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:
Jun. 26, 2001
Filed:
Jul. 08, 1999
Jay Fingeret Miller, Charleston, WV (US);
Joan Ayer Rodberg, Charleston, WV (US);
Brian Michael Roesch, Cross Lanes, WV (US);
George Ernest Keller, II, South Charleston, WV (US);
Lisa Evans Curry, Hurricane, WV (US);
Paul Frank Bryan, Mt. Vernon, IN (US);
John Edward Davis, Charleston, WV (US);
James Charles Hatfield, St. Albans, WV (US);
Union Carbide Chemicals & Plastics Technology Corporation, Danbury, CT (US);
Abstract
This invention relates to a process for the separation of a metal complex catalyst and any free ligand which may be present, from a homogeneous organic synthesis reaction mixture using sub-nanoporous, chemically stable membranes having discrete pores which allow organic products and by-products to pass through the membrane as permeate while retaining substantially all of the metal complex catalyst and free ligand, if any, as retentate.