Patent ID: 6713643
Filing Date: 2004-03-30
Classification: B01J,C01B

Abstract:
A mesostructured, microporous to mesoporous organofunctional silica composition wherein a framework for the composition is comprised of O3Siâ€”Râ€”SiO3 and LSiO3 units linked through bridging Siâ€”Oâ€”Si bonds, wherein between 1% and 85% of the silicon atoms in the framework are LSiO3 units; wherein L is an organofunctional group linked to one silicon through a silicon-carbon covalent bond and R is an organic group linked to two silicon centers through two silicon-carbon covalent bonds; and wherein the composition exhibits at least one x-ray diffraction line corresponding to a lattice spacing between about 1.8 and 10 nm.