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:
May. 01, 2007
Filed:
Oct. 15, 2004
Theodorus Lambertus Hoeks, Bergen op Zoom, NL;
Chiel Albertus Leenders, Fijnaart, NL;
Robert Dirk Van DE Grampel, Bergen op Zoom, NL;
Theodorus Lambertus Hoeks, Bergen op Zoom, NL;
Chiel Albertus Leenders, Fijnaart, NL;
Robert Dirk van de Grampel, Bergen op Zoom, NL;
General Electric Company, Schenectady, NY (US);
Abstract
A method for making the phosphonium sulfonate salt of generic formula (1): wherein each X is independently a halogen or hydrogen, provided that the molar ratio of halogen to hydrogen is greater than about 0.90; p is 0 or 1 and q and r are integers of 0 to about 7 provided that q+r is less than 8 and that if p is not zero then r is greater than zero; and each R is the same or different hydrocarbon radical containing 1 to about 18 carbon atoms, the method comprising combining in an aqueous medium a compound of generic formula (2): wherein M is Li or Na, and X, q, p, and r are as defined above, with a stoichiometric excess of a compound of the generic formula (3):(R)P-Z  (3)wherein Z is a halogen and R is as defined above; and separating the product of formula (1) from the medium.