Process for making isocyanate-based xerogels and aerogels with mineral acids

摘要

The present invention is a method for producing a porous material, the step of preparing a mixture (I), wherein the mixture (I) is a composition (A) as a component (ai) A process comprising at least one polyfunctional isocyanate and at least one mineral acid (aa) and comprising a composition (A) and a solvent (B), and reacting the components in the composition (A) And a method comprising at least a step of obtaining an organic gel and a step of drying the obtained gel. The invention further relates to a porous material that can be obtained in this way and to a method of using the porous material as a thermal insulation material and as a catalyst.