Invention Grant
- Patent Title: Process of manufacturing surfactants and lubricants
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Application No.: US16645982Application Date: 2018-09-14
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Publication No.: US11186683B2Publication Date: 2021-11-30
- Inventor: Arjun Raghuraman , William H. Heath , Bruce D. Hook , Wanglin Yu , Sukrit Mukhopadhyay , Heather A. Spinney , David R. Wilson , Justin M. Notestein , SonBinh T. Nguyen
- Applicant: Dow Global Technologies LLC , Northwestern University
- Applicant Address: US MI Midland; US IL Evanston
- Assignee: Dow Global Technologies LLC,Northwestern University
- Current Assignee: Dow Global Technologies LLC,Northwestern University
- Current Assignee Address: US MI Midland; US IL Evanston
- International Application: PCT/US2018/051002 WO 20180914
- International Announcement: WO2019/055741 WO 20190321
- Main IPC: C08G65/26
- IPC: C08G65/26 ; B01J31/02 ; C08G18/48 ; B01J31/14 ; C07C41/03

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(R1)1(R2)1(R3)1(R4)0 or 1, whereas M is boron, aluminum, indium, bismuth or erbium, R1, R2 and R3 each includes a same fluoroalkyl-substituted phenyl group, and optional R4 includes a functional group or functional polymer group. R1, R2, and R3 are 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.
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