Process for production of foamed resin structure

摘要

In manufacturing a foamed structure from an unsaturated polyester resin, a diallyl phthalate resin and a curable 1,2-polybutadiene resin, foaming of the resin is carried out with the reaction of acid esters of phosphoric acid and/or acid esters of phosphorous acid with metal carbonates and/or metal bicarbonates.