公开(公告)号：US12270502B2

公开(公告)日：2025-04-08

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 ,  D04H1/413

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 0.10 t to 0.25 t inclusive and a size of the protrusion at the surface of the thermal insulator ranges from t to 5 t 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.