Patent ID: 9151435
Filing Date: 2015-10-06
Classification: B32B,E04B,F16L,F25D,Y02A,Y02B,Y10T

Abstract:
1. A vacuum insulation material comprising: an inner bag made of an air-permeable film and compressing and packing a surface of a core material; a cover material disposed on the inner bag through vacuum packing; and a getter inserted between the inner bag and the cover material, wherein the core material includes a glass wool, wherein the inner bag is an air-permeable film formed of at least one of polypropylene (PP), polyester (PET) and polyethylene (PE), and comprising fine holes, wherein the fine holes having a diameter of 0.1˜10 μm, and the fine holes of the air-permeable film occupy 30˜90% of an overall surface area of the air-permeable film.