Patents by Inventor Kaoru Aou
Kaoru Aou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10752830Abstract: A coated proppant includes a solid core proppant particle and a heavy metal recovery coating, including heavy metal recovery crystals embedded within a polymer resin matrix. A process for the manufacture of a coated proppant includes providing a solid core proppant particle, and forming on the solid core proppant particle, a heavy metal recovery coating including heavy metal recovery crystals embedded within a polymer resin matrix.Type: GrantFiled: June 27, 2016Date of Patent: August 25, 2020Assignee: Dow Global Technologies LLCInventors: Kaoru Aou, Juan Carlos Medina, H. Robert Goltz, Sachit Goyal, Arjun Raghuraman, Fabio Aguirre Vargas, Avery L. Watkins, David A. Reuschle, Ann F. Johnson, Yasmin N. Srivastava
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Patent number: 10703964Abstract: A coated proppant includes a solid core proppant particle, a first resin coating, and a second coating on the first resin coating. The second coating includes the reaction product of one or more curatives and one or more preformed aliphatic or cycloaliphatic based isocyanurate tri-isocyanates, derived from aliphatic diisocyanates, cycloaliphatic diisocyanates, or a combination of aliphatic and cycloaliphatic diisocyanates.Type: GrantFiled: March 22, 2016Date of Patent: July 7, 2020Assignee: Dow Global Technologies LLCInventors: Sachit Goyal, Kaoru Aou, Juan Carlos Medina, Arjun Raghuraman, Armin Hassanzadeh
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Patent number: 10626214Abstract: A reaction system for forming a viscoelastic polyurethane foam includes an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that is a mixture formed by adding at least a polyol component, an additive component, and a preformed aqueous polymer dispersion. The mixture includes, based on the total weight of the mixture, from 50.0 wt % to 99.8 wt % of a polyol component including at least one polyether polyol, from 0.1 wt % to 50.0 wt % of an additive component including at least one catalyst, and from 0.1 wt % to 6.0 wt % of a preformed aqueous polymer dispersion. The preformed aqueous polymer dispersion has a solids content from 10 wt % to 80 wt %, based on the total weight of the preformed aqueous polymer dispersion, and is one of an aqueous acid polymer dispersion or an aqueous acid modified polyolefin polymer dispersion in which the polyolefin is derived from at least one C2 to C20 alpha-olefin.Type: GrantFiled: December 15, 2015Date of Patent: April 21, 2020Assignees: Dow Global Technologies LLC, Rohm and Haas CompanyInventors: Kaoru Aou, Joseph Jacobs, Qinghao Meng, Paul Cookson
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Publication number: 20200017760Abstract: 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.Type: ApplicationFiled: March 21, 2018Publication date: January 16, 2020Inventors: Sachit Goyal, Arjun Raghuraman, Kaoru Aou, Juan Carlos Medina, Lenin Petroff, James Young, JR.
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Patent number: 10450401Abstract: A reaction system for forming a polyurethane foam includes an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that is a mixture formed by adding at least a polyol component, an additive component, and a preformed aqueous polymer dispersion. The mixture includes, based on the total weight of the mixture, from 50.0 wt % to 99.8 wt % of a polyol component including at least one polyether polyol, from 0.1 wt % to 50.0 wt % of an additive component including at least one catalyst, and from 0.1 wt % to 6.0 wt % of a preformed aqueous polymer dispersion. The preformed aqueous polymer dispersion has a solids content from 10 wt % to 80 wt %, based on the total weight of the preformed aqueous polymer dispersion, and is one of an aqueous acid polymer dispersion or an aqueous acid modified polyolefin polymer dispersion in which the polyolefin is derived from at least one C2 to C20 alpha-olefin.Type: GrantFiled: December 15, 2015Date of Patent: October 22, 2019Assignees: Dow Global Technologies LLC, Rohm and Haas CompanyInventors: Kaoru Aou, Joseph Jacobs, Christopher Thiede
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Publication number: 20190248951Abstract: A reaction system for forming a viscoelastic polyurethane foam includes an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that is a mixture formed by adding at least a polyol component, an additive component, and a preformed aqueous polymer dispersion. The mixture includes, based on the total weight of the mixture, from 50.0 wt % to 99.8 wt % of a polyol component including at least one polyether polyol, from 0.1 wt % to 50.0 wt % of an additive component including at least one catalyst, and from 0.1 wt % to 6.0 wt % of a preformed aqueous polymer dispersion. The preformed aqueous polymer dispersion has a solids content from 10 wt % to 80 wt %, based on the total weight of the preformed aqueous polymer dispersion, and is one of an aqueous acid polymer dispersion or an aqueous acid modified polyolefin polymer dispersion in which the polyolefin is derived from at least one C2 to C20 alpha-olefin.Type: ApplicationFiled: April 29, 2019Publication date: August 15, 2019Inventors: Kaoru Aou, Joseph Jacobs, Qinghao Meng, Paul Cookson
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Publication number: 20190211171Abstract: A coated viscoelastic polyurethane foam includes a viscoelastic polyurethane foam having the coating thereon, the viscoelastic polyurethane foam having a resiliency of less than or equal to 20% as measured according to ASTM D3574, and a coating material on and embedded within the viscoelastic polyurethane foam, the coating material including an aqueous polymer emulsion and an encapsulated phase change material.Type: ApplicationFiled: June 1, 2017Publication date: July 11, 2019Inventors: Kaoru Aou, Yibei Gu, Rajat Duggal, Yasmin N. Srivastava, Joseph Jacobs, Qinghao Meng, Gregoire Cardoen, Ralph C. Even, Morgan A. Springs
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Patent number: 10294391Abstract: A method for exposing a substrate to water under superatmospheric pressure at a temperature of at least 70° C. includes (a) applying a reaction mixture to a substrate, which reaction mixture has an isocyanate index of at least 10 and includes an aromatic polyisocyanate component, a polyol component having a polyol with a hydroxyl equivalent weight of at least 500, and a catalyst component having an isocyanate trimerization catalyst, and at least partially curing the reaction mixture to form a polyisocyanurate or polyurethane-isocyanurate polymer having a glass transition temperature of at least 80° C., and (b) exposing the substrate and the polyisocyanurate or polyurethane-isocyanurate polymer to water under superatmospheric pressure at a temperature of at least 70° C.Type: GrantFiled: July 9, 2014Date of Patent: May 21, 2019Assignee: Dow Global Technologies LLCInventors: Kaoru Aou, Juan Carlos Medina, Rajesh P. Paradkar, Dwight Latham, Michelle Tipps-Thomas
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Publication number: 20190143635Abstract: A composite cushioning structure comprising: a three dimensional random loop layer comprising a plurality of random loops arranged in a three dimensional orientation formed from a polyolefin polymer; and a viscoelastic polyurethane foam layer having an air flow of at least 6.0 ft3/min as measured according to ASTM D3574, Test G and a resiliency of less than or equal to 20%, as measured according to ASTM D3574 Test H.Type: ApplicationFiled: July 12, 2017Publication date: May 16, 2019Inventors: Kaoru Aou, Ronald Wevers, Viraj K. Shah
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Publication number: 20190119431Abstract: A reaction system for forming a viscoelastic polyurethane foam includes an isocyanate component and an isocyanate-reactive component that includes at least a polyol component, an additive component, and a preformed aqueous polymer dispersant. The mixture includes 50.0 wt % to 99.8 wt % of the polyol component, 0.1 wt % to 49.9 wt % of the additive component, and 0.1 wt % to 6.0 wt % of the preformed aqueous polymer dispersant. The aqueous polymer dispersant has a pH from 6.0 to 12.0 and includes from 5 wt % to 60 wt % of a polymeric component and from 40 wt % to 95 wt % of a fluid medium. The polymeric component includes at least one base polymer derived from 20 wt % to 100 wt % of at least one hydrophilic acid monomer having at least one carbonyl group, phosphate group, phosphonate group, or sulfonyl group, and optionally derived from at least one hydrophobic terminally unsaturated hydrocarbon monomer.Type: ApplicationFiled: June 9, 2016Publication date: April 25, 2019Inventors: Kaoru Aou, Thomas H. Kalantar, Qinghao Meng, John Klier, Antony K. Van Dyk, Gary W. Dombrowski, Joseph Jacobs
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Patent number: 10160892Abstract: Solid compositions made from or coated with a non-melting organic polymer having a main glass transition temperature of at least 65° C., few if any isocyanate groups and a wet aged glass transition temperature of up to 60° C. are self-bonding materials that are useful in a variety of adhesive and molding operations. Under conditions of heat and moisture, these compositions will self-bond. The compositions can be used as adhesive coatings, which are solid and non-tacky and thus can be transported and stored easily under ambient conditions. These compositions are especially useful in applications in which, due to the location and/or orientation of the substrates, liquid or melting materials cannot be applied easily or will run off the substrates.Type: GrantFiled: November 23, 2013Date of Patent: December 25, 2018Assignee: Dow Global Technologies LLCInventors: Kaoru Aou, Dwight D. Latham, Ragat Duggal
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Patent number: 10138417Abstract: Embodiments relate to coated proppants, a method of making the coated proppants, and a method to use coated proppants in fracturing subterranean formations around oil and gas wells to improve oil recovery. The proppants are coated with an oil well treatment agent, specifically, a wax inhibitor and/or a pour point depressant composition.Type: GrantFiled: November 18, 2015Date of Patent: November 27, 2018Assignee: Dow Global Technologies LLCInventors: Stephanie L. Potisek, Kaoru Aou, Juan Carlos Medina
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Publication number: 20180201825Abstract: A coated proppant includes a solid core proppant particle, and a sulfide recovery coating that includes a sulfide capturing agent embedded within a polymer resin matrix. The sulfide capturing agent is a metal oxide.Type: ApplicationFiled: June 23, 2016Publication date: July 19, 2018Inventors: Arjun Raghuraman, Alexander Williamson, Sachit Goyal, Runyu Tan, Juan Carlos Medina, Kaoru Aou
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Publication number: 20180194992Abstract: A coated proppant includes a solid core proppant particle and a heavy metal recovery coating, including heavy metal recovery crystals embedded within a polymer resin matrix. A process for the manufacture of a coated proppant includes providing a solid core proppant particle, and forming on the solid core proppant particle, a heavy metal recovery coating including heavy metal recovery crystals embedded within a polymer resin matrix.Type: ApplicationFiled: June 27, 2016Publication date: July 12, 2018Inventors: Kaoru Aou, Juan Carlos Medina, H. Robert Goltz, Sachit Goyal, Arjun Raghuraman, Fabio Aguirre Vargas, Avery L. Watkins, David A. Reuschle, Ann F. Johnson, Yasmin N. Srivastava
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Publication number: 20180187820Abstract: A contaminant capturing liner includes a cured product of a composition including an epoxy resin component including at least one alkanolamine modified epoxy resin and at least one hardener. The contaminant capturing liner includes at least one contaminant capturing material embedded therewithin, and the contaminant capturing liner is a permeable layer having a difference between dry glass transition temperature and wet glass transition temperature of at least 14 C.Type: ApplicationFiled: June 21, 2016Publication date: July 5, 2018Inventors: Fabio Aguirre Vargas, John Klier, William A. Koonce, Juan Carlos Medina, Nathan Wilmot, Kaoru Aou, Sachit Goyal
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Publication number: 20180186098Abstract: A fiber-reinforced composite article useful for contaminant removal comprising at least one single layer of a fiber-reinforced composite having (a) at least one first polymer fiber-free region containing material adapted for removing contaminants, (b) at least one second polymer fiber-rich region containing fiber reinforcement material; and (c) at least one third polymer boundary region containing a portion of the first polymer fiber-free region and a portion of the second polymer fiber-rich region; a process for manufacturing the fiber-reinforced composite article; and a process for removing contaminants from a liquid fluid using the fiber-reinforced composite article.Type: ApplicationFiled: June 21, 2016Publication date: July 5, 2018Inventors: Kevin J. Meyer, Kaoru Aou, Juan Carlos Medina, Douglas L. Potts
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Publication number: 20180072941Abstract: A coated proppant includes a solid core proppant particle, a first resin coating, and a second coating on the first resin coating. The second coating includes the reaction product of one or more curatives and one or more preformed aliphatic or cycloaliphatic based isocyanurate tri-isocyanates, derived from aliphatic diisocyanates, cycloaliphatic diisocyanates, or a combination of aliphatic and cycloaliphatic diisocyanates.Type: ApplicationFiled: March 22, 2016Publication date: March 15, 2018Inventors: Sachit Goyal, Kaoru Aou, Juan Carlos Medina, Arjun Raghuraman, Armin Hassanzadeh
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Publication number: 20170362375Abstract: A reaction system for forming a viscoelastic polyurethane foam includes an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that is a mixture formed by adding at least a polyol component, an additive component, and a preformed aqueous polymer dispersion. The mixture includes, based on the total weight of the mixture, from 50.0 wt % to 99.8 wt % of a polyol component including at least one polyether polyol, from 0.1 wt % to 50.0 wt % of an additive component including at least one catalyst, and from 0.1 wt % to 6.0 wt % of a preformed aqueous polymer dispersion. The preformed aqueous polymer dispersion has a solids content from 10 wt % to 80 wt %, based on the total weight of the preformed aqueous polymer dispersion, and is one of an aqueous acid polymer dispersion or an aqueous acid modified polyolefin polymer dispersion in which the polyolefin is derived from at least one C2 to C20 alpha-olefin.Type: ApplicationFiled: December 15, 2015Publication date: December 21, 2017Applicants: Dow Global Technologies LLC, Rohm and Haas CompanyInventors: Kaoru Aou, Joseph Jacobs, Qinghao Meng, Paul Cookson
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Patent number: 9840576Abstract: Solid, non-melting polyurethanes having a glass transition temperature of at least 40° C. and free isocyanate groups are self-bonding materials that are useful in a variety of adhesive and molding operations. Under conditions of heat and moisture, these polyurethanes will self-bond. The polyurethanes can be used as adhesive coatings, which are solid and non-tacky and thus can be transported and stored easily under ambient conditions. These polyurethane adhesives are especially useful in applications in which, due to the location and/or orientation of the substrates, liquid or melting materials cannot be applied easily or will run off the substrates.Type: GrantFiled: November 23, 2013Date of Patent: December 12, 2017Assignee: Dow Global Technologies LLCInventors: Kaoru Aou, Dwight D. Latham, Juan Carlos Medina
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Patent number: 9840604Abstract: The present disclosure is directed to a composition and articles containing the composition. The composition comprises a foam and a plurality of gel particles dispersed in the foam. The gel particles comprise an olefin block copolymer and an oil.Type: GrantFiled: October 10, 2016Date of Patent: December 12, 2017Assignee: DOW GLOBAL TECHNOLOGIES LLCInventors: Jeffrey C. Munro, Kaoru Aou, Raymond L. Laakso, Jr., Gary R. Marchand, Rogelio R. Gamboa