Patents by Inventor Yasmin N. Srivastava

Yasmin N. Srivastava 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).

  • Publication number: 20240043644
    Abstract: 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: Application
    Filed: October 6, 2023
    Publication date: February 8, 2024
    Inventors: Kaoru Aou, Yibei Gu, Rajat Duggal, Yasmin N. Srivastava, Joseph Jacobs, Qinghao Meng, Gregoire Cardoen, Ralph C. Even, Morgan A. Springs
  • Patent number: 11814466
    Abstract: Hydrophilic polyurethane foam is made from a diphenylmethane-based quasi-prepolymer having specified isocyanate and oxyethylene contents. The foams have an unusually good capacity for retaining water even when under compressive forces. They also exhibit at most moderate swelling when saturated with water. The foam is useful as a layer of a water containment system such as a green roof or blue roof system.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 14, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Cody Schoener, Yasmin N. Srivastava
  • Publication number: 20230114154
    Abstract: Sponges for cosmetic and/or medicinal applications are coated with a surface coating. The surface coating contains an elastomeric, non-silicone polymer, a certain silicone polymer, an encapsulated phase change material and optionally ceramic particles. The coated sponges have desirable haptic properties and efficiently absorb and release make-up and medicines for application to the skin.
    Type: Application
    Filed: January 27, 2021
    Publication date: April 13, 2023
    Inventors: Yasmin N. Srivastava, Cody Schoener, Yihan Liu
  • Publication number: 20230047989
    Abstract: Articles useful for bedding and other comfort applications include a coated polyurethane foam. The coating includes an elastomeric polymer, a phase change material and ceramic particles. The coating provides desirable haptic properties, including a cool touch feature that creates a sensation of coolness when touched.
    Type: Application
    Filed: January 27, 2021
    Publication date: February 16, 2023
    Inventors: Yasmin N. Srivastava, Xindi Yu, Irfan Khan, Rogelio Gamboa, Saul Garcia
  • Patent number: 11279837
    Abstract: A composition comprising a colored synthetic gel useful for the preparation of waterborne multicolor paints.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: March 22, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Minbiao Hu, Shiling Zhang, Wei Li, Dong Yun, Huan Chen, Yasmin N. Srivastava
  • Publication number: 20220033564
    Abstract: Hydrophilic polyurethane foam is made from a diphenylmethane-based quasi-prepolymer having specified isocyanate and oxyethylene contents. The foams have an unusually good capacity for retaining water even when under compressive forces. They also exhibit at most moderate swelling when saturated with water. The foam is useful as a layer of a water containment system such as a green roof or blue roof system.
    Type: Application
    Filed: September 17, 2019
    Publication date: February 3, 2022
    Inventors: Cody Schoener, Yasmin N. Srivastava
  • Publication number: 20210347988
    Abstract: Hydrophilic composite structures are made by impregnating a 3DL structure with a polyurethane foam formulation and curing the formulation to produce a foam that occupies the spaces in the 3DL structure. The composite structures have an unusually good capacity for retaining water even when under compressive forces. They also exhibit at most moderate swelling when saturated with water. The foam is useful as a layer of a water containment system such as a green roof or blue roof system.
    Type: Application
    Filed: September 17, 2019
    Publication date: November 11, 2021
    Inventors: Cody Schoener, Yasmin N. Srivastava, Viraj K. Shah
  • Publication number: 20210206937
    Abstract: 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: Application
    Filed: January 15, 2021
    Publication date: July 8, 2021
    Inventors: Kaoru Aou, Yibei Gu, Rajat Duggal, Yasmin N. Srivastava, Joseph Jacobs, Qinghao Meng, Gregoire Cardoen, Ralph C. Even, Morgan A. Springs
  • Patent number: 10752830
    Abstract: 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: Grant
    Filed: June 27, 2016
    Date of Patent: August 25, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: 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
  • Publication number: 20200229360
    Abstract: A horticultural growth medium includes a filler and a binder. The binder is a moisture-cured, isocyanate-terminated quasi-prepolymer made from an organic polyisocyanate that includes a large proportion of 4,4?-diphenylmethane diisocyanate. This binder system provides excellent curing properties and imparts excellent physical properties to the growth medium.
    Type: Application
    Filed: September 22, 2018
    Publication date: July 23, 2020
    Inventors: Cody Schoener, Yasmin N. Srivastava
  • Publication number: 20200095435
    Abstract: A composition comprising a colored synthetic gel useful for the preparation of waterborne multicolor paints.
    Type: Application
    Filed: December 20, 2016
    Publication date: March 26, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Minbiao Hu, Shiling Zhang, Wei Li, Dong Yun, Huan Chen, Yasmin N. Srivastava
  • Patent number: 10490318
    Abstract: Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent, which is selected from one or more of a group of three specific triazine compounds. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: November 26, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Yasmin N. Srivastava, Xuming Chen, Timothy J. Person
  • Patent number: 10435500
    Abstract: A polyurethane gel for comfort applications includes a reaction product of a composition that includes (1) from 5 wt % to 35 wt % of a prepolymer component, based on a total weight of the composition, the prepolymer component including a reaction product of an isocyanate component that includes diphenylemethane diisocyanate (MDI) and a polyol component that includes a polyoxyethylene-polyoxypropylene polyol that has an polyoxyethylene content greater than 65 wt %, based on a total weight of the polyoxyethylene polyoxypropylene polyol, and (2) a remainder of a prepolymer-reactive component that includes an amine-terminated polyol and a propylene oxide-ethylene oxide based monol or polyol. The composition excludes any plasticizers.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: October 8, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Yasmin N. Srivastava, Rogelio Gamboa
  • Publication number: 20190211171
    Abstract: 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: Application
    Filed: June 1, 2017
    Publication date: July 11, 2019
    Inventors: Kaoru Aou, Yibei Gu, Rajat Duggal, Yasmin N. Srivastava, Joseph Jacobs, Qinghao Meng, Gregoire Cardoen, Ralph C. Even, Morgan A. Springs
  • Publication number: 20180194992
    Abstract: 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: Application
    Filed: June 27, 2016
    Publication date: July 12, 2018
    Inventors: 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
  • Patent number: 9840575
    Abstract: A polyurethane foam for comfort application, includes the reaction product of a first composition that includes from 20 wt % to 80 wt % of an aqueous component and from 20 wt % to 80 wt % of a hydrophilic isocyanate-terminated prepolymer component. The aqueous component includes at least 90 wt % of water based on the total weight of the aqueous component and the hydrophilic isocyanate-terminated prepolymer component has a free NCO content from 1 wt % to 15 wt % and is a reaction product of a second composition that includes an isocyanate component and an isocyanate-reactive component.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: December 12, 2017
    Inventors: Yasmin N. Srivastava, Rogelio Gamboa, Rajat Duggal
  • Publication number: 20170260316
    Abstract: A polyurethane foam for comfort application, includes the reaction product of a first composition that includes from 20 wt % to 80 wt % of an aqueous component and from 20 wt % to 80 wt % of a hydrophilic isocyanate-terminated prepolymer component. The aqueous component includes at least 90 wt % of water based on the total weight of the aqueous component and the hydrophilic isocyanate-terminated prepolymer component has a free NCO content from 1 wt % to 15 wt % and is a reaction product of a second composition that includes an isocyanate component and an isocyanate-reactive component.
    Type: Application
    Filed: October 26, 2015
    Publication date: September 14, 2017
    Inventors: Yasmin N. Srivastava, Rogelio Gamboa, Rajat Duggal
  • Patent number: 9682225
    Abstract: Bioelectrodes, methods of making bioelectrodes and methods of using bioelectrodes are provided. The bioelectrodes have an electrically-conductive substrate coated with an electroconductive polymer. The bioelectrode exhibits ohmic behavior over a range of about 1 Hz to about 100 KHz, where ohmic behavior means that the value of the impedance is independent of the signal frequency over the range of interest. The bioelectrode can transmit or receive an electrical signal between the electrically conductive substrate and the biological component through the conductive polymer.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: June 20, 2017
    Assignee: Georgetown University
    Inventors: Judith F. Rubinson, Yohani P. Kayinamura, Anthony D. Kammerich, Yasmin N. Srivastava
  • Publication number: 20170166681
    Abstract: A polyurethane gel for comfort applications includes a reaction product of a composition that includes (1) from 5 wt % to 35 wt % of a prepolymer component, based on a total weight of the composition, the prepolymer component including a reac tion product of an isocyanate component that includes diphenylemethane diisocyanate (MDI) and a polyol component that includes a polyoxyethylene-polyoxypropylene polyol that has an polyoxyethylene content greater than 65 wt %, based on a total weight of the polyoxyethylene polyoxypropylene polyol, and (2) a remainder of a prepolymer-reactive component that includes an amine-terminated polyol and a propylene oxide-ethylene oxide based monol or polyol. The composition excludes any plasticizers.
    Type: Application
    Filed: September 2, 2015
    Publication date: June 15, 2017
    Inventors: Yasmin N. Srivastava, Rogelio Gamboa
  • Patent number: 9366964
    Abstract: A composition comprising: A) polymer that comprises: L is CX—CYZ, where X, Y, and Z are independently hydrogen, an alkyl, or a substituted alkyl; and, M is an alkylene, an arylene, a substituted alkylene, a substituted arylene, or C(O)O—W—, where W is an alkylene or a substituted alkylene; and R?, R?, and R?? are independently selected from an aromatic hydrocarbon, an aliphatic hydrocarbon, or a substituted hydrocarbon that comprises one or more of O, N, S, or Si atoms, provided that at least one of R?, R?, and R?? is selected from alkoxyl, aryloxyl, hydroxyl, halide, carboxyl, or carbonate; and, p is from 1 to 10,000; and the polymer does not comprise a polyhedral oligomeric silsesquioxane structure; and B) a polymer formed from a composition comprising at least one Si-containing compound as described herein. Compositions are suitable for microelectronic applications, and have improved adhesion to photoresists polymers.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: June 14, 2016
    Assignees: Dow Global Technologies LLC, Rohm and Haas Electronic Materials LLC
    Inventors: Yuanqiao Rao, Robert L. Auger, Cecilia W. Kiarie, Yasmin N. Srivastava, Christopher P. Sullivan