Samsung Electronics Co., Ltd.

Nitto-Denko Corporation

Nagahisa Sato

Kenichi Nagayama

Ryosuke Kamitani

Tomokazu Fukuzaki

Kenji Takeuchi

Masashi Echizen

Ryo Iwamuro

Yasuyuki Sakakibara

Described is an adsorbent, a vacuum heat insulating material having the same and a refrigerator, which are capable of adsorbing a target material in a reduced pressure environment. A refrigerator includes an outer casing forming an exterior, an inner casing provided inside the outer casing and forming a storage chamber and a vacuum heat insulating material positioned between the outer casing and the inner casing, and including an adsorbent that adsorbs a heat transfer medium. The adsorbent includes a first adsorption component provided to adsorb oxygen, and including a transition metal oxide having an oxygen deficiency structure, and a second adsorption component provided to adsorb moisture.

Adsorbent, vacuum heat insulating material having the same and refrigerator

Example embodiments relate to a gas-adsorbing material capable of reducing the generation amount of combustible gas without deteriorating gas-adsorbing performance, and a vacuum insulation material including the gas-adsorbing material. The gas-adsorbing material may include a metal selected from at least one of Li, V, Zr, or an alloy including the same, which adsorbs a nitrogen gas and is inactivated by moisture as a nitrogen adsorbing agent, and an additive added to the metal. The metal is attached on the particle surface of the additive. The metal may be an alloy including Li and an alkaline-earth metal, for example, Ba&#x2014;Li alloy. The additive absorbs moisture, and is selected from at least one of an inorganic oxide, a transition metal, an oxide of a transition metal, an alloy including a transition metal, and a mixture including a transition metal.

Gas-adsorbing material and vacuum insulation material including the same

A gas-adsorbing material may increase gas barrier properties for a target gas by reducing a gas-adsorption rate while maintaining gas-adsorption performance. A vacuum insulation material may use the gas-adsorbing material. The gas-adsorbing material may include a gas-adsorbing composition including a copper ion exchanged ZSM-5-type zeolite having a silica to alumina ratio ranging from about 10 to 50 in a framework of zeolite. A ratio of dealuminization of the ZSM-5-type zeolite is at least about 15%, and the gas-adsorbing material is capable of adsorbing at least nitrogen. Furthermore, the gas-adsorbing material may include a calcinated body of a compressed article comprising a gas-adsorbing composition including a copper ion exchanged ZSM-5-type zeolite having a silica to alumina ratio ranging from about 10 to 50 in a framework of zeolite (where a ratio of dealuminization of the ZSM-5-type zeolite is at least about 15%) and a moisture-absorbing material.

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Yokohama, Japan

Nagahisa Sato