Foam insulation board faced with polymer-fibrous sheet...

Details Foam insulation board faced with polymer-fibrous sheet... Foam insulation board faced with polymer-fibrous sheet...

B - Operations, Transporting

29

C

154/123.1, 154/9

B29C 67/20 (2006.01) B32B 5/20 (2006.01) B32B 27/10 (2006.01) B32B 31/00 (1985.01)

Patent

CA 1273279

ABSTRACT A thermally insulating structural laminate com- prising a core of rigid plastic foam having two major surfaces, at least one of the major surfaces of the foam being attached to a facer comprising a fibrous sheet having at least one layer of an air-and moisture-imper- vious polymer disposed on the inner surface thereof and interposed between the fibrous sheet and the foam, the oxygen transmission of the polymer being a value of less than about 1 cc/100 in2-24 hrs-atm sufficient to make the facer substantially impervious to air and water vapor.

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