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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A silicone polymer is provided, modified with at least one functional group from the class of anthraquinone amide groups; anthraquinone sulfonamide groups; thioxanthone amide groups; or thioxanthone sulfone amide groups. The polymer can be combined with a hydrocarbon solvent or with supercritical carbon dioxide (CO.sub.2), and is very effective for increasing the viscosity of either medium. A process for the recovery of oil from a subterranean, oil-bearing formation is also described, using supercritical carbon dioxide modified with the functionalized silicone polymer. A process for extracting natural gas or oil from a bedrock-shale formation is also described, again using the modified silicone polymer.
O'Brien, Michael Joseph (Halfmoon, NY), Perry, Robert James (Niskayuna, NY), Enick, Robert Michael (Bethel Park, PA), Lee, Jason Jiwoo (Pittsburgh, PA)
14/ 683,599
April 10, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT [0001] This invention was made with Government support under grant number DE-AR0000292, awarded by the Department of Energy. The Government has certain rights in the invention.