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:
Dec. 05, 1995
Filed:
Mar. 03, 1995
Applicant:
Inventors:
Andrzej M Piotrowski, Peekskill, NY (US);
Dennis F Taylor, Granite Springs, NY (US);
Dietmar Seyferth, Lexington, MA (US);
Assignee:
Akzo Nobel N.V., Arnhem, NL;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528-4 ; 568-6 ;
Abstract
Bromomagnesium tetrakis(fluorophenyl) borate reactible intermediates can be formed by reacting at least four equivalents of fluorophenyl magnesium bromide with every one equivalent of boron trifluoride in ether solvent using a sufficient amount of heat to drive the reaction to completion. This type of reactible intermediate can then be reacted with a salt containing a suitable cation, such as ammonium, trityl or onium, preferably substituted with phenyl or alkyl, such as lower alkyl, to form the desired combination of weakly coordinating boron anion and activating cation.