POROUS MATERIALS WITH SUPERIOR REVERSIBLE WATER UPTAKE

摘要

The present invention relates to a process for preparing a porous material, at least comprising the steps of providing a mixture (I) comprising a composition (A) comprising components suitable to form an organic gel and a solvent (B), reacting the components in the composition (A) in the presence of the solvent (B) to form a gel, and drying of the gel obtained in step b), wherein the composition (A) comprises at least one compound (af) comprising phosphorous and at least one functional group which is reactive towards isocyanates and at least one component (au) selected from the group consisting of urea, biuret, and derivatives of urea and biuret. The invention further relates to the porous materials which can be obtained in this way and the use of the porous materials as thermal insulation material and in vacuum panels, as well as drying agent for gases, such as air, in filter systems, in adsorption heat pumps, as insulation material in damp and wet rooms, or to avoid mold formation.