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:
Sep. 09, 2014
Filed:
Jul. 09, 2002
Chandrashekar Ramarao, Hyderabad, IN;
David Joszef Tapolczay, Redbourn, GB;
Ian Malcolm Shirley, Bracknell, GB;
Stephen Christopher Smith, Bracknell, GB;
Steven Victor Ley, Cambridge, GB;
Chandrashekar Ramarao, Hyderabad, IN;
David Joszef Tapolczay, Redbourn, GB;
Ian Malcolm Shirley, Bracknell, GB;
Stephen Christopher Smith, Bracknell, GB;
Steven Victor Ley, Cambridge, GB;
Reaxa Limited, Manchester, GB;
Abstract
A microencapsulated catalyst is prepared by dissolving or dispersing a catalyst in a first phase (for example an organic phase), dispersing the first phase in a second, continuous phase (for example an aqueous phase) to form an emulsion, reacting one or more microcapsule wall-forming materials at the interface between the dispersed first phase and the continuous second phase to form a microcapsule polymer shell encapsulating the dispersed first phase core and optionally recovering the microcapsules from the continuous phase. The catalyst is preferably a transition metal catalyst and the encapsulated catalyst may be used for conventional catalysed reactions. The encapsulated catalyst may recovered from the reaction medium and re-cycled.