|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 7 인용 특허 : 5|
A vacuum thermal insulating material of the present invention and a thermally insulating case using the vacuum thermal insulating material are used as thermal insulation in, for example, refrigerators and freezers. The vacuum thermal insulating material has a core material including two or more different powders and an adsorbent. The vacuum thermal insulating material of the present invention has excellent performance of thermal insulation and is light in weight and manufactured at a low cost. The thermally insulating case of the present invention enable...
[ What is claimed is:] [1.] A vacuum thermal insulating material comprising a core material and an adsorbent, which are packed in an outer member, said core material comprising at least a powder of organic material which has a specific surface area of not greater than 20 m.sup.2 /g, and a powder of inorganic material which has a specific surface area of greater than 50 m.sup.2 /g.