Patent ID: 7771609
Filing Date: 2010-08-10
Classification: C01B,C07F,C08G

Abstract:
1. A porous cross-linked metal oxide or silicon oxide based aerogel material produced by: (a) first, forming a metal oxide or silicon oxide based sol-gel preformed material prior to reaction with an organic cross-linking agent, (b) contacting the metal oxide or silicon oxide based sol-gel preformed material with an organic cross-linking agent in an amount comprising at least about 2% by weight based on the total weight of the cross-linked metal oxide or silicon oxide based sol-gel material, the cross-linking agent comprising an organic compound that provides an organic surface layer chemically bound to surfaces of said metal oxide or silicon oxide based sol-gel preformed material and then, (c) drying the metal oxide or silicon oxide based sol-gel preformed material provided with the surface layer of chemically bound organic material to form the porous cross-linked metal oxide or silicon oxide based aerogel material.