Foaming agents containing liquid carbon dioxide

A PROCEDURE FOR THE OBTAINING OF FOAMED PLASTICS IS DESCRIBED, USING A LIQUID COMPOSITION OF COADJUVANTS, CONTAINING PRESSURE LIQUID CARBON DIOXIDE. IN ADDITION TO PRESSURE LIQUID CARBO DIOXIDE, ALL USED LIQUID CO-ADJUVANTS, SUCH AS ALCOHOLS, ALIPHATIC OR CYCLE HYDROCARBONS, OR HALOGENATED ETHER, MAY BE USED. THE PROCEDURE IS USED IN PARTICULAR FOR THE SYNTHESIS OF FOAMED PLASTICS OF POLYETHYLENE, POLYSTYRENE OR POLYURETHANE. COMPOSITIONS OF COADJUVANTS CONTAINING PRESSURE LIQUID CARBON DIOXIDE ARE ALSO INDICATED FOR THE MANUFACTURE OF POLYURETHANE FOAMS OF ONE OR MULTIPLE COMPONENTS. IN ADDITION TO PRESSURE LIQUID CARBON DIOXIDE, ALL LIQUID USUAL CO-ADJUVANTS, SUCH AS ETHER, KETONE, ALPHATIC OR CYCLE HYDROCARBONS, OR HALOGENATED ETHER, MAY BE USED HERE. ALSO ALSO DESCRIBES A PROCEDURE FOR OBTAINING THESE COMPOSITIONS OF ADJUSTMENTS.