Patents by Inventor Sumi Dinkar

Sumi Dinkar 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: 20240023784
    Abstract: Articles and methods regarding abrasive articles that include antimicrobial properties and improved abrasive performance and comprise a first fiber element comprising a woven or non-woven material; and a second fiber element comprising metal, wherein the second fiber element comprises at least one self-interlocking arrangement.
    Type: Application
    Filed: September 2, 2022
    Publication date: January 25, 2024
    Inventors: Sumi DINKAR, Manisha MOHAPATRA, Abdul Habid PULLICHOLA, Rishwanth SATHYAMURTHY, Ramesh NIVARTHI
  • Patent number: 11814484
    Abstract: Composition of comprising nano metal oxide/hydroxide particles and a polyorganosiloxane having increased refractive index, processes to cure these compositions for making transparent coats, shaped articles by an extrusion or molding process having a refractive index above the refractive index of the polyorganosiloxane. Use of the cured polyorganosiloxane compositions as optical devices, coats, lenses or light guides.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: November 14, 2023
    Inventors: Thorsten Felder, Monika Friedrichs, Gunnar Hoffmüller, Abirami Srikanth, Douglas Dukes, Sumi Dinkar, Roland Wagner, Karl Heinz Stachulla
  • Publication number: 20220057113
    Abstract: A bearing assembly for a tracker assembly of a power generation structure including an adaptor configured to be fixed to and rotatable with a rail; and a housing adapted to support the adaptor, where the adaptor is configured to rotate relative to the housing, and where a low friction material is present at an interface between an exterior surface of adaptor and an interior surface of housing.
    Type: Application
    Filed: December 22, 2019
    Publication date: February 24, 2022
    Inventors: Akhilesan SASIDHARAN, Sasi Kiran TALLAM, Sumi DINKAR, Lukas PLIOSKA, Juan VAYA VALCARCE
  • Publication number: 20220002492
    Abstract: Composition of comprising nano metal oxide/hydroxide particles and a polyorganosiloxane having increased refractive index, processes to cure these compositions for making transparent coats, shaped articles by an extrusion or molding process having a refractive index above the refractive index of the polyorganosiloxane. Use of the cured polyorganosiloxane compositions as optical devices, coats, lenses or light guides.
    Type: Application
    Filed: May 24, 2021
    Publication date: January 6, 2022
    Inventors: Thorsten Felder, Monika Friedrichs, Gunnar Hoffmüller, Abirami Srikanth, Douglas Dukes, Sumi Dinkar, Roland Wagner, Karl Heinz Stachulla
  • Publication number: 20210213702
    Abstract: A nonwoven article includes a nonwoven substrate having from a lofty, open web of fibers formed through a needling process. The nonwoven substrate is coated with at least one coating to provide improved performance characteristics including loft, elongation, tensile strength, stiffness, pore size, permeability, fiber orientation index, and combinations thereof.
    Type: Application
    Filed: December 14, 2020
    Publication date: July 15, 2021
    Inventors: Vinayak OGALE, Veeraraghavan SRINIVASAN, Manisha MOHAPATRA, Mitul D. ZAVERI, Sumi DINKAR, Brahmanandam V. TANIKELLA
  • Patent number: 11015024
    Abstract: Composition of comprising nano metal oxide/hydroxide particles and a polyorganosiloxane having increased refractive index, processes to cure these compositions for making transparent coats, shaped articles by an extrusion or molding process having a refractive index above the refractive index of the polyorganosiloxane. Use of the cured polyorganosiloxane compositions as optical devices, coats, lenses or light guides.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: May 25, 2021
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Thorsten Felder, Monika Friedrichs, Gunnar Hoffmüller, Abirami Srikanth, Douglas Dukes, Sumi Dinkar, Roland Wagner, Karl Heinz Stachulla
  • Patent number: 10457819
    Abstract: There is provided herein an elastomeric coating composition containing (a) at least one condensation polymerization-effective polymer bearing two or more silicon atoms; (b) a surface wetting agent, (c) a filler; (d) a condensation catalyst; and, (e) optionally, one or more crosslinking agents. There are also provided architectural coatings including the same, as well as single coat anti-dirt, and/or anti-stain, and/or anti-fouling coatings including the same.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: October 29, 2019
    Assignee: Momentive Performance Materials Inc.
    Inventors: Mayank Dubey, Anubhay Saxena, Indumathi Ramakrishnan, Sumi Dinkar
  • Patent number: 10174169
    Abstract: The present invention provides curable compositions comprising non-tin metal accelerators that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present invention provides an accelerator comprising metal-arene complexes that are suitable as replacements for organotin in sealant and RTV formulations.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: January 8, 2019
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Christopher Michael Byrne, Anantharaman Dhanabalan, Sumi Dinkar, George Samuels
  • Publication number: 20180208718
    Abstract: Composition of comprising nano metal oxide/hydroxide particles and a polyorganosiloxane having increased refractive index, processes to cure these compositions for making transparent coats, shaped articles by an extrusion or molding process having a refractive index above the refractive index of the polyorganosiloxane. Use of the cured polyorganosiloxane compositions as optical devices, coats, lenses or light guides.
    Type: Application
    Filed: July 20, 2016
    Publication date: July 26, 2018
    Inventors: Thorsten FELDER, Monika FRIEDRICHS, Gunnar HOFFMÜLLER, Abirami SRIKANTH, Douglas DUKES, Sumi DINKAR, Roland WAGNER, Karl Heinz STACHULLA
  • Patent number: 10023699
    Abstract: There is provided herein a curable polysiloxane composition comprising a reactive polysiloxane having the general structural formula (I): as described herein. There is provided a method of making the polysiloxane. In addition, there is provided a curable composition including the polysiloxane.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: July 17, 2018
    Assignee: Momentive Performance Materials, Inc.
    Inventors: Anuj Mittal, Raveendra Mathad, Sumi Dinkar, Indumathi Ramakrishnan, Manav 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
  • Publication number: 20180002492
    Abstract: There is provided herein a curable polysiloxane composition comprising a reactive polysiloxane having the general structural formula (I): as described herein. There is provided a method of making the polysiloxane. In addition, there is provided a curable composition including the polysiloxane.
    Type: Application
    Filed: August 15, 2017
    Publication date: January 4, 2018
    Inventors: Anuj Mittal, Raveendra Mathad, Sumi Dinkar, lndumathi Ramakrishnan, Manav Gupta
  • Publication number: 20170306096
    Abstract: The present invention provides moisture-curable compositions comprising an amino ester catalyst as an alternative to organotin catalysts. In particular, the present invention provides a condensation catalyst comprising a secondary amine, a tertiary amine, a substituted amine (e.g., an amino ester compound), or a combination of two or more thereof and optionally one or more aminosilanes or siloxanes. Further, the compositions employing amino esters allow for tuning or adjusting the cure characteristics of the compositions by the addition of other components such as adhesion promoters or acidic compounds, and provides good adhesion and storage stability.
    Type: Application
    Filed: November 20, 2015
    Publication date: October 26, 2017
    Inventors: Ramesh MUTHUSAMY, Sumi DINKAR, Anantharaman DHANABALAN
  • Patent number: 9771459
    Abstract: There is provided herein a curable polysiloxane composition comprising a reactive polysiloxane having the general structural formula (I): as described herein. There is provided a method of making the polysiloxane. In addition there is provided a curable composition including the polysiloxane.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: September 26, 2017
    Assignee: Momentive Performance Materials Inc.
    Inventors: Anuj Mittal, Raveendra Mathad, Sumi Dinkar, Indumathi Ramakrishnan, Manav Gupta
  • Publication number: 20170260335
    Abstract: The present invention provides curable compositions comprising non-tin metal accelerators that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present invention provides an accelerator comprising metal-arene complexes that are suitable as replacements for organotin in sealant and RTV formulations.
    Type: Application
    Filed: November 26, 2014
    Publication date: September 14, 2017
    Inventors: Christopher Michael BYRNE, Anantharaman DHANABALAN, Sumi DINKAR, George SAMUELS
  • Publication number: 20170210913
    Abstract: There is provided herein an elastomeric coating composition containing (a) at least one condensation polymerization-effective polymer bearing two or more silicon atoms; (b) a surface wetting agent, (c) a filler; (d) a condensation catalyst; and, (e) optionally, one or more crosslinking agents. There are also provided architectural coatings including the same, as well as single coat anti-dirt, and/or anti-stain, and/or anti-fouling coatings including the same.
    Type: Application
    Filed: January 25, 2017
    Publication date: July 27, 2017
    Inventors: Mayank Dubey, Anubhay Saxena, Indumathi Ramakrishnan, Sumi Dinkar
  • Publication number: 20170174840
    Abstract: The present invention provides curable compositions comprising (A) an polymer having a reactive silicon-containing group, (B) a cross-linker and/or a chain extender, (C) a non-tin metal catalyst, (D) an adhesion promoter, (E) optionally a filler, (F) optionally cure accelerator. The above curable compositions exhibit excellent adhesiveness, deep section cure, stable curability even after storage and/or retained physical properties even after subjecting to the accelerated humidity and temperatures.
    Type: Application
    Filed: February 3, 2015
    Publication date: June 22, 2017
    Inventor: Sumi Dinkar
  • Patent number: 9663657
    Abstract: The present invention provides curable compositions that are substantially free of metal catalysts including both tin and non-tin metal catalysts. The curable compositions employ a catalyst system comprising the combination of a carboxylic acid, an amino-containing adhesion promoter or a mixture of amine-containing adhesion promoters and an amino-containing siloxane. The combination of these materials accelerates the condensation curing of moisture curable silicones/non-silicones even in the absence of a metal-based catalyst.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: May 30, 2017
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Sumi Dinkar, Anantharaman Dhanabalan
  • Patent number: 9605113
    Abstract: The present invention provides curable compositions that are free of metal catalysts including both tin and non-tin metal catalysts. The curable compositions employ a catalyst comprising curable polymers having reactive terminal silyl groups. In particular, a silylated carboxylic acid is an alternative to organotin or other metal catalysts. In addition, the catalyst may be used with an amino-containing adhesion promoter or a mixture of amine-containing adhesion promoters and an amino-containing siloxane. The combination of these materials accelerates the condensation curing of moisture curable silicones/non-silicones even in the absence of a metal-based catalyst.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: March 28, 2017
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Mihirkumar Maheshbai Patel, Anantharaman Dhanabalan, Sumi Dinkar, Alok Sarkar
  • Publication number: 20160369061
    Abstract: The present invention provides curable compositions comprising non-tin metal accelerators that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present invention provides an accelerator comprising amide compounds that are particularly suitable as replacements for organotin in sealant and RTV formulations. Further, the compositions employing an amide compound is comparable or superior to organotin such as DBTDL, exhibits certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the compositions, and provides good adhesion and storage stability.
    Type: Application
    Filed: July 2, 2014
    Publication date: December 22, 2016
    Inventor: Sumi DINKAR