초록 ▼

Double faced rigid polyurethane foam insulating board in which the first facing is adhered directly to the urethane foam and in which a second facing is intermittently adhered to and spaced from the first facing by areas of adhesive spaced so as to allow unrestricted lateral venting of gases from be

Double faced rigid polyurethane foam insulating board in which the first facing is adhered directly to the urethane foam and in which a second facing is intermittently adhered to and spaced from the first facing by areas of adhesive spaced so as to allow unrestricted lateral venting of gases from between the facings to the edges of the board.

대표청구항 ▼

Thermal insulating board comprising: (a) a rigid closed cell foam core, the cells of which contain fluorocarbon gas; (b) a first continuous facing continuously adhered to a face of said core, said first facing being non-porous; and (c) a second continuous facing intermittently adhered to and spaced

Thermal insulating board comprising: (a) a rigid closed cell foam core, the cells of which contain fluorocarbon gas; (b) a first continuous facing continuously adhered to a face of said core, said first facing being non-porous; and (c) a second continuous facing intermittently adhered to and spaced from said first facing by areas of water resistant adhesive, said second facing being non-absorbent and said areas of adhesive being spaced so as to allow unrestricted lateral venting of gases from between the facings to the edges of the board.