Patents by Inventor Karthikeyan Sivasubramanian

Karthikeyan Sivasubramanian 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: 20230257528
    Abstract: A surface treating composition is shown and described herein. A surface treating composition comprises (i) a hybrid siloxane oligomer comprises organosilicon units wherein the oligomer comprises organosilicon units with fluoro-functional groups, and organosilicon units with other reactive functionality, and (ii) a perfluoro(poly)ether group containing silane compound. The surface treating composition can be employed to provide a hydrophobic and/or oleophobic surface coating on a surface of a substrate, which may impart other beneficial properties to the article.
    Type: Application
    Filed: July 1, 2021
    Publication date: August 17, 2023
    Inventors: Hisashi MITSUHASHI, Takashi NOMURA, Motoshi MATSUI, Noriaki FUKUDA, Raghavendra HEBBAR, Hao SHEN, Banpreet KAUR, Karthikeyan SIVASUBRAMANIAN, Shreedhar BHAT
  • Publication number: 20230257527
    Abstract: A hybrid siloxane oligomer is shown and described herein. A hybrid siloxane oligomer comprises organosilicon units wherein the oligomer comprises organosilicon units with fluoro-functional groups, and organosilicon units with other reactive functionality. The oligomers can be employed to form a coating on a surface of an article to provide a hydrophobic and/or oleophobic surface coating, which may impart other beneficial properties to the article.
    Type: Application
    Filed: July 1, 2021
    Publication date: August 17, 2023
    Inventors: Raghavendra HEBBAR, Hao SHEN, Banpreet KAUR, Karthikeyan SIVASUBRAMANIAN, Shreedhar BHAT
  • Patent number: 10650938
    Abstract: A silicone polyether for use in forming a solid polymer electrolyte film, the silicone polyether comprising a heterocyclic moiety. The silicone polyether comprising the heterocyclic moiety may be used to provide an electrolyte composition suitable for use in an electrochemical device. The silicone polyether comprising a heterocyclic moiety may also be used to form a solid polymer electrolyte that may be used to form a solid polymer electrolyte film, which may be suitable for use in electrochemical devices.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 12, 2020
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Karthikeyan Sivasubramanian, Neeraj Gupta
  • Patent number: 10294332
    Abstract: A functionalized siloxane network. The functionalized network comprises a ligand attached to the network. The ligand includes a pyridine-containing compound, and in one embodiment, the ligand includes a terpyridine compound. The functionalized siloxane network can be siloxane particles. The functionalized siloxane network can coordinate metal ions and can be used in luminescent articles.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: May 21, 2019
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Karthikeyan Sivasubramanian, Vivek Khare
  • Patent number: 10287398
    Abstract: A functionalized siloxane includes a ligand capable of coordinating a metal. The functionalized siloxane includes a pyridine-containing ligand attached to a siloxane polymer. The functionalized siloxanes can be employed to provide complexes including a metal that may impart a desired property to the polymer. In one embodiment, the polymer can complex lanthanide metals that are capable of phosphorescing upon exposure to UV irradiation. Such polymers can be employed to provide functional materials such as, for example, luminescent films, coatings, etc.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: May 14, 2019
    Assignee: Momentive Performance Materials Inc.
    Inventors: Karthikeyan Sivasubramanian, Vivek Khare
  • Publication number: 20190006715
    Abstract: A silicone polyether for use in forming a solid polymer electrolyte film, the silicone polyether comprising a heterocyclic moiety. The silicone polyether comprising the heterocyclic moiety may be used to provide an electrolyte composition suitable for use in an electrochemical device. The silicone polyether comprising a heterocyclic moiety may also be used to form a solid polymer electrolyte that may be used to form a solid polymer electrolyte film, which may be suitable for use in electrochemical devices.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 3, 2019
    Inventors: Karthikeyan SIVASUBRAMANIAN, Neeraj GUPTA
  • Publication number: 20180148600
    Abstract: The present technology provides a coating system including a curable silicone polymer and a catalyst, wherein the catalyst is selected from a super base, a salt of a super base, or a combination of two or more thereof.
    Type: Application
    Filed: June 27, 2017
    Publication date: May 31, 2018
    Inventors: Karthikeyan Murugesan, Karthikeyan Sivasubramanian, Indumathi Ramakrishnan, Sumi Dinkar, Vivek Khare, Robert Hayes
  • Patent number: 9923243
    Abstract: The present invention relates to silicone epoxy compositions, methods for making same and uses therefore. In one embodiment, the silicone epoxy ether compositions of the present invention are silane epoxy polyethers that contain at least one epoxy functionality. In another embodiment, the silicone epoxy ether compositions of the present invention are siloxane epoxy polyethers that contain at least one epoxy functionality. In still another embodiment, the present invention relates to silicone epoxy polyether compositions that are suitable for use as an electrolyte solvent in a lithium-based battery, an electrochemical super-capacitors or any other electrochemical device.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: March 20, 2018
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Neeraj Gupta, Karthikeyan Sivasubramanian, Monjit Phukan
  • Patent number: 9901912
    Abstract: There is provided herein a composition which contains hydride-functionalized siloxane or silane, a hydroxyl-containing compound that does not contain silicon, and a catalytically-effective amount of super acid or super base catalyst selected from the group consisting of a triaza-containing compound which contains only carbon, nitrogen and hydrogen atoms, an atrane compound, a linear or branched compound containing a sulfonyl group and a fluoro group, and combinations thereof. There is also provided a process of making such a composition.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: February 27, 2018
    Assignee: Momentive Performance Materials Inc.
    Inventors: Karthikeyan Sivasubramanian, Vivek P. Khare
  • Publication number: 20180016401
    Abstract: A functionalized siloxane network. The functionalized network comprises a ligand attached to the network. The ligand includes a pyridine-containing compound, and in one embodiment, the ligand includes a terpyridine compound. The functionalized siloxane network can be siloxane particles. The functionalized siloxane network can coordinate metal ions and can be used in luminescent articles.
    Type: Application
    Filed: December 29, 2015
    Publication date: January 18, 2018
    Inventors: Karthikeyan SIVASUBRAMANIAN, Vivek Khare
  • Publication number: 20170369715
    Abstract: The present technology provides a coating system including a luminophoric material. The luminophoric material is a pyridine-containing ligand chosen from a substituted or unsubstituted bidentate pyridine compound, a substituted or unsubstituted tridentate pyridine compound, or a combination of two or more thereof. Alternatively, the luminophoric material may be a fluorescent dye. The coating system may include a topcoat material, a primer material, or a combination thereof.
    Type: Application
    Filed: December 29, 2015
    Publication date: December 28, 2017
    Inventors: Karthikeyan MURUGESAN, Karthikeyan SIVASUBRAMANIAN, Indumathi RAMAKRISHNAN, Vivek KHARE
  • Publication number: 20170362392
    Abstract: A functionalized siloxane includes a ligand capable of coordinating a metal. The functionalized siloxane includes a pyridine-containing ligand attached to a siloxane polymer. The functionalized siloxanes can be employed to provide complexes including a metal that may impart a desired property to the polymer. In one embodiment, the polymer can complex lanthanide metals that are capable of phosphorescing upon exposure to UV irradiation. Such polymers can be employed to provide functional materials such as, for example, luminescent films, coatings, etc.
    Type: Application
    Filed: December 29, 2015
    Publication date: December 21, 2017
    Inventors: Karthikeyan SIVASUBRAMANIAN, Vivek Khare
  • Patent number: 9751987
    Abstract: The present technology provides compositions, methods, and processes to form polysiloxanes. In one aspect, the present technology provides a process for the ring opening polymerization of a cyclosiloxane comprising contacting a cyclosiloxane with a N-trialkylsilyl-bis(perfluoroalkylsulfonyl)imide compound.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: September 5, 2017
    Assignee: Momentive Performance Materials Inc.
    Inventors: Karthikeyan Sivasubramanian, Patricia Pike Anderson, Vivek Khare
  • Patent number: 9683083
    Abstract: The present technology provides compositions, methods, and processes to form polysiloxanes. In one aspect, the present technology provides a process for the ring opening polymerization of a cyclosiloxane comprising contacting a cyclosiloxane with a bicyclic guanidine compound. The guanidine-containing compounds useful in the ring opening reaction include a fused ring structure comprising a guanidine functional group as part of the fused ring.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: June 20, 2017
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Karthikeyan Sivasubramanian, Patricia Pike Anderson, Vivek Khare
  • Patent number: 9663620
    Abstract: Compositions and methods for the production of siloxane materials using an azaphosphatrane as a catalyst. In one embodiment, there is provided a process for the ring opening polymerization of a cyclosiloxane in the presence of an azaphosphatrane. In another embodiment, there is provided a composition and method for condensation curing of a moisture curable composition using an azaphosphatrane.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: May 30, 2017
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Karthikeyan Sivasubramanian, Patricia Anderson
  • Publication number: 20160354769
    Abstract: There is provided herein a composition which contains hydride-functionalized siloxane or silane, a hydroxyl-containing compound that does not contain silicon, and a catalytically-effective amount of super acid or super base catalyst selected from the group consisting of a triaza-containing compound which contains only carbon, nitrogen and hydrogen atoms, an atrane compound, a linear or branched compound containing a sulfonyl group and a fluoro group, and combinations thereof. There is also provided a process of making such a composition.
    Type: Application
    Filed: June 1, 2016
    Publication date: December 8, 2016
    Inventors: Karthikeyan Sivasubramanian, Vivek P. Khare
  • Publication number: 20160355643
    Abstract: The present technology provides compositions, methods, and processes to form polysiloxanes. In one aspect, the present technology provides a process for the ring opening polymerization of a cyclosiloxane comprising contacting a cyclosiloxane with a N-trialkylsilyl-bis(perfluoroalkylsulfonyl)imide compound.
    Type: Application
    Filed: August 18, 2014
    Publication date: December 8, 2016
    Inventors: Karthikeyan SIVASUBRAMANIAN, Patricia Pike ANDERSON, Vivek KHARE
  • Publication number: 20160347910
    Abstract: Compositions and methods for the production of siloxane materials using an azaphosphatrane as a catalyst. In one embodiment, there is provided a process for the ring opening polymerization of a cyclosiloxane in the presence of an azaphosphatrane. In another embodiment, there is provided a composition and method for condensation curing of a moisture curable composition using an azaphosphatrane.
    Type: Application
    Filed: May 16, 2014
    Publication date: December 1, 2016
    Applicant: Momentive Performance Materials Inc.
    Inventors: Karthikeyan SIVASUBRAMANIAN, Patricia ANDERSON
  • Publication number: 20160215097
    Abstract: The present technology provides compositions, methods, and processes to form polysiloxanes. In one aspect, the present technology provides a process for the ring opening polymerization of a cyclosiloxane comprising contacting a cyclosiloxane with a bicyclic guanidine compound. The guanidine-containing compounds useful in the ring opening reaction include a fused ring structure comprising a guanidine functional group as part of the fused ring.
    Type: Application
    Filed: August 18, 2014
    Publication date: July 28, 2016
    Inventors: Karthikeyan SIVASUBRAMANIAN, Patricia Pike ANDERSON, Vivek KHARE
  • Publication number: 20150050560
    Abstract: The present invention relates to silicone epoxy compositions, methods for making same and uses therefore. In one embodiment, the silicone epoxy ether compositions of the present invention are silane epoxy polyethers that contain at least one epoxy functionality. In another embodiment, the silicone epoxy ether compositions of the present invention are siloxane epoxy polyethers that contain at least one epoxy functionality. In still another embodiment, the present invention relates to silicone epoxy polyether compositions that are suitable for use as an electrolyte solvent in a lithium-based battery, an electrochemical super-capacitors or any other electrochemical device.
    Type: Application
    Filed: January 10, 2013
    Publication date: February 19, 2015
    Inventors: Neeraj Gupta, Karthikeyan Sivasubramanian, Monjit Phukan