Non-cfc foam produced using perfluoroalkanes

Details Non-cfc foam produced using perfluoroalkanes Non-cfc foam produced using perfluoroalkanes

C - Chemistry, Metallurgy

08

J

C08J 9/00 (2006.01) C08J 9/14 (2006.01) C08L 61/06 (2006.01)

Patent

CA 2191615

This invention relates to the production of low density resole foams from resole resins. The foams have a density of 2.0 pounds per cubic foot (32.037 kg/m3) or less and are produced with a blowing agent consisting of a HCFC or a HFC and a perfluoroalkane, wherein the perfluoroalkane comprises 1 to 5 weight percent of total blowing agent weight, and wherein the HCFC or HFC has a boiling point of below 0°C.

L'invention porte sur la production de mousses de résol à basse densité à partir de résines de résol. Lesdites mousses, d'une densité de 2,0 livres par pied cubique (32,037 kg/m<3>) ou moins, sont obtenues à l'aide d'un agent porogène à bas point d'ébullition tel que le HCFC ou le perfluoroalkane.

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