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:
Aug. 31, 2004
Filed:
Apr. 26, 2001
Applicant:
Inventors:
Anantha N. Desikan, Ossining, NY (US);
George E. Whitwell, Cornwall-on-Hudson, NY (US);
Assignee:
Akzo Nobel N.V., Arnhem, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 3/906 ;
U.S. Cl.
CPC ...
C07C 3/906 ;
Abstract
The isomerization of an alkylated phenol composition that contains an ortho-alkyl substituted phenol component to isomerize and reduce the level of ortho-alkyl substituted phenol component therein can be accomplished by heating that composition in the presence of a catalytically effective amount of a solid acid catalyst to carry out such isomerization and reduction in the level of ortho-alkyl substituted phenol. Examples of suitable solid acid catalysts can be selected from the H-form zeolites, the supported sulfonic acids, and the heteropoly acids. The resulting isomerized product can be subsequently phosphorylated.