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公开(公告)号:US11958936B2
公开(公告)日:2024-04-16
申请号:US16640004
申请日:2018-09-14
Applicant: Dow Global Technologies LLC
Inventor: Arjun Raghuraman , William H. Heath , Sukrit Mukhopadhyay , Heather A. Spinney , David R. Wilson , Anthony P. Gies , Manjiri R. Paradkar
IPC: C08G18/58 , C08G18/48 , C08G18/76 , C08G59/14 , C08G65/26 , C09D175/04 , C09J175/04
CPC classification number: C08G18/58 , C08G18/4825 , C08G18/4829 , C08G18/4854 , C08G18/7621 , C08G18/7671 , C08G59/145 , C08G65/2654 , C08G65/266 , C09D175/04 , C09J175/04 , C08G2110/0008 , C08G2110/0025 , C08G2190/00
Abstract: A method of producing a polyether polyol includes reacting a low molecular weight initiator with one or more monomers in the presence of a polymerization catalyst, and the low molecular weight initiator has a nominal hydroxyl functionality of at least 2. The one or more monomers includes at least one selected from propylene oxide and butylene oxide. The polymerization catalyst is 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 fluoroalkyl-substituted phenyl group, R2 incudes a fluoroalkyl-substituted phenyl group or a fluoro/chloro-substituted phenyl group, R3 includes a fluoroalkyl-substituted phenyl group or a 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.
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公开(公告)号:US11912822B2
公开(公告)日:2024-02-27
申请号:US16642216
申请日:2018-09-14
Applicant: Dow Global Technologies LLC
Inventor: Arjun Raghuraman , William H. Heath , Sukrit Mukhopadhyay , Heather A. Spinney , David R. Wilson
CPC classification number: C08G65/2654 , C07F5/027 , C08G18/4841 , C08G18/4854 , C08G18/7621 , C08G18/7671 , C08G65/266 , C08G65/2684 , C08G2650/22 , C08G2650/38 , C08G2650/44 , C10M107/34 , C11D1/72
Abstract: A method of producing a polyether polyol includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, and the low molecular weight initiator has a nominal hydroxyl functionality at least 2. The polymerization catalyst is 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 fluoroalkyl-substituted phenyl group, R2 incudes a fluoroalkyl-substituted phenyl group or a fluoro/chloro-substituted phenyl group, R3 includes a fluoroalkyl-substituted phenyl group or a 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.
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公开(公告)号:US10184026B2
公开(公告)日:2019-01-22
申请号:US15533355
申请日:2015-12-05
Applicant: Dow Global Technologies LLC
Inventor: Rafael Benavides , David A. Babb , Matthias Schaefer , Patrick Fontanella , William H. Heath , Wenwen Li
IPC: C08G65/336 , C08G18/10 , C08G18/28
Abstract: Vinyl-functional alcohols are silylated by reaction with a hydrolysable silyl hydride compound. The starting alcohol is heated and then combined with the silyl hydride and catalyst and allowed to heat exothermically. Cooling is applied when the conversion of vinyl groups is between 90-99%. In some embodiments, specified amounts of water are present. The cooling regimen and control of water content reduces certain side reactions, leading to greater yields to desired product.
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公开(公告)号:US20180346637A1
公开(公告)日:2018-12-06
申请号:US15774827
申请日:2016-11-09
Applicant: Dow Global Technologies LLC
Inventor: Adam C. Colson , Dan Yu , Daniel A. Aguilar , Amber Marie Stephenson , William H. Heath , Shouren Ge
IPC: C08G18/48 , C08G18/76 , C08G18/10 , C09J175/08 , C09D175/08
CPC classification number: C08G18/4854 , C08G18/10 , C08G18/3206 , C08G18/4812 , C08G18/7614 , C08G18/7671 , C09D175/08 , C09J175/08 , C08G18/48
Abstract: A cured composition including a reaction product of a mixture that includes an isocyanate component having one or more isocyanates and an isocyanate-reactive component having a butylene oxide based polyol, which has a number average molecular weight greater than 2,000 g/mol and less than 8,000 g/mol and a nominal hydroxyl functionality from (2) to (4). At least (50) wt % of a total weight of alkylene oxides used to form the butylene oxide based polyol is butylene oxide. An isocyanate index of the mixture is from (90) to (150). The cured composition in a cured state exhibits a first tan delta peak between a first temperature range of 50° C. to 0° C. and a second tan delta peak between a second temperature range of 75° C. and 150° C., according to a tan delta plot over a range of temperatures, and a value of the first tan delta peak and a value of the second tan delta peak each represents a ratio of a loss modulus of the cured composition and a storage modulus of the cured composition at a specific temperature within the range of temperatures, as measured according to dynamic mechanical thermal analysis. The values of the first and the second tan delta peaks are from (0.10) to (0.90).
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公开(公告)号:US20180046076A1
公开(公告)日:2018-02-15
申请号:US15559564
申请日:2016-02-25
Applicant: Dow Global Technologies LLC
Inventor: Christopher S. Letko , William H. Heath , Nathan Wilmot , Sven Claessens , William L. Heaner, IV , Adam C. Colson , Stephen W. King , John G. Pendergast, Jr.
CPC classification number: G03F7/0037 , B29C64/135 , B29K2033/04 , B29K2063/00 , B29K2075/00 , B29K2105/0002 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C08F290/067 , C08G18/10 , C08G18/246 , C08G18/4866 , C08G18/672 , C08G18/673 , C08G18/7607 , C08G18/7671 , G03F7/031 , C08G18/48 , C08F222/1006
Abstract: A three-dimensional printing photocurable composition includes from 20 wt % to 70 wt % of an urethane acrylate component, from 20 wt % to 60 wt % of a multifunctional epoxide component, from 1 wt % to 15 wt % of a monomer component, and from 1 wt % to 8 wt % of a photoinitiator component, based on the total weight of the composition. The urethane acrylate component includes the capping reaction product of an acrylate and an isocyanate terminated prepolymer and the isocyanate-terminated prepolymer is the reaction product of a polyisocyanate and at least one polyol having a molecular weight of at least 3000 g/mol. The multifunctional epoxide component includes one or more multifunctional epoxides. The monomer component includes at least one of a multifunctional acrylate monomer and a multifunctional vinyl ether monomer.
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公开(公告)号:US20150247004A1
公开(公告)日:2015-09-03
申请号:US14635075
申请日:2015-03-02
Applicant: Dow Global Technologies LLC , Northwestern University
Inventor: Vincent Lombardo , Karl Scheidt , Emily Leitsch , John Torkelson , Elizabeth Dhulst , William H. Heath , Nathan Wilmot
IPC: C08G71/04
CPC classification number: C08G71/04 , C08F283/006 , C08G2190/00
Abstract: A cooperative catalyst system includes a Lewis acid and a Lewis base for the formation of non-isocyanate based polyurethane using a cyclic carbonate and an amine. A method of forming non-isocyanate based polyurethane includes providing a cyclic carbonate, an amine, and a cooperative catalyst system that has a Lewis acid and a Lewis base.
Abstract translation: 合作催化剂体系包括路易斯酸和路易斯碱,用于使用环状碳酸酯和胺形成非异氰酸酯基聚氨酯。 形成非异氰酸酯基聚氨酯的方法包括提供具有路易斯酸和路易斯碱的环状碳酸酯,胺和配位催化剂体系。
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公开(公告)号:US12071505B2
公开(公告)日:2024-08-27
申请号:US17277416
申请日:2019-09-17
Applicant: Dow Global Technologies LLC
Inventor: Kshitish A. Patankar , Arjun Raghuraman , Thomas P. Willumstad , Mark F. Sonnenschein , Jody Henning , Heather A. Spinney , David R. Wilson , Sukrit Mukhopadhyay , William H. Heath
CPC classification number: C08G18/4825 , C08G18/3206 , C08G18/6674 , C08G65/2609 , C08G65/2654 , C08G65/2684
Abstract: Polyurethanes are made in a one-shot process from one or more polyols having a hydroxyl equivalent weight of at least 350, wherein at least 50% of the weight of iii) is a hydroxyl-containing polymer of propylene oxide, the hydroxyl-containing polymer of propylene oxide having a hydroxyl equivalent weight of at least 350, an average of 1.8 to 3 hydroxyl groups per molecule of which hydroxyl groups 40 to 70% are primary hydroxyl groups, an oxyethylene content of no greater than 10% by weight based on the weight of the polymer and a polydispersity of 1.175 or less. The polyurethanes exhibit excellent mechanical properties, are highly hygroscopic and cured rapidly.
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公开(公告)号:US11479642B2
公开(公告)日:2022-10-25
申请号:US16644284
申请日:2018-09-14
Applicant: Dow Global Technologies LLC , Northwestern University
Inventor: Arjun Raghuraman , William H. Heath , Sukrit Mukhopadhyay , Heather A. Spinney , David R. Wilson , Anthony P. Gies , Manjiri R. Paradkar , Justin M. Notestein , SonBinh T. Nguyen
Abstract: A method of producing a polyether polyol that includes reacting a low molecular weight initiator with one or more monomers in the presence of a polymerization catalyst, the low molecular weight initiator having a number average molecular weight of less than 1,000 g/mol and a nominal hydroxyl functionality at least 2, the one or more monomers including at least one selected from propylene oxide and butylene oxide, 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. The method further includes forming a polyether polyol 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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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
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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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.
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