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:
Dec. 06, 1994
Filed:
Nov. 09, 1993
Timothy A Brandvold, Buffalo Grove, IL (US);
Jennifer S Holmgren, Bloomingdale, IL (US);
Thomas P Malloy, Lake Zurich, IL (US);
UOP, Des Plaines, IL (US);
Abstract
A process for forming a solid acid catalyst where all of the add functionality is covalently bonded to the organic portion of an organically-bridged polysilsesquioxane framework has been developed. The process involves polymerizing a monomer through sol-gel processing to form an organically-bridged polysilsesquioxane, reacting an acid group onto the organic portion of the organically-bridged polysilsesquioxane, and recovering the acid functionalized product. The invention also includes the product acid functionalized organically-bridged polysilsesquioxane catalyst of the process described. The catalyst is unique in that the acid functionality is incorporated within an organic-inorganic hybrid framework as opposed to being attached to pendant organic groups.