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:
May. 28, 2010
Applicants:
Patrick Notté, Wavre, BE;
Albert Devaux, Mont-Saint-Guibert, BE;
Inventors:
Patrick Notté, Wavre, BE;
Albert Devaux, Mont-Saint-Guibert, BE;
Assignee:
Straitmark Holding AG, Zug, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/38 (2006.01); C07F 9/142 (2006.01); C07F 9/141 (2006.01);
U.S. Cl.
CPC ...
C07F 9/1411 (2013.01);
Abstract
A process for the manufacture of dialkyl phosphites is disclosed. In detail, dialkyl phosphites are prepared starting from PO, or partially hydrated species thereof cumulatively P—O, by reacting specific molar ratios of alcohol and P—O, containing from 1 to 6 P—O—P bonds in the molecule, in the presence of trialkylphospite (TAP) to thus yield high purity and high yield of dialkyl phosphites. The P—O reactant is preferably represented by liquid PO.