Agc Inc.

Asahi Glass Company, Limited

Yuya Hamada

Nobuhiro Shinohara

Yusaku Matsuo

Hiroyuki Hijiya

Hironori Sato

Yutaka Kuroiwa

Tomoharu Hayashi

An alkali-free glass includes, as represented by mol % based on oxides: 50 to 80% of SiO; 2 to 6% of AlO; 18 to 35% of BO; 1 to 6% of MgO; 0 to 6% of CaO; 0 to 6% of SrO; and 0 to 3% of BaO. A formula (A) is [MgO]+[CaO]+[SrO]+[BaO], and a value of the formula (A) is 2% or more and 6% or less. A formula (B) is [AlO]—([MgO]+[CaO]+[SrO]+[BaO]), and a value of the formula (B) is −3% or more and 2% or less.

Alkali-free glass and glass plate

To provide an insulating member with which a high insulating effect is stably obtained, and a method for attaching it. An insulating membercomprising a vacuum insulation panelin a board-like shape and an elastic bodyA, wherein the vacuum insulation panelhas a core material and a gas barrier film covering the core material, the core material is decompressed and encapsulated in an outer sheath formed of the gas barrier film, the elastic bodyA has a degree of elongation of at least 10%, an Asker F hardness of at least 10 and an Asker C hardness of at most 30, and the elastic bodyA is provided on the entire surface of an application surfaceof the vacuum insulation panel

Insulating member and its attaching method

Growing community of inventors

Chiyoda-ku, Japan

Yuya Hamada