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. 24, 2002
Filed:
Jun. 29, 2001
Applicant:
Inventors:
Frederick J. Vyverberg, Lafayette, IN (US);
Robert W. Chapman, Mount Vernon, IN (US);
Assignee:
Pabu Services, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 9/6571 ;
U.S. Cl.
CPC ...
C07F 9/6571 ;
Abstract
A process for the production of pentaerythritol phosphate alcohol (PEPA) comprising reacting in the liquid phase phosphorus oxychloride (POCl ) with pentaerythritol (PE) at a reaction temperature of at least about 100° C. in the presence of a solvent which is an alkane substituted with at least one halogen atom and having an atmospheric boiling point of about 40 to about 150° C., e.g., 1,2-dichloroethane (ethylene dichloride). The reaction pressure is sufficiently high to maintain the solvent in the liquid phase.