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. 24, 2020
Filed:
Jun. 16, 2016
Huntsman International Llc, The Woodlands, TX (US);
Thomas Julien Joncheray, Warve, BE;
Jan Vandenbroeck, Scherpenheuvel-Zichem, BE;
Gilles Jean Geumez, Waterloo, BE;
HUNTSMAN INTERNATIONAL LLC, The Woodlands, TX (US);
Abstract
A synthesis method for making an isocyanate based organic xerogel having a low density (i.e. <400 kg/m) and a small pore size (<150 nm) in combination with a specific surface area >100 m/g is disclosed. The synthesis method avoiding or reducing gel shrinkage during the solvent removal step is characterized by the step wherein the organic solvent used to synthesize the isocyanate based organic xerogel is replaced by water such that during the solvent removal step only water needs to be removed to dry the porous network and to obtain the isocyanate based organic xerogel.