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:
Apr. 22, 2014
Filed:
Mar. 17, 2011
Applicants:
Marc Dube, Ottawa, CA;
Somaieh Salehpour, Ottawa, CA;
Inventors:
Marc Dube, Ottawa, CA;
Somaieh Salehpour, Ottawa, CA;
Assignee:
University of Ottawa, Ottawa, ON, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/09 (2006.01); C07C 43/13 (2006.01); C08G 65/34 (2006.01);
U.S. Cl.
CPC ...
C07C 41/09 (2013.01); C07C 43/135 (2013.01); C08G 65/34 (2013.01);
Abstract
Methods are provided for making polyglycerol. The methods include heating glycerol at reduced pressure in the absence of a glyceride and in the presence of a catalytic amount of an acid selected from the group consisting of sulfuric acid, triflic acid, hydrochloric acid, hexafluorophosphoric acid, tetrafluoroboric acid and mixtures thereof.