Patents by Inventor Anantharaman Dhanabalan

Anantharaman Dhanabalan 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: 20140378612
    Abstract: The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides Zn(II) and Zr(IV) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The Zn(II) and Zr(IV) complexes are comparable or superior to organotin such as DBTDL and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 25, 2014
    Inventors: Sumi Dinkar, Mihirkumar Patel Maheshbai, Anantharaman Dhanabalan
  • Publication number: 20140350175
    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: Application
    Filed: December 7, 2012
    Publication date: November 27, 2014
    Inventors: Sumi Dinkar, Anantharaman Dhanabalan
  • Publication number: 20140343202
    Abstract: The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides Fe(III) and Bi(III) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The Fe(III) and Bi(III) complexes are comparable or superior to organotin such as DBTDL and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.
    Type: Application
    Filed: November 9, 2012
    Publication date: November 20, 2014
    Inventors: Sumi Dinkar, Mihirkumar Patel Maheshbai, Anantharaman Dhanabalan
  • Publication number: 20140316059
    Abstract: The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides La(III) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The La(III) complexes are comparable to organotin such as DBTDL and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.
    Type: Application
    Filed: December 7, 2012
    Publication date: October 23, 2014
    Inventors: Sumi Dinkar, Anantharaman Dhanabalan
  • Patent number: 8796406
    Abstract: A copolymer suitable for use in forming a solid polymer electrolyte film comprising a first monomer represented by Formula (1): wherein n is 2 to 1,000; m is 2 to 1,000; x and y are individually 1 to 100; p is 0 to 10; and q is 1 to 10, R1 is an alkyl group having 1 to 10 carbon atoms, and A is an alkyl acryloyl group an acryloyl group, alkyl acryloyl group, methacryloyl group, alkyl methacryloyl group, a vinyl group, an allyl group, a styryl group, or a combination of two or more thereof; and a second monomer chosen from a hydroxyl-substituted alkyl acrylate, a hydroxyl-substituted alkyl methacrylate, or a combination of two or more thereof. The copolymer may be used to form a solid polymer electrolyte composition comprising (i) the copolymer, (ii) a plasticizer, and (iii) a salt. The solid polymer electrolyte may be used to form a solid polymer electrolyte film, which may be suitable for use in electrochemical devices.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: August 5, 2014
    Assignee: Momentive Performance Materials Inc.
    Inventors: Neeraj Gupta, Anantharaman Dhanabalan, Nagendiran Shanmugam, Vivek Khare
  • Publication number: 20130338606
    Abstract: In one aspect, a self-lubricating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre-filled syringe comprising a body (barrel) and a plunger assembly.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Samuel Conzone, David M. Rusinko, Chandrashekar Raman, Indumathi Ramakrishnan, Anantharaman Dhanabalan, Mayank Kumar Dubey, Markus Bley, Hans Rafael Winkelbach
  • Patent number: 8530536
    Abstract: In one aspect, a self-lubricating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre-filled syringe comprising a body (barrel) and a plunger assembly.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: September 10, 2013
    Inventors: Samuel D. Conzone, David M. Rusinko, Chandrashekar Raman, Indumathi Ramakrishnan, Anantharaman Dhanabalan, Mayank Kumar Dubey, Sumi Dinkar, Mayanglambam Rebika Devi, Markus Bley
  • Publication number: 20130040207
    Abstract: A copolymer suitable for use in forming a solid polymer electrolyte film comprising a first monomer represented by Formula (1): wherein n is 2 to 1,000; m is 2 to 1,000; x and y are individually 1 to 100; p is 0 to 10; and q is 1 to 10, R1 is an alkyl group having 1 to 10 carbon atoms, and A is an alkyl acryloyl group an acryloyl group, alkyl acryloyl group, methacryloyl group, alkyl methacryloyl group, a vinyl group, an allyl group, a styryl group, or a combination of two or more thereof; and a second monomer chosen from a hydroxyl-substituted alkyl acrylate, a hydroxyl-substituted alkyl methacrylate, or a combination of two or more thereof. The copolymer may be used to form a solid polymer electrolyte composition comprising (i) the copolymer, (ii) a plasticizer, and (iii) a salt. The solid polymer electrolyte may be used to form a solid polymer electrolyte film, which may be suitable for use in electrochemical devices.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 14, 2013
    Inventors: Neeraj Gupta, Anantharaman Dhanabalan, Nagendiran Shanmugam, Vivek Khare
  • Publication number: 20120219803
    Abstract: Disclosed herein is a primer composition comprising an inorganic UV absorbing agent and a polymer selected from (i) a copolycarbonate, and (ii) a polyurethane obtained by reaction of a polyisocyanate and a copolycarbonate diol. Also disclosed is a coated article comprising a polymeric substrate, a primer layer disposed on at least one surface of said substrate, and an abrasion-resistant layer disposed on said primer layer, where the primer layer is made from the primer composition of the invention.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Applicant: Momentive Performance Materials Inc.
    Inventors: Honnaiah Mallesha, Anantharaman Dhanabalan, Robert F. Hayes, Narayana Padmanabha Iyer, Marc Schaepkens
  • Publication number: 20120219802
    Abstract: Disclosed herein are novel copolycarbonates containing repeating units A and B respectively of the formulae: (A)—[R1OC(?O)O]—, and (B)—[(R2O)n-C(?O)—O]—, wherein the molar ratio of units (A) to units (B) is in the range of from about 9:1 to about 1:9, and wherein R1 is a divalent C8 to C12 alicyclic group, and R2 is ethylene or propylene, and n is an integer ranging from 4 to 40. Also disclosed are silicone hardcoat compositions containing the copolycarbonates and their derivatives. Upon cure, these silicone hardcoat compositions exhibit improved flexibility as compared to that of the conventional hardcoats while at the same time maintain the abrasion resistance of conventional silicone hardcoats.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Applicant: Momentive Performance Materials Inc.
    Inventors: Christoph Hilgers, Anantharaman Dhanabalan, Narayana Padmanabha Iyer, Shayne Joseph Landon
  • Patent number: 8252858
    Abstract: Thermoplastic compositions and methods of making the compositions are disclosed. The thermoplastic compositions include poly(arylene ether), a poly(alkenyl aromatic), an organophosphate ester flame retardant, a functionalized polysiloxane, and an organic acid. The thermoplastic compositions produce surprisingly low smoke density when burned, and they are useful for the fabrication of articles for the transportation and building and construction industries.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: August 28, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Avadhanula Venkata Subramanya Kishore, Chandra Sekhar Bajgur, Anantharaman Dhanabalan, Vijay Mhetar, Amol Adhikrao Mohite, Abhijit Anand Namjoshi, Nivedita Shishupal Sangaj, Kirti Sharma, Sumi Suvarna
  • Publication number: 20120065595
    Abstract: In one aspect, a self-lubricating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre-filled syringe comprising a body (barrel) and a plunger assembly.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 15, 2012
    Inventors: Samuel D. Conzone, David M. Rusinko, Chandrashekar Raman, Indumathi Ramakrishnan, Anantharaman Dhanabalan, Mayank Kumar Dubey, Sumi Dinkar, Mayanglambam Rebika Devi, Markus Bley
  • Publication number: 20120065308
    Abstract: The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides Mn(III) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The Mn(III) complexes are comparable or superior to organotin such as DBTDL, superior to Mn(II) compounds, and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 15, 2012
    Inventors: Sumi, Edward J. Nesakumar, Anantharaman Dhanabalan, Shahid Murtuza, Shayne J. Landon
  • Publication number: 20110237734
    Abstract: There is provided herein a composition comprising: (A) a silanol and/orhydrocarbon-terminated polyorganosiloxane in an amount of from about 30 weight percent to about 90 weight percent; and, (B) a moisture curable silylated polyurethane resin in an amount of from about 10 weight percent to about 70 weight percent. There is also provided herein in another embodiment a two part sealant composition wherein the first part comprises: (A) a silanol and/or hydrocarbon-terminated polyorganosiloxane in an amount of from about 15 weight percent to about 60 weight percent, (B) a moisture curable silylated polyurethane resin in an amount of from about 2 weight percent to about 32 weight percent, and (C) a filler, said weight percents being based on the weight of the first part.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 29, 2011
    Applicant: Momentive Performance Materials Inc.
    Inventors: Indumathi Ramakrishnan, Shayne Joseph Landon, David A. Williams, Anantharaman Dhanabalan
  • Publication number: 20110237740
    Abstract: The present invention is directed to a composition having: (A) at least one silylated polyurethane resin containing polydiorganosiloxane; and, (B) at least one silylated polyurethane resin A.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 29, 2011
    Applicant: Momentive Performance Materials Inc.
    Inventors: Narayana Padmanabha Iyer, Anantharaman Dhanabalan, Jos Delis, Shayne Joseph Landon, Remy Gauthier
  • Patent number: 7863398
    Abstract: An improved process for preparing hydrolyzable polymers, the process includes, inter alia, reacting certain silylorganohalide compounds with a salt of a cyanate in the presence of active hydrogen containing polymers.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: January 4, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: Mayanglambam Rebika Devi, Narayana Padmanabha Iyer, Suneel Kunamaneni, Anantharaman Dhanabalan, Arakali Sreenivasarao Radhakrishna
  • Patent number: 7608651
    Abstract: An article comprises a compatibilized poly(arylene ether)/polyamide blend, an optional electrically conductive filler, a phosphinate, and flame retardant augment selected from the group consisting of melamine polyphosphate, zinc borate, low melting glass, talc, and combinations of two or more of the foregoing flame retardant augments.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: October 27, 2009
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Pravin Borade, Manatesh Chakraborty, Anantharaman Dhanabalan, Roshan Kumar Jha, Jaykisor Pal
  • Publication number: 20080242825
    Abstract: An improved process for preparing hydrolyzable polymers, the process includes, inter alia, reacting certain silylorganohalide compounds with a salt of a cyanate in the presence of active hydrogen containing polymers.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 2, 2008
    Inventors: Mayanglambam Rebika Devi, Narayana Padmanabha Iyer, Suneel Kunamaneni, Anantharaman Dhanabalan, Arakali Sreenivasarao Radhakrishna
  • Patent number: 7408016
    Abstract: A composition comprising a polycarbonate, wherein the polycarbonate has a weight average molecular weight of greater than 15,000, comprises more than 15 mole percent structural units derived from a 2-aryl-3,3-bis(4-hydroxyaryl)phthalimide: wherein R1 is selected from the group consisting of aryl groups having 6 to 25 carbon atoms and aralkyl groups having 7 to 25 carbon atoms, and R2 is selected from the group consisting of a hydrogen, a hydrocarbyl group, and a halogen; and further wherein the polycarbonate has a yellowness index of less than 10 as measured on a 3 millimeter thick plaque in accordance with ASTM D1925 is disclosed.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: August 5, 2008
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Gautam Chatterjee, Anantharaman Dhanabalan, Katherine Glasgow, Vinod Kumar Rai, Suresh Shanmugam, Veeraraghavan Srinivasan
  • Publication number: 20080167407
    Abstract: Thermoplastic compositions and methods of making the compositions are disclosed. The thermoplastic compositions include poly(arylene ether), a poly(alkenyl aromatic), an organophosphate ester flame retardant, a functionalized polysiloxane, and an organic acid. The thermoplastic compositions produce surprisingly low smoke density when burned, and they are useful for the fabrication of articles for the transportation and building and construction industries.
    Type: Application
    Filed: June 28, 2007
    Publication date: July 10, 2008
    Inventors: Avadhanula Venkata Subramanya Kishore, Chandra Sekhar Bajgur, Anantharaman Dhanabalan, Vijay Mhetar, Amol Adhikrao Mohite, Abhijit Anand Namjoshi, Nivedita Shishupal Sangaj, Kirti Sharma, Sumi Suvarna