초록 ▼

A thermal insulating foamed material is a polyurethane foam having closed cells, and produced by mixing, agitating and foaming a polyol, a polyisocyanate, a foam stabilizer, a catalyst, a blowing agent and a carbon dioxide adsorbent. The carbon dioxide adsorbent is produced by mixing and granulating

A thermal insulating foamed material is a polyurethane foam having closed cells, and produced by mixing, agitating and foaming a polyol, a polyisocyanate, a foam stabilizer, a catalyst, a blowing agent and a carbon dioxide adsorbent. The carbon dioxide adsorbent is produced by mixing and granulating powders of at least one member of alkali metal hydroxides and alkaline-earth metal hydroxides and organic or inorganic powders having a water absorbing property and soaked with water in advance, and formed by a resin film, such as a methacrylic acid ester, which is permeable to carbon dioxide but hardly permeable to water.

대표청구항 ▼

[ What is claimed is:] [1.] A method for manufacturing a thermal insulating foamed material comprising steps of:producing carbon dioxide adsorbents, which include at least one member of hydroxides of alkali metal and hydroxides of alkaline-earth metal and water, and coated with a coating resin film,

[ What is claimed is:] [1.] A method for manufacturing a thermal insulating foamed material comprising steps of:producing carbon dioxide adsorbents, which include at least one member of hydroxides of alkali metal and hydroxides of alkaline-earth metal and water, and coated with a coating resin film,mixing said carbon dioxide adsorbents with polyol, catalyst, foam stabilizer, water, volatile blowing agent and polyisocyanate,producing a foamed polyurethane resin composition having closed cells including carbon dioxide generated by reaction between water and polyisocyanate, and volatile blowing agent, andadsorbing said carbon dioxide in said closed cells of said foamed polyurethane resin composition by said carbon dioxide adsorbents, so as to despite carbonates and substantially fill said closed cells with said volatile blowing agent.