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公开(公告)号：US20230151157A1
公开(公告)日：2023-05-18
申请号：US17916834
申请日：2021-06-16
发明人： Marc-Andre Courtemanche , Anne-Catherine Bédard , Heather Spinney , David Wilson , Arjun Raghuraman , Sukrit Mukhopadhyay , Travis Sunderland
摘要： A composition and method can be used in the preparation of various siloxanes. The composition and method employ a fluorinated triarylborane Lewis acid, a hydrocarbonoxy-functional organosilicon compound, and a silyl hydride. The fluorinated triarylborane Lewis acid catalyzes reaction of a hydrocarbonoxy moiety (from the organosilicon compound) and a silicon-bonded hydrogen atom (from the silyl hydride) to form a siloxane bond.
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2.发明申请公开(公告)号：US20230123215A1
公开(公告)日：2023-04-20
申请号：US17915656
申请日：2021-06-16
发明人： Marc-Andre Courtemanche , Anne-Catherine Bedard , Heather Spinney , David Wilson , Arjun Raghuraman , Sukrit Mukhopadhyay , Andrew Shah , David Devore , David Laitar , Jordan Reddel , Shuqi Lai
摘要： A composition includes a silyl hydride (having at least one silicon-bonded hydrogen atom per molecule) and a fluorinated triarylborane Lewis acid. In the method, the Lewis acid catalyzes reaction of silicon bonded hydrogen atoms from the silyl hydride and water, thereby forming a siloxane bond in the resulting product. The composition and method can be used to form siloxane intermediates and cured networks.
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公开(公告)号：US20230312803A1
公开(公告)日：2023-10-05
申请号：US18041632
申请日：2021-10-19
发明人： Masayuki Suzuki , Arjun Raghuraman , John W. Weston , An Kaga , Richard J. Keaton , Adrian J. Birch , Maria Jose Cotanda Santapau
IPC分类号： C08G18/08 , C09D175/08 , C08G18/10 , C08G18/48 , C09J175/08
CPC分类号： C08G18/0895 , C09D175/08 , C08G18/10 , C08G18/4845 , C08G18/4829 , C09J175/08
摘要： Embodiments relate to a coating, adhesive, sealant, elastomer, or reaction injection molded material forming polyurethane composition that comprises an isocyanate component that includes at least one isocyanate-terminated prepolymer, and an isocyanate reactive component that includes at least one Lewis acid catalyst polymerized polyether polyol having a weight average molecular weight from 200 g/mol to 1,000 g/mol, an average primary hydroxyl group content of at least 30%, and an average acetal content of at least 0.05 wt %.
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公开(公告)号：US20230151156A1
公开(公告)日：2023-05-18
申请号：US17916827
申请日：2021-06-16
发明人： Marc-Andre Courtemanche , Anne-Catherine Bedard , Heather Spinney , David Wilson , Arjun Raghuraman , Sukrit Mukhopadhyay , Travis Sunderland
摘要： A polyfunctional organohydrogensiloxane is prepared using a fluorinated triarylborane Lewis acid as catalyst. The polyfunctional organohydrogensiloxane may be formulated into release coating compositions. Alternatively, the polyfunctional organohydrogensiloxane may be further functionalized with a curable group to form a clustered functional organosiloxane. The clustered functional organosiloxane may be formulated into thermal radical cure adhesive compositions.
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公开(公告)号：US20200017760A1
公开(公告)日：2020-01-16
申请号：US16496305
申请日：2018-03-21
发明人： Sachit Goyal , Arjun Raghuraman , Kaoru Aou , Juan Carlos Medina , Lenin Petroff , James Young, JR.
IPC分类号： C09K8/80 , C09D175/08
摘要： A coated article, such as a proppant, includes a base substrate and one or more polyurethane based coatings on an outer surface of the base substrate. The one or more polyurethane based coatings including the reaction product of an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that has one or more simple polyols and one or more polyether monols at a ratio from 1:18 to 18:1. An isocyanate index is greater than 0.2 and less than 1.0.
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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
发明人： Arjun Raghuraman , William H. Heath , Sukrit Mukhopadhyay , Heather A. Spinney , David R. Wilson , Anthony P. Gies , Manjiri R. Paradkar
IPC分类号： C08G18/58 , C08G18/48 , C08G18/76 , C08G59/14 , C08G65/26 , C09D175/04 , C09J175/04
CPC分类号： 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
摘要： 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
发明人： Arjun Raghuraman , William H. Heath , Sukrit Mukhopadhyay , Heather A. Spinney , David R. Wilson
CPC分类号： 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
摘要： 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：US20220033567A1
公开(公告)日：2022-02-03
申请号：US17277187
申请日：2019-09-17
发明人： Kshitish A. Patankar , Arjun Raghuraman , Thomas P. Willumstad , Mark F. Sonnenschein , Jody Henning , Heather A. Spinney , David R. Wilson , Sukrit Mukhopadhyay
摘要： Hydroxyl-containing copolymers of butylene oxide and ethylene oxide having a hydroxyl equivalent weight of at least 150, an average of 1.8 to 6 hydroxyl groups per molecule of which hydroxyl groups at least 70% are primary hydroxyl groups and an oxyethylene content of no greater than 10% by weight based on the weight of the copolymer, are useful for making polyurethanes. These polyols are characterized by high reactivity and fast curing times. Polyurethanes made using these polyols have excellent mechanical properties and are highly hydrophobic.
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公开(公告)号：US10435502B2
公开(公告)日：2019-10-08
申请号：US15542323
申请日：2016-01-08
摘要： Embodiments of the present disclosure are directed to polyether-acetal polyol compositions, more particularly to polyol compositions including a polyether-acetal polyol that can be utilized to form polyurethanes. As an example, a polyurethane formulation can include a polyol composition including a polyether-acetal polyol functionalized with at least one acetal functional group, where the polyol composition has an average hydroxyl functionality from 2 to 8 and a hydroxyl equivalent weight from 150 to 4000, where the portion of the polyether-acetal polyol that is functionalized with the at least one acetal functional group is 1 percent to 40 percent of a total weight of the polyether-acetal polyol, where the polyether-acetal polyol has a primary hydroxyl group content of at least 55 percent, and a polyisocyanate, where the polyurethane formulation has an isocyanate index in a range from 70 to 500.
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公开(公告)号：US09896542B2
公开(公告)日：2018-02-20
申请号：US15504368
申请日：2015-10-19
IPC分类号： C08G65/26
CPC分类号： C08G65/269 , B01J23/75 , B01J27/26 , C08G65/2654 , C08G65/266 , C08G65/2663 , C08G65/2696
摘要： A method of producing a high primary hydroxyl group content and a high number average molecular weight polyol includes preparing a mixture that includes a double metal cyanide catalyst and a low molecular weight polyether polyol having a number average molecular weight of less than 1,000 g/mol, the polyether polyol is derived from propylene oxide, ethylene oxide, or butylene oxide, setting the mixture to having a first temperature, adding at least one selected from propylene oxide, ethylene oxide, and butylene oxide to the mixture at the first temperature, allowing the mixture to react to form a reacted mixture, adding a Lewis acid catalyst to the reacted mixture, setting the reaction mixture including the second catalyst to have a second temperature that is less than the first temperature, and adding additional at least one selected from propylene oxide, ethylene oxide, and butylene oxide to the reacted mixture at the second temperature such that a resultant polyol having a primary hydroxyl group content of at least 60% and a number average molecular weight greater than 2,500 g/mol is formed.
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