Insulation material

Abstract

A flexible or rigid heat-insulation material consisting of a sheet of at least one layer of closed-cell gas bubbles 1/16 inch to 1 inch in size filled with a gas selected from helium, argon, neon, krypton, xenon, carbon dioxide, and chlorodifluoromethane, and mixtures thereof. At least one heat reflective layer of aluminum film is adhesively attached to the layer of gas bubbles or an aluminum film is vapor-deposited on the layer of gas bubbles.

1 . A heat insulating material comprising a sheet of at least one layer of closed-cell gas bubbles filled with a gas selected from the group consisting of helium, argon, neon, krypton, xenon, carbon dioxide, and chlorodifluoromethane, and mixtures thereof. 
     
     
         2 . A heat insulating material as claimed in  claim 1 , in which the sheet of closed-cell gas bubbles are formed bubbles have a size in the range of 1/16 inch to one inch. 
     
     
         3 . A heat insulating material as claimed in  claim 1 , in which the sheet of closed-cell gas bubbles are formed bubbles have a size in the range of ⅛ inch to ½ inch. 
     
     
         4 . A heat insulating material as claimed in  claim 2 , additionally comprising a heat reflective layer laminated onto a surface of each layer of closed-cell gas bubbles. 
     
     
         5 . A heat insulating material as claimed in  claim 4 , in which the sheet of closed-cell gas bubbles is fabricated of 1 mil thick film of polyester, nylon embedded in polyethylene, or ethylene vinyl alcohol. 
     
     
         6 . A heat insulating material as claimed in  claim 5 , in which the heat reflective layer is a film of aluminum vapor-deposited on the sheet of closed-cell bubbles or aluminum foil adhered to the sheet of closed-cell bubbles. 
     
     
         7 . A heat insulating material as claimed in  claim 5 , in which the heat reflective layer is a film of aluminum adhered to the film of ethylene vinyl alcohol by ethylene vinyl acetate. 
     
     
         8 . A heat insulating material as claimed in  claim 1 , additionally comprising an air space formed by a film spaced from the layer of closed-cell gas bubbles. 
     
     
         9 . A heat insulating material as claimed in  claim 8 , in which the air space is a one-inch air space on three layers of closed-cell gas bubbles. 
     
     
         10 . A heat insulating material as claimed in  claim 4 , additionally comprising an air space formed by a film spaced from the layer of closed-cell gas bubbles. 
     
     
         11 . A heat insulating material as claimed in  claim 10 , in which the air space is a one-inch air space on three layers of closed-cell gas bubbles. 
     
     
         12 . A heat insulating material as claimed in  claim 1 , which further comprises a rigid layer. 
     
     
         13 . A heat insulating material as claimed in  claim 12 , in which the rigid layer is made from a material selected from the group consisting of drywall, plywood, polystyrene foam, honeycomb cardboard, or corrugated cardboard. 
     
     
         14 . A heat insulating material as claimed in  claim 4 , which further comprises a rigid layer. 
     
     
         15 . A heat insulating material as claimed in  claim 14 , in which the rigid layer is made from a material selected from the group consisting of drywall, plywood, polystyrene foam, honeycomb cardboard, or corrugated cardboard. 
     
     
         16 . A heat insulating material as claimed in  claim 8 , which further comprises a rigid layer. 
     
     
         17 . A heat insulating material as claimed in  claim 16 , in which the rigid layer is made from a material selected from the group consisting of drywall, plywood, polystyrene foam, honeycomb cardboard, or corrugated cardboard. 
     
     
         18 . A heat insulating material as claimed in  claim 9 , which further comprises a rigid layer. 
     
     
         19 . A heat insulating material as claimed in  claim 18 , in which the rigid layer is made from a material selected from the group consisting of drywall, plywood, polystyrene foam, honeycomb cardboard, or corrugated cardboard.