Vacuum thermal insulator and thermal insulation container

• Main Authors: Mukaiyama, Takayoshi, Fujimori, Yosuke, Fujimura, Kazumasa, Masuda, Yasushi, Abiko, Shohei, Inuzuka, Takayuki, Takai, Hiroaki
• Format: Patent
• Language: English
• Published: 21.02.2019
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

This vacuum heat insulation material is provided with a core material holding a vacuum space, an adsorbent that adsorbs moisture, and an outer packaging material that covers the core material and the adsorbent; and the inside of the outer packaging material is depressurized and hermetically sealed. The outer packaging material is composed of a surface protective layer, a gas barrier layer and a thermal fusion layer. The outer packaging material has a sealed part obtained by thermally fusing thermal fusion layers with each other in the peripheral portion of the outer packaging material. The thermal fusion layer has a thickness from 35 μm to 70 μm (inclusive). The adsorbent contains calcium oxide having a moisture absorption rate of from 15 wt%/h to 32 wt%/h (inclusive).