The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2016
Filed:
Mar. 12, 2010
Marc Fricke, Osnabrück, DE;
Volker Schädler, Ann Arbor, MI (US);
Thomas Breiner, Laudenbach, DE;
Antoni Sánchez-ferrer, Zürich, CH;
Francois-xavier Simon, Levallois-Perret, FR;
Daniel Schmidt, Tewksbury, MA (US);
Marc Fricke, Osnabrück, DE;
Volker Schädler, Ann Arbor, MI (US);
Thomas Breiner, Laudenbach, DE;
Antoni Sánchez-Ferrer, Zürich, CH;
Francois-Xavier Simon, Levallois-Perret, FR;
Daniel Schmidt, Tewksbury, MA (US);
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to a process for producing xerogel composites, which comprises: (a) provision of a composition comprising an organic gel precursor (A) comprising a monomer component (A1) composed of at least one polyfunctional isocyanate and a monomer component (A2) composed of at least one compound selected from among polyfunctional amines and polyfunctional hydroxy compounds; (b) reaction of the gel precursor (A) in the presence of an open-celled macroporous foam (B) and a solvent (C) to form a xerogel composite; (c) drying of the xerogel composite by conversion of the solvent (C) into the gaseous state at a temperature and a pressure below the critical temperature and the critical pressure of the solvent (C). The invention further relates to the xerogel composites which can be obtained in this way and their use as insulating material, for thermal insulation, vacuum insulation panels, in refrigeration units or in buildings.