Patents by Inventor Munusamy VIJAYARAJ

Munusamy VIJAYARAJ 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).

  • Process for in-situ synthesis of dispersion ZnO—TiO2 nanoparticles in oil
    Patent number: 10633609
    Abstract: The present invention provides a process for in situ synthesis of dispersion of ZnO and TiO2 nanoparticles in an oil medium, wherein the process comprises: (a) providing layered basic zinc hydroxide (LBZ) in an oil medium, containing a dispersant, (b) providing a titanium precursor in the oil medium to obtain a mixture, (c) hydrolyzing the mixture to obtain a suspension, and (d) decomposing the suspension to obtain a dispersion of mixture of ZnO and TiO2 nanoparticles. The present invention also provides an oil dispersion comprising dispersant stabilized mixture of zinc oxide and titanium dioxide nanoparticles were synthesized through this process. The dispersion contains up to 2.5 Wt % metals loading balanced with dispersant and base oil or dispersant alone. Addition of this dispersion to oil of lubricating viscosity improves the anti-wear property and resulting a low SAPS formulation.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: April 28, 2020
    Assignee: Indian Oil Corporation Limited
    Inventors: Munusamy Vijayaraj, Samik Kumar Hait, Madhira Indu Sekhara Sastry, Sankara Sri Venkata Ramakumar
  • PROCESS FOR IN-SITU SYNTHESIS OF DISPERSION ZnO-TiO2 NANOPARTICLES IN OIL
    Publication number: 20180334634
    Abstract: The present invention provides a process for in situ synthesis of dispersion of ZnO and TiO2 nanoparticles in an oil medium, wherein the process comprises: (a) providing layered basic zinc hydroxide (LBZ) in an oil medium, containing a dispersant, (b) providing a titanium precursor in the oil medium to obtain a mixture, (c) hydrolyzing the mixture to obtain a suspension, and (d) decomposing the suspension to obtain a dispersion of mixture of ZnO and TiO2 nanoparticles. The present invention also provides an oil dispersion comprising dispersant stabilized mixture of zinc oxide and titanium dioxide nanoparticles were synthesized through this process. The dispersion contains up to 2.5 Wt % metals loading balanced with dispersant and base oil or dispersant alone. Addition of this dispersion to oil of lubricating viscosity improves the anti-wear property and resulting a low SAPS formulation.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 22, 2018
    Applicant: Indian Oil Corporation Limited
    Inventors: Munusamy VIJAYARAJ, Samik Kumar HAIT, Madhira Indu Sekhara SASTRY, Sankara Sri Venkata RAMAKUMAR
  • Process for in situ synthesis of dispersion ZnO nanoparticles in oil
    Patent number: 10059902
    Abstract: The present invention relates to a process for synthesizing dispersion of ZnO nanoparticles in an oil medium. Particularly, the invention relates to a process for in-situ synthesis of dispersion of ZnO nanoparticles in oil medium. Additionally, the present invention relates to a lubricant oil composition, wherein the composition comprises a base oil, a dispersant and the dispersion of ZnO as obtained by the process of the present invention.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: August 28, 2018
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Munusamy Vijayaraj, Samik Kumar Hait, Madhira Indu Sekhara Sastry, Sankara Sri Venkata Ramakumar
  • PROCESS FOR IN SITU SYNTHESIS OF DISPERSION ZnO NANOPARTICLES IN OIL
    Publication number: 20160237373
    Abstract: The present invention relates to a process for synthesizing dispersion of ZnO nanoparticles in an oil medium. Particularly, the invention relates to a process for in-situsynthesis of dispersion of ZnO nanoparticles in oil medium. Additionally, the present invention relates to a lubricant oil composition, wherein the composition comprises a base oil, a dispersant and the dispersion of ZnO as obtained by the process of the present invention.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 18, 2016
    Inventors: Munusamy VIJAYARAJ, Samik Kumar HAIT, Madhira Indu Sekhara SASTRY, Sankara Sri Venkata RAMAKUMAR