|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F16L-059/065 F16L-059/06 B32B-001/06 B32B-001/00|
|§371/§102 date||20081103 (20081103)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 5|
A vacuum heat insulator has a core formed of a glass fiber laminated body where glass fibers are laminated in the thickness direction, and an enveloping member that covers the core and has gas barrier property. The inside of the enveloping member is evacuated and the enveloping member is sealed. The core is pressurized and molded and the glass fibers are drawn by heat deformation of the glass fibers at a temperature at which the glass fibers start to slightly deform due to own weight of the glass fibers or a temperature at which the glass fibers become d...
The invention claimed is: 1. A vacuum heat insulator comprising: a core formed of a laminated body where glass fibers are laminated in a thickness direction of the vacuum heat insulator, wherein the glass fibers contain an alkali content of at least 0.8% and at most 20% in weight, and the average diameter of the glass fibers is 3.5 μM; and an enveloping member covering the core and having gas barrier property, wherein the core is heat-pressed at a temperature of 480° C. for 5 minutes, such temperature being lower than the strain point of the glass ...