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. 30, 2024
Filed:
Sep. 14, 2018
Dow Global Technologies Llc, Midland, MI (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);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A method of producing an alcohol ethoxylate surfactant or lubricant, the method including 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)(R)(R)(R), whereas M is boron, aluminum, indium, bismuth or erbium, R, R, R, and Rare each independent, Rincludes a first fluoroalkyl-substituted phenyl group, Rincludes a second fluoroalkyl-substituted phenyl group or a first fluoro/chloro-substituted phenyl group, Rincludes a third fluoroalkyl-substituted phenyl group or a second fluoro/chloro-substituted phenyl group, and optional Rincludes a functional group or functional polymer group, Rbeing different from at least one of Rand R. The method further including forming an 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.