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US 8,785,512 B2Granted
Porous gels based on aromatic and cycloaliphatic amines
AssigneeBASF SE
InventorsMarc Fricke, Mark Elbing
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Abstract
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.
Claims20
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.
2 more elements
Dependencies are inferred from the claim text.