초록 ▼

A plate like insulation unit which includes an evacuated bag having two gas impermeable films sealed at peripheries thereof to form the bag and a heat insulating core material charged into the bag. The one gas impermeable film of the bag is a first film having a first metallic foil laminated to exte

A plate like insulation unit which includes an evacuated bag having two gas impermeable films sealed at peripheries thereof to form the bag and a heat insulating core material charged into the bag. The one gas impermeable film of the bag is a first film having a first metallic foil laminated to extend to the peripheries thereof, and the other gas permeable film is a second film having a metallic layer vapor deposited.

대표청구항 ▼

A plate like insulation unit which includes an evacuated bag having two gas impermeable films sealed at peripheries thereof to form the bag and a heat insulating core material charged into the bag, the improvement wherein one said gas impermeable film is a first film comprising a metallic foil lamin

A plate like insulation unit which includes an evacuated bag having two gas impermeable films sealed at peripheries thereof to form the bag and a heat insulating core material charged into the bag, the improvement wherein one said gas impermeable film is a first film comprising a metallic foil laminated to a plastic layer to extend to the peripheries of the plastic layer, and wherein the other gas impermeable film is a second film comprising a metallic layer vapor deposited on a plastic layer, said vapor deposited metallic layer in the second film being thinner than the metallic foil in the first film.