Semi-flexible or flexible phenolic foam composition

Details Semi-flexible or flexible phenolic foam composition Semi-flexible or flexible phenolic foam composition

C - Chemistry, Metallurgy

08

J

403/54

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

Patent

CA 1331073

ABSTRACT OF THE DISCLOSURE A semi-flexible or flexible phenolic foam composition having a substantially open cellular structure. It comprises the reaction product of a mixture of a phenol-aldehyde resin, a surfactant, a blowing agent; optionally a wetting agent and a catalyst. Also within the scope of the present invention is a method for producing a semi-flexible or flexible phenolic foam composition having a substantially opened cellular structure. This method comprises mixing a phenol-aldehyde resin with a surfactant, a blowing agent and optionally a cell opening and wetting agent; curing the mixture by reacting it with an acid catalyst; compressing the cured or semi-cured product below its original thickness and releasing the pressure, thereby obtaining the desired semi-flexible or flexible phenolic foam composition. She semi-flexible or flexible foam thus obtained possesses excellent insulation and flame retardant properties.

605539

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