Abstract: Provided herein are inter alia novel compositions and methods having application in the field of enhanced oil recovery. In particular, the large hydrophobe compounds and mixtures thereof presented herein can be used, inter alia, for the recovery of a large range of crude oil compositions from challenging reservoirs.
Type:
Grant
Filed:
April 17, 2012
Date of Patent:
June 5, 2018
Assignees:
Board of Regents, The University of Texas System, Harcros Chemicals, Inc.
Inventors:
Upali P. Weerasooriya, Gary A. Pope, Peter Radford, Howard Stevenson
Abstract: A process for reacting, in the presence of a particular calcium containing catalyst, an amine having an active hydrogen and one or more of a fatty acid ester or a fatty acid.
Type:
Grant
Filed:
October 16, 2009
Date of Patent:
February 23, 2016
Assignee:
HARCROS CHEMICALS INC.
Inventors:
Upali Weerasooriya, John Boorem, Brian Hodle, Aaron Boorem, Peter Radford, Howard Stevenson, G. Gerald Barr
Abstract: A process for preparing an alkoxylation catalyst suitable for alkoxylating compounds that includes mixing a calcium-containing compound in a dispersing medium having a boiling point less that 160° C. with a carboxylic acid and an inorganic acid or anhydride.
Type:
Grant
Filed:
April 27, 2004
Date of Patent:
October 10, 2006
Assignee:
Harcros Chemicals Inc.
Inventors:
Upali Peter Weerasooriya, James Lyle Bennett, Peter Paul Radford
Abstract: A high strength curable resin composition of an epoxy compound having an oxirane group and an elastomer grafted polyol covalently linked to the epoxy compound other than by the oxirane group.
Type:
Grant
Filed:
November 23, 1994
Date of Patent:
May 28, 1996
Assignee:
Harcros Chemicals Inc.
Inventors:
Pinakin M. Patel, Walter W. Stottmeister
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