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:
Sep. 21, 2021
Filed:
Apr. 13, 2018
Basf SE, Ludwigshafen am Rhein, DE;
Dirk Weinrich, Lemförde, DE;
Wibke Loelsberg, Ludwigshafen am Rhein, DE;
Marc Fricke, Lemförde, DE;
Gimmy Alex Fernandez Ramirez, Ludwigshafen am Rhein, DE;
Volker Vogelsang, Lemfoerde, DE;
Alberto Bueno Morales, Hamburg, DE;
Raman Subrahmanyam, Hamburg, DE;
Pavel Gurikov, Hamburg, DE;
Ilka Selmer, Hamburg, DE;
Irina Smirnova, Hamburg, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
The present invention is directed to a process for preparing a porous material, at least comprising the steps of providing a gel comprising a solvent (S), wherein the solvent (S) has a volume (V1), pressurizing the gel with carbon dioxide at a temperature and a pressure at which carbon dioxide solubilizes in the solvent (S) forming gas-expanded liquid (EL), wherein the gas-expanded liquid (EL) has a volume (V2) and (V2) is greater than (V1); removing supernatant liquid, and drying the gel. The present invention further is directed to the porous material obtained or obtainable according to the process as such as the use of the porous material according to the invention in particular for medical, biomedical and pharmaceutical applications or for thermal insulation.