Low thermal conductivity gas-filled thermal insulation material

摘要

A low thermal conductivity gas-filled thermal insulation material, having a double-walled structure with a thermal insulation space layer (3) filled with a low thermal conductivity gas having a thermal conductivity less than that of air provided between an inner wall (2) and an outer wall (1), wherein the thickness of the thermal insulation space layer is set to be such that the inner wall and the outer wall are capable of achieving contact when a space between the inner wall and the outer wall is made vacuum and an outside of the outer wall is held at atmospheric pressure, within a range of elastic deformation allowing return to an original position. This low thermal conductivity gas-filled thermal insulation material can be economically produced, is compact and lightweight, and is suitable for use with containers having unusual non-cylindrical designs.