Rigid polyurethane foams prepared from polyvinyl...

Details Rigid polyurethane foams prepared from polyvinyl... Rigid polyurethane foams prepared from polyvinyl...

C - Chemistry, Metallurgy

08

G

403/14, 403/40

C08G 18/04 (2006.01) C08G 18/06 (2006.01) C08G 18/28 (2006.01) C08G 18/42 (2006.01)

Patent

CA 2023034

RIGID POLYURETHANE FOAMS PREPARED FROM POLYVINYL ACETATE/ALLYL ALCOHOL POLYOLS, AND PROCESS FOR MAKING SAME Abstract of the Disclosure Polyurethane systems are disclosed utilizing poly- vinyl acetate/allyl alcohol random copolymers to produce rigid polyurethane foams and a process for producing the same. The resulting foams exhibit improved K-factors, util- ized reduced amounts of fluorocarbons as blowing agents, and maintained insulating properties when formulated with increased amounts of water. -40-

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