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:
May. 19, 2015
Filed:
Nov. 28, 2012
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Stephen W. King, League City, TX (US);
Daniel A. Aguilar, Lake Jackson, TX (US);
Christophe R. Laroche, Lake Jackson, TX (US);
Assignee:
Dow Global Technologies LLC, United States of America, unknown;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 213/04 (2006.01);
U.S. Cl.
CPC ...
C07C 213/04 (2013.01); C07C 213/04 (2013.01); C07C 215/12 (2013.01);
Abstract
An improved process for making ethoxylated amine compounds such as ethanolamines. The improvement comprises the addition of an acid to the amine compound prior to the addition of ethylene oxide to a reactor wherein the ethoxylated amine compound is prepared. The improvement reduces the concentration of undesirable glycol ether and/or vinyl ether ethoxylate byproducts which may contribute to undesirable properties, such as color and foaming, of the ethoxylated amine compounds.