Foamed polyester resin

Details Foamed polyester resin Foamed polyester resin

C - Chemistry, Metallurgy

08

L

403/57, 18/644

C08L 67/00 (2006.01) C08J 9/00 (2006.01) C08J 9/08 (2006.01)

Patent

CA 1100696

FOAMED POLYESTER RESIN Abstract of the Disclosure A method of preparing lightweight molded objects having high structural strength and uniform closed cell structure comprises forming a uniform mixture of a liquid general purpose polyester resin, an inorganic filler or a mixture thereof, bicarbonate of soda, sodium acetate, aluminum ammonium sulfate, ferrous ammonium sulfate and tannic acid and a catalyst mixture containing a peroxide catalyst for the polyester resin, an acidic substance to release the carbon dioxide gas from the bicarbonate of soda and water. The resin mixture and the catalyst mixture are uniformly blended and applied to the mold or cavity and the foamed polyester allowed to form.

287555

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