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:
Mar. 18, 2008
Filed:
Oct. 27, 2004
Dagmara Ortmann, Brig, CH;
Klaus-diether Wiese, Haltern am See, DE;
Oliver Moeller, Recklinghausen, DE;
Dirk Fridag, Haltern am See, DE;
Dagmara Ortmann, Brig, CH;
Klaus-Diether Wiese, Haltern am See, DE;
Oliver Moeller, Recklinghausen, DE;
Dirk Fridag, Haltern am See, DE;
OXENO Olefinchemie GmbH, Marl, DE;
Abstract
The present invention relates to a process for preparing organophosphites, organosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins. The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may serve, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.