公开(公告)号：US20210115622A1

公开(公告)日：2021-04-22

申请号：US17257680

申请日：2019-10-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAHIRO YOSHII ,  RIKAKO IWASAKI

IPC: D06M11/79 ,  C01B33/16 ,  B32B5/26 ,  B32B7/05 ,  B32B7/027

Abstract: Fiber sheets each including internal pores therein are prepared. A fibrous body including the fiber sheets is formed by stacking the fiber sheets and joining the fiber sheets to each other at joining regions. Silica xerogel is put into the internal pores of each of the fiber sheets of the fibrous body by impregnation. The put silica xerogel is hydrophobized while a space is formed between the fiber sheets in a non-joining region between the joining regions of the fibrous body. This method provides a heat-insulating device resistant to a force in surface directions and having a predetermined thickness.

公开(公告)号：US20210370636A1

公开(公告)日：2021-12-02

申请号：US17241828

申请日：2021-04-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKASHI TSURUTA ,  RIKAKO IWASAKI

IPC: B32B5/18 ,  B32B5/24 ,  C01B33/158

Abstract: An aerogel structure body includes a composite layer containing fibrous materials and aerogel, the aerogel being held between the fibrous materials, and an aerogel layer having a first surface on at least one surface of the composite layer and formed of the aerogel, in which the aerogel layer having a second surface opposite to the first surface, the second surface including a projection portion projecting from the second surface, and a density of the aerogel in the projection portion is 0.1% to 3.0% higher than a density of the aerogel in the aerogel layer (flat portion) other than the projection portion. Therefore, the aerogel structure body that is excellent in dimensional stability and heat insulating properties and that can be manufactured with high productivity and a method of manufacturing the same are provided.

公开(公告)号：US20220065385A1

公开(公告)日：2022-03-03

申请号：US17418294

申请日：2019-10-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KUNXIAN CAO ,  RIKAKO IWASAKI

IPC: F16L59/02

Abstract: A heat-insulating sheet includes a fiber sheet having spaces therein and silica xerogel held in the spaces. The heat-insulating sheet includes a high-compressive region and a low-compressive region. A compression rate of the high-compressive region of the heat-insulating sheet with respect to a pressure of 0.25 MPa applied to the high-compressive region is greater than or equal to 30% and less than or equal to 50%. A compression rate of the low-compressive region of the heat-insulating sheet with respect to a pressure of 0.25 MPa applied to the low-compressive region is greater than or equal to 1% and less than or equal to 5%. This heat-insulating sheet has large thermal insulation as a whole.

公开(公告)号：US20210062955A1

公开(公告)日：2021-03-04

申请号：US16960012

申请日：2019-03-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUJI YAMAGISHI ,  RYOSUKE USUI ,  YUUICHI ABE ,  SHUN AOTA ,  RIKAKO IWASAKI

IPC: F16L59/02 ,  C01B33/16

Abstract: Provided is a thermal insulator which can be prevented from having gaps. The thermal insulator includes a nonwoven fabric, and xerogel in interior spaces of the nonwoven fabric. The thermal insulator has a plurality of protrusions on a surface of the thermal insulator, a height of the protrusion ranges from 0.10t to 0.25t inclusive and a size of the protrusion at the surface of the thermal insulator ranges from t to 5t inclusive, where t is a thickness of the thermal insulator, and pores are provided inside the thermal insulator in a region provided with the protrusions.