Method for continuous manufacture of foam boards with...

Details Method for continuous manufacture of foam boards with... Method for continuous manufacture of foam boards with...

B - Operations, Transporting

32

B

B32B 5/20 (2006.01) B29C 44/32 (2006.01) C08G 18/08 (2006.01) C08J 9/12 (2006.01)

Patent

CA 2132118

ABSTRACT A method for the manufacture of paper faced foam which comprises (a) applying a foam-forming mixture to at least one advancing cellulosic sheet or composite thereof with an air- and/or moisture-impermeable material, the cellulosic sheet (i) being impregnated with cured polyisocyanate, (ii) being sufficiently flexible for unwinding from a roll for conveyance along a production line and (iii) having a moisture content which does not exceed about 10 percent and is evenly distributed throughout the cellulosic sheet, and (b) foaming and curing the faced foam-forming mixture.

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