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:
Nov. 30, 2021
Filed:
Sep. 14, 2018
Dow Global Technologies Llc, Midland, MI (US);
Northwestern University, Evanston, IL (US);
Arjun Raghuraman, Pearland, TX (US);
William H. Heath, Lake Jackson, TX (US);
Bruce D. Hook, Lake Jackson, TX (US);
Wanglin Yu, Pearland, TX (US);
Sukrit Mukhopadhyay, Midland, MI (US);
Heather A. Spinney, Midland, MI (US);
David R. Wilson, Midland, MI (US);
Justin M. Notestein, Evanston, IL (US);
SonBinh T. Nguyen, Evanston, IL (US);
Dow Global Technologies LLC, Midland, MI (US);
Northwestern University, Evanston, IL (US);
Abstract
A method of producing an alcohol ethoxylate surfactant or lubricant includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a nominal hydroxyl functionality at least 1, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R)1(R)1(R)1(R), whereas M is boron, aluminum, indium, bismuth or erbium, R, Rand Reach includes a same fluoroalkyl-substituted phenyl group, and optional Rincludes a functional group or functional polymer group. R, R, and Rare the same fluoroalkyl-substituted phenyl group. The method further includes forming the alcohol ethoxylate surfactant or lubricant having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.