OORGANISKT SKUMMATERIAL OCH SETT FOR DESS FRAMSTELLNING

摘要

A process for the production of a rigid foam of vermiculite having a cellular structure composed of lamellae, the process comprises producing a suspension of the vermiculite lamellae in a liquid medium, gasifying the suspension to form a froth and removing the liquid from the froth by evaporation. The rigid foam is a useful heat resistant and heat-insulating material.