Definition von blowing agent im Englisch Englisch wörterbuch
an expanding agent used to produce a gas by chemical or thermal action, or both, in the manufacture of hollow or cellular materials
A substance incorporated in a mixture for the purpose of producing foam For polyurethanes, this is usually either carbon dioxide generated from the diisocyanate/water reaction or introduced as liquid CO2, or is a low boiling organic liquid volatilized by the heat of the polyurethane-forming reactions