Patents by Inventor Meenal MEHRA

Meenal MEHRA 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: 20240327690
    Abstract: A process for forming a silicone material is shown and described herein. The process comprises reacting (i) a MQ silicone resin, (ii) a polyorganosiloxane, and (iii) a hydrophilic functional siloxane, wherein the reaction is conducted in the absence of an external catalyst. The mixture of (i), (ii), and (iii) is self-catalyzing and does not require an external condensation catalyst. The process is suitable for forming a cured silicone material such as, for example, a pressure sensitive adhesive.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 3, 2024
    Inventors: Meenal Mehra, Sandeep Naik, Tiberiu Mircea Siclovan, Arindam Sannigrahi, Debarshi Dasgupta, Praveen Mishra, Sukanta Dolai
  • Publication number: 20240327678
    Abstract: A novel hydrophylically modified silicone and a composition for forming a hydrophylically modified silicone pressure sensitive adhesive is shown and described herein. The comprises comprises (i) a MQ silicone resin, (ii) a polyorganosiloxane, and (iii) a siloxane comprising a range of hydrophilic functional groups. The mixture of (i), (ii), and (iii) is self-catalyzing and does not require an external condensation catalyst. The composition is suitable for forming a cured silicone material such as, for example, a pressure sensitive adhesive compatible with polar additives or actives used in various applications.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 3, 2024
    Inventors: Meenal Mehra, Sandeep Naik, Tiberiu Mircea Siclovan, Arindam Sannigrahi, Debarshi Dasgupta, Praveen Mishra, Sukanta Dolai
  • Patent number: 12049576
    Abstract: A process for producing a silicone pressure sensitive adhesive is shown and described herein. The process comprises reacting a MQ silicone resin with a polydiorganosiloxane in the absence of a solvent. The MQ silicone resin is a solid, solventless MQ resin. The reaction may be conducted in the presence of a catalyst, a chain extension reagent, or a combination thereof, and the resulting pressure sensitive adhesive can be dissolved in a solvent and the solids content adjusted. The present method provides a manner to provide a cleaner adhesive material that is free of unwanted materials such as aromatic solvents and also substantially free of cyclic siloxane impurities.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: July 30, 2024
    Assignee: Momentive Performance Materials Inc.
    Inventors: Arindam Sannigrahi, Sandeep Naik, Meenal Mehra, Debarshi Dasgupta, Tiberiu Mircea Siclovan, Kwanho Chang
  • Patent number: 11884779
    Abstract: A hydrophilic silicone, compositions comprising the same, and articles comprising the same are shown and described herein. The hydrophilic silicone is an ionically modified silicone compound wherein the compound comprises a zwitterionic moiety and has a net neutral charge. The hydrophilic silicone compounds may be provided as part of a composition, e.g., a composition suitable for forming a hydrogel, which may be employed to form a film material and even an article (e.g., in a contact lens).
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: January 30, 2024
    Assignee: Momentive Performance Materials Inc.
    Inventors: Sukanta Dolai, Shreedhar Bhat, Meenal Mehra
  • Publication number: 20220325154
    Abstract: A process for producing a silicone pressure sensitive adhesive is shown and described herein. The process comprises reacting a MQ silicone resin with a polydiorganosiloxane in the absence of a solvent. The MQ silicone resin is a solid, solventless MQ resin. The reaction may be conducted in the presence of a catalyst, a chain extension reagent, or a combination thereof, and the resulting pressure sensitive adhesive can be dissolved in a solvent and the solids content adjusted. The present method provides a manner to provide a cleaner adhesive material that is free of unwanted materials such as aromatic solvents and also substantially free of cyclic siloxane impurities.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 13, 2022
    Inventors: Arindam Sannigrahi, Sandeep Naik, Meenal Mehra, Debarshi Dasgupta, Tiberiu Mircea Siclovan, Kwanho Chang
  • Patent number: 11254789
    Abstract: A hydrophilic silicone, compositions comprising the same, and articles comprising the same are shown and described herein. The hydrophilic silicone is an ionically modified silicone compound wherein the compound has a net neutral charge. The hydrophilic silicone compounds may be provided as part of a composition, e.g., a composition suitable for forming a hydrogel, which may be employed to form a film material and even an article (e.g., in a contact lens).
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: February 22, 2022
    Assignee: Momentive Performance Materials Inc.
    Inventors: Meenal Mehra, Raveendra Mathad, Shreedhar Bhat
  • Publication number: 20200231757
    Abstract: A hydrophilic silicone, compositions comprising the same, and articles comprising the same are shown and described herein. The hydrophilic silicone is an ionically modified silicone compound wherein the compound comprises a zwitterionic moiety and has a net neutral charge. The hydrophilic silicone compounds may be provided as part of a composition, e.g., a composition suitable for forming a hydrogel, which may be employed to form a film material and even an article (e.g., in a contact lens).
    Type: Application
    Filed: February 16, 2018
    Publication date: July 23, 2020
    Inventors: Sukanta DOLAI, Shreedhar BHAT, Meenal MEHRA
  • Publication number: 20200223985
    Abstract: A hydrophilic silicone, compositions comprising the same, and articles comprising the same are shown and described herein. The hydrophilic silicone is an ionically modified silicone compound wherein the compound has a net neutral charge. The hydrophilic silicone compounds may be provided as part of a composition, e.g., a composition suitable for forming a hydrogel, which may be employed to form a film material and even an article (e.g., in a contact lens).
    Type: Application
    Filed: February 16, 2018
    Publication date: July 16, 2020
    Inventors: Meenal MEHRA, Raveendra MATHAD, Shreedhar BHAT