Patents by Inventor Vikram Kumar

Vikram Kumar 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: 20130296595
    Abstract: A silicone composition comprising a formula: (M1)a(D1)b(D2)c wherein M1=R1R2R3SiO1/2, D1=R4R5SiO2/2; and D2=R6R7SiO2/2; wherein R1 is independently at each occurrence a monovalent hydrocarbon radical comprising a reactive end-group other than an amino group; R6 comprises a monovalent poly(oxyalkyl)hydrocarbon radical; and R2, R3, R4, R5, and R7 are independently monovalent hydrocarbon radicals; wherein a, b, and c are stoichiometric subscripts that are zero or positive subject to the following limitations: a is greater than or equal to 2; c is greater than or equal to 1; and when b=0, a+c is greater than or equal to 3 is disclosed.
    Type: Application
    Filed: July 2, 2013
    Publication date: November 7, 2013
    Inventors: Vikram Kumar, Mark D. Leatherman, Suresh Rajaraman, Anubhav Saxena
  • Publication number: 20130245194
    Abstract: Moisture-curable resin compositions comprising (a) a moisture-curable polymer having at least one hydrolysable silyl group; (b) a reactive modifier; (c) a catalyst for catalyzing the reaction between the moisture-curable polymer (a) and reactive modifier (b) under curing conditions; and cured compositions produced by contacting such resin compositions with water are disclosed. The moisture-curable resin composition is useful in the production of adhesives, including hot melt adhesives, primers, sealants, and coatings.
    Type: Application
    Filed: September 10, 2012
    Publication date: September 19, 2013
    Applicant: Momentive Performance Materials Inc.
    Inventors: Misty Huang, Richard W. Cruse, Benjamin Falk, Eric Pohl, Shiu-Chin Su, Jeries Nesheiwat, Philbert Ramdatt, Thomas Fay-Oy Lim, Vikram Kumar
  • Patent number: 8524934
    Abstract: A silicone composition comprising a formula: (M1)a(D1)b(D2)c wherein M1=R1R2R3SiO1/2; D1=R4R5SiO2/2; and D2=R6R7SiO2/2; wherein R1 is independently at each occurrence a monovalent hydrocarbon radical comprising a reactive end- group other than an amino group; R6 comprises a monovalent poly(oxyalkyl) hydrocarbon radical; and R2, R3, R4, R5, and R7 are independently monovalent hydrocarbon radicals; wherein a, b, and c are stoichiometric subscripts that are zero or positive subject to the following limitations: a is greater than or equal to 2; c is greater than or equal to 1; and when b=0, a+c is greater than or equal to 3 is disclosed.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: September 3, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventors: Vikram Kumar, Mark D. Leatherman, Suresh Rajaraman, Anubhav Saxena
  • Patent number: 8507565
    Abstract: The invention relates to a method for separating emulsions of oil and water, the method comprising incorporating a demulsifying-effective amount of a polyorganosiloxane demulsifier into an emulsion comprising an oil phase and an aqueous phase. The invention also relates to compositions containing polyorganosiloxane demulsifier and the water and oil phases of an emulsion.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: August 13, 2013
    Assignee: Momentive Performance Material Inc.
    Inventors: Anubhav Saxena, Monjit Phukan, Senthilkumar U., Ian Procter, Sigfredo Gonzalez, Kalman Koczo, Sabine Azouani, Vikram Kumar
  • Patent number: 8501856
    Abstract: The invention relates to curable, storage-stable silicon-containing compositions reinforced with functionalized silica useful as one and two-part sealant and adhesive systems. The cured compositions provide silicon-containing rubber having excellent translucency, physical properties and primerless adhesion.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 6, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventors: Reuben Correia, Abirami Srikanth, Indumathi Ramakrishnan, Shayne Landon, Vikram Kumar
  • Publication number: 20130158159
    Abstract: The present invention relates to stable, zero or low VOC epoxy-containing polysiloxane oligomer compositions that provide for a high degree of chemical resistance to compositions containing organic resins, while at the same time, maintaining or improving the flexibility of these organic resin-containing compositions, to processes for preparing epoxy-containing polysiloxane oligomer compositions, and to uses in coatings, sealants, adhesives, and composites containing the same.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 20, 2013
    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Narayana Padmanabha Iyer, Lesley Hwang, Vikram Kumar, Christian Geismann, Constantine Kondos, Shiu-Chin Su
  • Publication number: 20130014755
    Abstract: An apparatus is provided for vaporizing a source of vaporizable substance for delivering an aerosol. The vaporizing apparatus comprises a housing defining a first combustion chamber, a second vaporizing chamber for receiving the vaporizable substance, and a transverse wall spanning the interior of the housing for separating the first chamber and the second chamber. A heat transfer element, comprising an elongated member of heat conductive material, extends from the first chamber through the wall and into the second chamber in heat transfer relation with the vaporizable substance for transferring heat from the first chamber to the vaporizable substance. A gas burner disposed in the combustion chamber converts fuel gas to a flame for heating the combustion chamber and the heat transfer element. The heat transfer element maintains the temperature in the second chamber at or above the vaporization temperature of the substance.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 17, 2013
    Inventors: Jay Kumar, Vikram Kumar
  • Patent number: 8257805
    Abstract: The invention relates to a high thermal efficiency, insulated glass unit structure sealed with a cured composition containing, inter alia, diorganopolysiloxane(s) and organic nanoclay(s), the cured composition exhibiting low permeability to gas(es).
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: September 4, 2012
    Assignee: Momentive Performance Materials Inc.
    Inventors: Shayne J. Landon, David A. Williams, Vikram Kumar, Edward J. Nesakumar, Indumathi Ramakrishnan
  • Publication number: 20120142955
    Abstract: A silicone composition comprising a formula: (M1)a(D1)b(D2)c wherein M1=R1R2R3SiO1/2; D1=R4R5SiO2/2; and D2=R6R7SiO2/2; wherein R1 is independently at each occurrence a monovalent hydrocarbon radical comprising a reactive end-group other than an amino group; R6 comprises a monovalent poly(oxyalkyl) hydrocarbon radical; and R2, R3, R4, R5, and R7 are independently monovalent hydrocarbon radicals; wherein a, b, and c are stoichiometric subscripts that are zero or positive subject to the following limitations: a is greater than or equal to 2; c is greater than or equal to 1; and when b=0, a+c is greater than or equal to 3 is disclosed.
    Type: Application
    Filed: March 27, 2008
    Publication date: June 7, 2012
    Inventors: Vikram Kumar, Mark D. Leatherman, Suresh Rajaraman, Anubhav Saxena
  • Publication number: 20110245354
    Abstract: The invention relates to a method for separating emulsions of oil and water, the method comprising incorporating a demulsifying-effective amount of a polyorganosiloxane demulsifier into an emulsion comprising an oil phase and an aqueous phase. The invention also relates to compositions containing polyorganosiloxane demulsifier and the water and oil phases of an emulsion.
    Type: Application
    Filed: June 14, 2011
    Publication date: October 6, 2011
    Applicant: Momentive Performance Materials Inc.
    Inventors: Anubhav Saxena, Monjit Phukan, Senthilkumar U, Ian Procter, Sigfredo Gonzalez, Kalman Koczo, Sabine Azouani, Vikram Kumar
  • Patent number: 8030363
    Abstract: The invention relates to a method for separating emulsions of oil and water, the method comprising incorporating a demulsifying-effective amount of a polyorganosiloxane demulsifier into an emulsion comprising an oil phase and an aqueous phase. The invention also relates to compositions containing polyorganosiloxane demulsifier and the water and oil phases of an emulsion.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: October 4, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: Anubhav Saxena, Monjit Phukan, Umapathy Senthilkumar, Ian Procter, Sigfredo Gonzalez, Kalman Koczo, Sabine Azouani, Vikram Kumar
  • Publication number: 20110188456
    Abstract: A system provides push-to-talk (PTT) or similar communication service via a radio access network providing wireless mobile packet data communications for mobile stations. A server distributes packets of digitized audio received from a broadcasting mobile station to one or more client devices of other parties. The called client device(s), however, may not all have the same communications capabilities as the broadcasting mobile station. Signaling procedures are adapted to inform the broadcasting station of the capabilities of the other client device(s). This enables the broadcasting mobile station to configure its transmissions of digitized audio through the network for compatibility with the capabilities of the other client device(s). Proper configuration avoids loss of data at the destination, particularly at the start of a PTT transmission, due to transmission in a form or configuration that may be incompatible with one or more of the receiving stations.
    Type: Application
    Filed: April 8, 2011
    Publication date: August 4, 2011
    Applicant: Cellco Partnership d/b/a Verizon Wireless
    Inventors: Vikram Kumar RAWAT, Derek Hongwei Bao
  • Patent number: 7944896
    Abstract: A system provides push-to-talk (PTT) or similar communication service via a radio access network providing wireless mobile packet data communications for mobile stations. A server distributes packets of digitized audio received from a broadcasting mobile station to one or more client devices of other parties. The called client device(s), however, may not all have the same communications capabilities as the broadcasting mobile station. Signaling procedures are adapted to inform the broadcasting station of the capabilities of the other client device(s). This enables the broadcasting mobile station to configure its transmissions of digitized audio through the network for compatibility with the capabilities of the other client device(s). Proper configuration avoids loss of data at the destination, particularly at the start of a PTT transmission, due to transmission in a form or configuration that may be incompatible with one or more of the receiving stations.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: May 17, 2011
    Assignee: Cellco Partnership
    Inventors: Vikram Kumar Rawat, Derek Hongwei Bao
  • Patent number: 7902314
    Abstract: Disclosed herein is a composition comprising a structure (M1)a(ME)b(D1)c(D2)d(T)e(Q)f, wherein M1=R1R2R3SiO1/2; ME=R4R5RESiO1/2; D1=R6R7SiO2/2; D2=R8R9SiO2/2; T=R10SiO3/2; and Q=SiO4/2; wherein each RE is independently a monovalent hydrocarbon radical containing an epoxy group; R9 comprises a structure -L1-Si(R11)g(OR12)3-g or L2(D3)h(M2)i-L3-Si(R13)g?(OR14)3-g?, wherein L1, L2, and L3 are independently divalent linking groups; g and g? independently have a value from 0 to 2; M2=R15R16R17SiO1/2; D3=R18R19SiO2/2; wherein R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17, R18, and R19 are independently monovalent hydrocarbon radicals; wherein a, b, c, d, e, f, h, and i are stoichiometric subscripts that are zero or positive subject to the following limitations: b has a value of 2; d is greater than or equal to 1; when (a+c+e+f) is equal to zero, (b+d) is greater than or equal to 3; and when i=0, h is at least 1.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: March 8, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: Joseph Edward Nesakumar, Ganesh Kannan, Vikram Kumar, Hariharan Ramalingam, Mark D. Leatherman, Suresh K. Rajaraman
  • Patent number: 7888447
    Abstract: A polycarbonate-polysiloxane copolymer comprising structural units of the formula: wherein each R1, R2, and R3 is independently the same or different monovalent C1-12 should this be C1-C13 like in the document? hydrocarbon group, G comprises a monovalent C6-1000 poly(oxyalkyl) group, each R4 and R5 taken together is independently the same or different divalent C3-30 hydrocarbon linking group wherein R4 is a C1-28 hydrocarbon and R5 is a C2-29 aliphatic group, a is 0 or greater, and b is one or greater; and structural units of the formula: wherein each R is independently the same or different C6-60 divalent hydrocarbon group, and at least 60% of the R groups comprise aromatic moieties.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: February 15, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Dibakar Dhara, Katherine Glasgow, Brian D. Mullen, Vikram Kumar, Mark D. Leatherman, Suresh Rajaraman, Anubhav Saxena
  • Publication number: 20100249358
    Abstract: Disclosed herein is a composition comprising a structure (M1)a(ME)b(D1)c(D2)d(T)e(Q)f, wherein M1=R1R2R3SiO1/2; ME=R4R5RESiO1/2; D1=R6R7SiO2/2; D2=R8R9SiO2/2; T=R10SiO3/2; and Q=SiO4/2; wherein each RE is independently a monovalent hydrocarbon radical containing an epoxy group; R9 comprises a structure -L1-Si(R11)g(OR12)3-g or L2(D3)h(M2)i-L3-Si(R13)g?(OR14)3-g?, wherein L1, L2, and L3 are independently divalent linking groups; g and g? independently have a value from 0 to 2; M2=R15R16R17SiO1/2; D3=R18R19SiO2/2; wherein R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17, R18, and R19 are independently monovalent hydrocarbon radicals; wherein a, b, c, d, e, f, h, and i are stoichiometric subscripts that are zero or positive subject to the following limitations: b has a value of 2; d is greater than or equal to 1; when (a+c+e+f) is equal to zero, (b+d) is greater than or equal to 3; and when i=0, h is at least 1.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 30, 2010
    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Joseph Edward Nesakumar, Ganesh Kannan, Vikram Kumar, Hariharan Ramalingam, Mark D. Leatherman, Suresh K. Rajaraman
  • Patent number: 7790829
    Abstract: A method for producing a functionalized silica, compositions and methods for forming curable silicone rubber compositions by using the functionalized silica are also disclosed. Compositions and methods for forming cured silicone resin compositions and products having high transparency, high tensile strength, desirable percent elongation, or a combination of the foregoing properties are also disclosed.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: September 7, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Abirami Srikanth, Vikram Kumar, Helmut Steinberger, Umapathy Senthilkumar
  • Publication number: 20100098888
    Abstract: The invention relates to an insulated glass unit having an increased service life. An outer glass pane and inner glass pane are sealed to a spacer to provide an improved gas impermeable space. The glass unit includes a curable two-part sealer composition which, upon curing, exhibits unexpectedly high adhesion to substrates.
    Type: Application
    Filed: December 4, 2009
    Publication date: April 22, 2010
    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Shayne J. Landon, David A. Williams, Vikram Kumar, Sachin A. Shelukar, Edward J. Nesakumar, Indumathi Ramakrishnan
  • Patent number: 7687121
    Abstract: The invention relates to a high thermal efficiency, insulated glass unit structure sealed with a cured composition containing, inter alia, diorganopolysiloxane(s) and inorganic-organic nanocomposite(s), the cured composition exhibiting low permeability to gas(es).
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: March 30, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Shayne J. Landon, David A. Williams, Vikram Kumar, Edward J. Nesakumar, Indumothi Ramakrishnan
  • Patent number: 7674857
    Abstract: The present invention provides for a room temperature cured silicone thermoplastic resin sealant composition with reduced gas permeability useful in the manufacture of glazing such as windows and doors.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: March 9, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Shayne J. Landon, David A. Williams, Vikram Kumar, Sachin Askok Shelukar, Edward Joseph Nesakumar, Indumathi Ramakrishnan