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:
Mar. 11, 2008
Filed:
Aug. 05, 2003
Applicants:
Hari Babu Sunkara, Hockessin, DE (US);
Mayis Seapan, Landenberg, PA (US);
George Francis Diffendall, Wilmington, DE (US);
Francis Glenn Gallagher, Wilmington, DE (US);
Inventors:
Hari Babu Sunkara, Hockessin, DE (US);
Mayis Seapan, Landenberg, PA (US);
George Francis Diffendall, Wilmington, DE (US);
Francis Glenn Gallagher, Wilmington, DE (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 29/34 (2006.01); C07C 29/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process comprising contacting PO3G having color with hydrogen in the presence of a hydrogenation catalyst, wherein the PO3G, after hydrogenation, has a APHA color of less than about 50.