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:
Aug. 05, 2008
Filed:
Nov. 03, 2003
George W. Roberts, Raleigh, NC (US);
Dawei Xu, Raleigh, NC (US);
Douglas J. Kiserow, Cary, NC (US);
Ruben G. Carbonell, Raleigh, NC (US);
George W. Roberts, Raleigh, NC (US);
Dawei Xu, Raleigh, NC (US);
Douglas J. Kiserow, Cary, NC (US);
Ruben G. Carbonell, Raleigh, NC (US);
North Carolina State University, Raleigh, NC (US);
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.