Patent ID: 9404684
Filing Date: 2016-08-02
CPC Classification: B32B,F25D,Y10T

Claim Text:
1. A vacuum insulation panel comprising: a core material; a first sheathing material disposed outside the core material; and a second sheathing material having different thermal conductivity from the first sheathing material, the second sheathing material being coupled to the first sheathing material to form a receiving space to receive the core material, wherein the first sheathing material includes a fusion layer and a plurality of blocking layers stacked outside the fusion layer, wherein each of the plurality of the blocking layers includes a base layer and a deposition layer provided on the base layer to block gas and moisture introduced into the core material, a first blocking layer, of the plurality of blocking layers, facing the fusion layer includes a first base layer to surround the fusion layer and a first deposition layer located outside the first base layer, and a second blocking layer, of the plurality of blocking layers, facing the first blocking layer includes a second deposition layer contacting the first deposition layer and a second base layer located outside the second deposition layer.