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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
Applicant: Dow Global Technologies LLC
Inventor： Arjun Raghuraman , William L. Heaner , David A. Babb , Manjiri R. Paradkar
Abstract: 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：US10301419B2
公开(公告)日：2019-05-28
申请号：US15735179
申请日：2016-06-20
Applicant: Dow Global Technologies LLC
Inventor： Jean-Paul Masy , David A. Babb , Irena Amici-Kroutilova
Abstract: Random poly(propylene oxide-co-ethylene oxide) polymers are made by polymerizing a mixture of propylene oxide and a small amount of ethylene oxide in the presence of a starter and a double metal cyanide catalyst complex, and then feeding in a mixture of propylene oxide and ethylene oxide while increasing the ethylene oxide concentration in the mixture to at least 90%. This produces a polyol suitable for making high resiliency polyurethane foam without need for adding an ethylene oxide cap.
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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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24.发明申请公开(公告)号：US20180155485A1
公开(公告)日：2018-06-07
申请号：US15735179
申请日：2016-06-20
Applicant: Dow Global Technologies LLC
Inventor： Jean-Paul Masy , David A. Babb , Irena Amici-Kroutilova
CPC classification number: C08G18/485 , C08G65/2606 , C08G65/2609 , C08G65/2663 , C08G65/2696 , C08G71/04 , C08G2650/58 , C08J9/0061 , C08J2375/08
Abstract: Random poly(propylene oxide-co-ethylene oxide) polymers are made by polymerizing a mixture of propylene oxide and a small amount of ethylene oxide in the presence of a starter and a double metal cyanide catalyst complex, and then feeding in a mixture of propylene oxide and ethylene oxide while increasing the ethylene oxide concentration in the mixture to at least 90%. This produces a polyol suitable for making high resiliency polyurethane foam without need for adding an ethylene oxide cap.
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公开(公告)号：US09708448B2
公开(公告)日：2017-07-18
申请号：US15024096
申请日：2014-08-16
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： Jean-Paul Masy , Myriam Linke , David A. Babb , John W. Weston
CPC classification number: C08G65/12 , C08G65/2606 , C08G65/2609 , C08G65/2663 , C08G65/2696
Abstract: 1,2-butylene oxide is homopolymerized or randomly copolymerized in the presence of a double metal cyanide catalyst such as a zinc hexacyanocobaltate catalyst complex. The polymers unexpectedly contain significant amounts of monofunctional impurities, which can be partially controlled through selection of polymerization conditions.
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Patent Agency Ranking
公开(公告)号：US12024587B2
公开(公告)日：2024-07-02
申请号：US16642436
申请日：2018-08-21
Applicant: Dow Global Technologies LLC
Inventor： Jean-Paul Masy , David A. Babb
IPC: C08G65/12 , C08G18/16 , C08G18/18 , C08G18/20 , C08G18/24 , C08G18/48 , C08G18/76 , C08G65/02 , C08G65/26
CPC classification number: C08G65/12 , C08G18/165 , C08G18/1833 , C08G18/2063 , C08G18/244 , C08G18/4816 , C08G18/4829 , C08G18/4837 , C08G18/7664 , C08G65/02 , C08G65/26 , C08G65/2663 , C08G65/269 , C08G65/2696 , C08G2110/0016 , C08G2110/0058 , C08G2110/0083
Abstract: An alkylene oxide mixture containing greater than 50% by weight ethylene oxide is continuously polymerized in the presence of a double metal cyanide polymerization catalyst and an alkoxylated initiator having a hydroxyl equivalent weight of up to 200. The catalyst remains active, producing a polyol having an equivalent weight of up to 700 with a high oxyethylene content continuously at fast reaction rates.
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公开(公告)号：US20230095201A1
公开(公告)日：2023-03-30
申请号：US17790179
申请日：2021-01-27
Applicant: Dow Global Technologies LLC
Inventor： Anne-Catherine Bédard , Matthew E. Belowich , Mari S. Rosen , Sandra Varinia Bernales Candia , David A. Babb , Clark H. Cummins , Richard J. Keaton , Matthew M. Yonkey
IPC: C08G65/26
Abstract: Polyethers are prepared by polymerizing an alkylene oxide in the presence of a starter, an aluminum compound that has at least one hydrocarbyl substituent, and a cyclic amidine. The phosphorus-nitrogen base is present in only a small molar ratio relative to the amount of starter. The presence of such small amounts of cyclic amidine greatly increases the catalytic activity of the system, compared to the case in which the aluminum compound is used by itself. The product polyethers have low amounts of unsaturated polyether impurities and little or no unwanted high molecular weight fraction. Polymers of propylene oxide have very low proportions of primary hydroxyl groups.
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公开(公告)号：US11149117B2
公开(公告)日：2021-10-19
申请号：US16354114
申请日：2019-03-14
Applicant: Dow Global Technologies LLC
Inventor： David S. Laitar , David A. Babb , Carlos M. Villa , Richard Keaton , Jean-Paul Masy
Abstract: Alkylene oxide polymerizations are performed in the presence of a double metal cyanide polymerization catalyst and certain magnesium, Group 3-Group 15 metal or lanthanide series metal compounds. The presence of the magnesium, Group 3-Group 15 metal or lanthanide series metal compound provides several benefits including more rapid catalyst activation, faster polymerization rates and the reduction in the amount of ultra high molecular weight polymers that are formed. The catalyst mixture is unexpectedly useful in making polyethers having low equivalent weights.
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公开(公告)号：US20210198425A1
公开(公告)日：2021-07-01
申请号：US16610563
申请日：2018-05-10
Applicant: Dow Global Technologies LLC
Inventor： David K. Steelman , David A. Babb , Joost Depicker , Jasmijn Kuijper , Mari S. Rosen
Abstract: Embodiments relate to a method of producing a modified double metal cyanide complex, a method of producing a monol or polyol that includes providing the modified double metal cyanide complex, an alkylene oxide polymerization process that includes providing the modified double metal cyanide complex, a batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex, and a polyether polyol prepared using the batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex.
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公开(公告)号：US20210154656A1
公开(公告)日：2021-05-27
申请号：US16610558
申请日：2018-05-10
Applicant: Dow Global Technologies LLC
Inventor： David K. Steelman , David A. Babb , Joost Depicker , Jasmijn Kuijper , Mari S. Rosen
Abstract: Embodiments relate to a method of producing a modified double metal cyanide complex, a method of producing a monol or polyol that includes providing the modified double metal cyanide complex, an alkylene oxide polymerization process that includes providing the modified double metal cyanide complex, a batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex, and a polyether polyol prepared using the batch, semi-batch, or continuous manufacturing process that includes providing the modified double metal cyanide complex.
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