Porous gels based on aromatic and cycloaliphatic amines

摘要

The invention relates to a porous gel comprising the following components, in reacted form:
(a1) at least one polyfunctional isocyanate,(a2) at least one polyfunctional aromatic amine and(a3) at least one polyfunctional cycloaliphatic amine.;The invention further relates to a process for preparing porous gels, to the porous gels thus obtainable and to the use of the porous gels as an insulating material and in vacuum insulation panels.

主权项

1. A porous gel, comprising:
a polyfunctional isocyanate, a polyfunctional aromatic amine, and a polyfunctional cycloaliphatic amine, wherein the porous gel has a porosity of at least 70% by volume, and the polyfunctional isocyanate, the polyfunctional aromatic amine, and the polyfunctional cycloaliphatic amine are present as polymeric or polymer-bound components.