Title:
HYDROGENATION OF POLYMERS IN THE PRESENCE OF SUPERCRITICAL CARBON DIOXIDE
Document Type and Number:
WIPO Patent Application WO2004052937
Kind Code:
A3
Abstract:
A method of hydrogenating a polymer comprises: (a) providing a dense phase, the dense phase comprising a polymer in a solvent; (b) providing a catalyst system, the catalyst system comprising as least one metal hydrogenation catalyst (preferably including nickel or ruthenium); and (c) providing a light phase, the light phase comprising, consisting of or consisting essentially of hydrogen and carbon dioxide; and (d) contacting the dense phase, the light phase and the catalyst system under conditions in which the hydrogen reacts with the polymer and hydrogenates the polymer.
Inventors:
ROBERTS GEORGE W (US)
XU DAWEI (US)
KISEROW DOUGLAS J (US)
CARBONELL RUBEN G (US)
XU DAWEI (US)
KISEROW DOUGLAS J (US)
CARBONELL RUBEN G (US)
Application Number:
PCT/US2003/035217
Publication Date:
December 16, 2004
Filing Date:
November 03, 2003
Export Citation:
Assignee:
UNIV NORTH CAROLINA STATE (US)
ROBERTS GEORGE W (US)
XU DAWEI (US)
KISEROW DOUGLAS J (US)
CARBONELL RUBEN G (US)
ROBERTS GEORGE W (US)
XU DAWEI (US)
KISEROW DOUGLAS J (US)
CARBONELL RUBEN G (US)
International Classes:
C08C19/02; C08F2/00; C08F8/04; C08F8/42; C08F; (IPC1-7): C08C19/02; C08F8/04; C08F8/42
Domestic Patent References:
| WO1997038955A1 | 1997-10-23 |
Foreign References:
| GB2374071A | 2002-10-09 | |||
| US3969382A | 1976-07-13 |
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