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.