公开(公告)号：US11186683B2

公开(公告)日：2021-11-30

申请号：US16645982

申请日：2018-09-14

Applicant: Dow Global Technologies LLC ,  Northwestern University

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

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.

公开(公告)号：US20200277436A1

公开(公告)日：2020-09-03

申请号：US16646060

申请日：2018-09-14

Applicant: Dow Global Technologies LLC

Inventor： Arjun Raghuraman ,  William H. Heath ,  Bruce D. Hook ,  Wanglin Yu ,  Sukrit Mukhopadhyay ,  Heather A. Spinney ,  David R. Wilson

IPC: C08G65/26

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(R1)1(R2)1(R3)1(R4)0 or 1, whereas M is boron, aluminum, indium, bismuth or erbium, R1, R2, R3, and R4 are each independent, R1 includes a first fluoroalkyl-substituted phenyl group, R2 includes a second fluoroalkyl-substituted phenyl group or a first fluoro/chloro-substituted phenyl group, R3 includes a third fluoroalkyl-substituted phenyl group or a second fluoro/chloro-substituted phenyl group, and optional R4 includes a functional group or functional polymer group, R1 being different from at least one of R2 and R3. 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.

公开(公告)号：US20160096792A1

公开(公告)日：2016-04-07

申请号：US14781144

申请日：2014-06-09

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Paul R. Elowe ,  David G. Barton ,  Adam Chojecki ,  Beata A. Kilos ,  Dennis W. Jewell ,  Adam S. Cieszlak ,  Bruce D. Hook

IPC: C07C41/09 ,  B01J27/06 ,  B01J27/32 ,  B01J27/125

CPC classification number: C07C41/09 ,  B01J27/06 ,  B01J27/08 ,  B01J27/125 ,  B01J27/32 ,  B01J35/1014 ,  B01J38/42 ,  B01J38/44 ,  C07C41/58 ,  C09K5/10 ,  Y02P20/584 ,  C07C43/275

Abstract: Provided is a method for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a halogenated rare earth element oxide catalyst, wherein the used dehydration catalyst may be regenerated by a halogenation step. The rare earth element oxide is an oxide of a light rare earth element, an oxide of a medium rare earth element, an oxide of a heavy rare earth element, an oxide of yttrium, or a mixtures of two or more thereof.

Abstract translation: 提供了通过在卤化稀土元素氧化物催化剂的存在下通过芳族醇化合物的脱水来制备二芳基醚化合物的方法，其中所述脱水催化剂可以通过卤化步骤再生。 稀土元素氧化物是轻稀土元素的氧化物，中等稀土元素的氧化物，重稀土元素的氧化物，钇的氧化物，或其两种以上的混合物。