Method for forming thermoformable polyurethane foam articles

Details Method for forming thermoformable polyurethane foam articles Method for forming thermoformable polyurethane foam articles

C - Chemistry, Metallurgy

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C08L 75/00 (2006.01) B29B 11/06 (2006.01) B32B 3/26 (2006.01) B32B 5/18 (2006.01) C08F 283/06 (2006.01) C08G 18/63 (2006.01) C08J 9/02 (2006.01)

Patent

CA 1298031

METHOD FOR FORMING THERMOFORMABLE POLYURETHANE FOAM ARTICLES ABSTRACT A method for manufacturing a molded polyurethane article from a polyurethane foam forming composition, wherein the composition includes a polyol, an organic isocyanate compound and water, with the polyol being a polymer dispersion formed by free radical initiated polymerization of an ethylenically unsaturated monomer mixture having between 51 and 99 weight percent of an acrylic monomer with a polyoxyalkylene polyether polyol, wherein the monomer mixture represents between about 25 to 75 weight percent of the dispersion. After the foam is formed from the foam forming composition, it is molded under heat and pressure to form a molded polyurethane article.

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