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. 17, 1993
Filed:
Jul. 10, 1992
Applicant:
Inventors:
Jeffrey E Telschow, Tarrytown, NY (US);
Edward D Weil, Hastings-on-Hudson, NY (US);
Assignee:
Akzo N V, Arnhem, NL;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
558 74 ; 558 73 ; 568 12 ;
Abstract
A process for the formation of pentaerythritol-based phosphorus heterocycles comprises the reaction of a pentaerythritol polyol, e.g., pentaerythritol, with a trivalent or pentavalent phosphorus compounds, e.g., a phosphorus oxytrihalide, a triorganophosphite, or a phosphorus trihalide, in an aryl phosphate solvent at elevated temperature.