Patents by Inventor Ramasubramanian Narayanan

Ramasubramanian Narayanan 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).

  • Addition curable composition comprising siloxane-imide copolymers
    Patent number: 11753507
    Abstract: A curable silicone adhesive composition comprising a heat stable siloxane-imide copolymer is shown and described herein. The composition includes an alkenyl silicone, a silicone hydride based cross linker, hydrosilylation catalyst and additives that is curable at relatively low temperatures and shows good heat stability.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: September 12, 2023
    Assignee: Momentive Performance Materials Inc.
    Inventors: Subrata Mandal, Tetsuo Fujimoto, Vinodh Rajendra, Joseph Zampella, Ramasubramanian Narayanan, Clarissa Miller
  • ADDITION CURABLE SILICONE ADHESIVE COMPOSITIONS
    Publication number: 20230047848
    Abstract: A curable silicone adhesive composition comprising a combination of adhesion promoters is shown and described herein. The composition includes a first adhesion promoter selected from a silicon hydride adhesion promoter and a second adhesion promoter selected from an acrylate functional adhesion promoter to provide a silicone material that is curable at relatively low temperatures and shorter time and provides good adhesion to plastics and metal.
    Type: Application
    Filed: December 13, 2019
    Publication date: February 16, 2023
    Inventors: Mandal SUBRATA, Koki OTASHIRO, Masanori TAKANASHI, Ramasubramanian NARAYANAN
  • Siloxane-imide copolymer and addition curable composition comprising same
    Patent number: 11535715
    Abstract: A heat stable siloxane-imide copolymer and a curable silicone adhesive composition comprising such a siloxane-imide copolymer is shown and described herein. The composition includes an alkenyl silicone, a silicone hydride based cross linker, hydrosilylation catalyst and additives that is curable at relatively low temperatures and shows good heat stability.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: December 27, 2022
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Subrata Mandal, Tetsuo Fujimoto, Takeshi Sunaga, Ramasubramanian Narayanan
  • SILOXANE-IMIDE COPOLYMER AND ADDITION CURABLE COMPOSITION COMPRISING SAME
    Publication number: 20220195122
    Abstract: A heat stable siloxane-imide copolymer and a curable silicone adhesive composition comprising such a siloxane-imide copolymer is shown and described herein. The composition includes an alkenyl silicone, a silicone hydride based cross linker, hydrosilylation catalyst and additives that is curable at relatively low temperatures and shows good heat stability.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 23, 2022
    Inventors: Subrata Mandal, Tetsuo Fujimoto, Takeshi Sunaga, Ramasubramanian Narayanan
  • ADDITION CURABLE COMPOSITION COMPRISING SILOXANE-IMIDE COPOLYMERS
    Publication number: 20220195124
    Abstract: A curable silicone adhesive composition comprising a heat stable siloxane-imide copolymer is shown and described herein. The composition includes an alkenyl silicone, a silicone hydride based cross linker, hydrosilylation catalyst and additives that is curable at relatively low temperatures and shows good heat stability.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 23, 2022
    Inventors: Subrata Mandal, Tetsuo Fujimoto, Vinodh Rajendra, Joseph Zampella, Ramasubramanian Narayanan, Clarissa Miller
  • ELECTROSTATICALLY DISSIPATIVE ROOM TEMPERATURE VULCANIZABLE SILICONE
    Publication number: 20220098370
    Abstract: A two-part RTV silicone is shown and described herein. In one aspect, provided is an electrostatically dissipative, two-part RTV silicone material. In embodiments, the silicone is white and exhibits a low thermal conductivity.
    Type: Application
    Filed: December 3, 2019
    Publication date: March 31, 2022
    Inventors: Vinodh RAJENDRA, Isao IIDA, Tetsuo FUJIMOTO, Ramasubramanian NARAYANAN
  • Microporous Film
    Publication number: 20120193827
    Abstract: A microporous film is described made from a polyacetal polymer. in one embodiment, the microporous film is formed from a composition comprising a polyacetal copolymer combined with an inorganic filler and a plasticizer. The polymer composition is extruded or molded into a sheet. The sheet is then passed through an extraction medium in order to remove a portion of the plasticizer. The extraction medium is then removed from the sheet.
    Type: Application
    Filed: December 22, 2011
    Publication date: August 2, 2012
    Applicant: Ticona LLC
    Inventor: Ramasubramanian Narayanan