请日：2017-07-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tooru Wada ,  Shigeaki Sakatani

IPC: H05K1/00 ,  H05K1/18 ,  H05K7/00 ,  G02B5/02 ,  C01B33/143 ,  C01B33/154 ,  C01B33/16 ,  D06M11/79 ,  H05K1/02 ,  B32B5/02 ,  B32B5/22 ,  C01B33/152 ,  C01B33/158 ,  C01B33/159

Abstract: A heat-insulation material does not cause deterioration in heat-insulation performance and any loss of components included therein, and possesses an excellent radiation-preventing function. The heat-insulation material includes: a first heat-insulation layer that includes a first silica xerogel and a first radiation-preventing material; and a third heat-insulation layer that includes a third silica xerogel and second fibers, wherein the first heat-insulation layer and the third heat-insulation layer are layered. An electronic device includes the heat-insulation material. Yet further disclosed is a method for producing the heat-insulation material.

公开(公告)号：US12195911B2

公开(公告)日：2025-01-14

申请号：US16877046

申请日：2020-05-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuma Oikawa ,  Tooru Wada ,  Shigeki Sakaguchi ,  Takashi Kubo ,  Takashi Tsuruta ,  Shigeaki Sakatani ,  Daido Komyoji

IPC: H01M10/658 ,  D06M11/79 ,  H01M10/0525 ,  C01B33/158

Abstract: A manufacturing method of a heat insulating sheet of the present disclosure includes a composite generating step of impregnating a nonwoven fiber with a basic sol prepared to generate a composite of a hydrogel-nonwoven fiber, the basic sol being prepared by adding carbonate ester to a water glass composition; and a drying step of drying a liquid contained in the composite at a temperature lower than a critical temperature of the liquid and a pressure lower than a critical pressure of the liquid to remove the liquid from the composite. A heat insulating sheet according to the present disclosure includes an aerogel and a nonwoven fiber, and has a compression rate at 0.30 MPa to 5.0 MPa of 40% or less. In an electronic device of the present disclosure, the heat insulating sheet is disposed between an electronic component and a housing. In a battery unit of the present disclosure, the heat insulating sheet is disposed between batteries. This provides a heat insulating sheet that can be used under a high load and a manufacturing method thereof, and an electronic device and a battery unit including the same.

公开(公告)号：US11293583B2

公开(公告)日：2022-04-05

申请号：US15897037

申请日：2018-02-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Daido Kohmyohji ,  Kazuma Oikawa ,  Takashi Tsuruta ,  Tooru Wada ,  Shigeaki Sakatani ,  Hidenori Miyakawa

IPC: F16L59/02 ,  B32B9/04 ,  B32B17/02 ,  F16L59/10 ,  F16L59/06

Abstract: Heat-insulation materials that can be placed along the lines of heat sources, heat-insulation structures using the same, and processes for producing the same. A heat-insulation material, that includes: fiber sheets that each have fibers and an aerogel and that have different sizes; and at least one covering material that covers the fiber sheets, or at least one elastic material that includes the fiber sheets. The at least one covering material may include a first covering material and a second covering material.

公开(公告)号：US11905647B2

公开(公告)日：2024-02-20

申请号：US17190279

申请日：2021-03-02

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuma Oikawa ,  Tooru Wada ,  Shinji Okada ,  Shigeaki Sakatani ,  Rikako Shono

IPC: D06M11/79 ,  D06M13/228 ,  D06M15/643 ,  D06M13/232 ,  C03C25/40 ,  D06M13/513 ,  C03C25/1095 ,  H01M10/65 ,  D06M11/77

CPC classification number: D06M11/79 ,  C03C25/1095 ,  C03C25/40 ,  D06M13/228 ,  D06M13/232 ,  D06M13/513 ,  D06M15/643 ,  H01M10/65 ,  D06M11/77 ,  D06M2200/30 ,  D06M2400/02

Abstract: Used is a method for producing a thermal insulation sheet, including: composite-forming including impregnating a nonwoven fabric with a basic sol prepared by adding a carbonate ester to a water glass composition to form a hydrogel-nonwoven fabric composite; surface-modifying including mixing the composite with a silylating agent for surface modification; and drying including removing liquid contained in the composite through drying at a temperature lower than the critical temperature of the liquid under a pressure lower than the critical pressure of the liquid. Used is a thermal insulation sheet including an aerogel and a nonwoven fabric, where the thermal insulation sheet exhibits a compressibility of 40% or lower at 0.30 to 5.0 MPa.

公开(公告)号：US11015286B2

公开(公告)日：2021-05-25

申请号：US16206809

申请日：2018-11-30

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuma Oikawa ,  Tooru Wada ,  Shinji Okada ,  Shigeaki Sakatani ,  Rikako Shono

IPC: D06M11/79 ,  C03C25/1095 ,  C03C25/40 ,  D06M13/228 ,  D06M13/513 ,  D06M15/643 ,  D06M13/232 ,  D06M11/77

Abstract: Used is a method for producing a thermal insulation sheet, including: composite-forming including impregnating a nonwoven fabric with a basic sol prepared by adding a carbonate ester to a water glass composition to form a hydrogel-nonwoven fabric composite; surface-modifying including mixing the composite with a silylating agent for surface modification; and drying including removing liquid contained in the composite through drying at a temperature lower than the critical temperature of the liquid under a pressure lower than the critical pressure of the liquid. Used is a thermal insulation sheet including an aerogel and a nonwoven fabric, where the thermal insulation sheet exhibits a compressibility of 40% or lower at 0.30 to 5.0 MPa.