Patents by Inventor Lakshmi N. Vutukuru Murthy

Lakshmi N. Vutukuru Murthy 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).

  • Epoxidation methods
    Patent number: 9458121
    Abstract: A method for the epoxidation of alkylenes is provided. The method makes use of an epoxidation catalyst comprising a support, silver, manganese and greater than 35 ppm sodium. The catalyst is produced by a method comprising impregnating the support with manganese prior to impregnating the support with sodium and impregnating the support with silver prior to, at the same time as, or after impregnation with manganese. A method for using the alkylene oxides for the production of 1,2-diols, 1,2-carbonates, 1,2-diol ethers is also provided.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: October 4, 2016
    Assignee: Dow Technology Investments LLC
    Inventors: Srikant Gopal, Lakshmi N. Vutukuru Murthy, Arun G. Basrur
  • EPOXIDATION METHODS
    Publication number: 20160122309
    Abstract: A method for the epoxidation of alkylenes is provided. The method makes use of an epoxidation catalyst comprising a support, silver, manganese and greater than 35 ppm sodium. The catalyst is produced by a method comprising impregnating the support with manganese prior to impregnating the support with sodium and impregnating the support with silver prior to, at the same time as, or after impregnation with manganese. A method for using the alkylene oxides for the production of 1,2-diols, 1,2-carbonates, 1,2-diol ethers is also provided.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Applicant: DOW TECHNOLOGY INVESTMENTS LLC
    Inventors: Srikant Gopal, Lakshmi N. Vutukuru Murthy, Arun G. Basrur
  • Methods for producing epoxidation catalysts and epoxidation methods utilizing them
    Patent number: 9259726
    Abstract: A method for producing epoxidation catalysts is provided. The catalyst comprises a support, a catalytic species, maganese and at least one alkali metal and/or promoter. The catalytic species may be silver. The catalyst is prepared by a method wherein at least a portion of the manganese is impregnated in a step separate from the at least one alkali metal and/or promoter. Advantageously, catalysts produced by the present method may exhibit greater efficiencies than catalysts produced by conventional methods. A method for the epoxidation of alkylenes using the catalysts so produced is provided as is a method for using the alkylene oxides for the production of 1,2-diols, 1,2-carbonates, 1,2-diol ethers, or alka-nolamines.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: February 16, 2016
    Assignee: Dow Technology Investments LLC
    Inventors: Srikant Gopal, Lakshmi N. Vutukuru Murthy, Arun G. Basrur
  • METHODS FOR PRODUCING EPOXIDATION CATALYSTS AND EPOXIDATION METHODS UTILIZING THEM
    Publication number: 20140107356
    Abstract: A method for producing epoxidation catalysts is provided. The catalyst comprises a support, a catalytic species, maganese and at least one alkali metal and/or promoter. The catalytic species may be silver. The catalyst is prepared by a method wherein at least a portion of the manganese is impregnated in a step separate from the at least one alkali metal and/or promoter. Advantageously, catalysts produced by the present method may exhibit greater efficiencies than catalysts produced by conventional methods. A method for the epoxidation of alkylenes using the catalysts so produced is provided as is a method for using the alkylene oxides for the production of 1,2-diols, 1,2-carbonates, 1,2-diol ethers, or alka-nolamines.
    Type: Application
    Filed: May 25, 2012
    Publication date: April 17, 2014
    Applicant: DOW TECHNOLOGY INVESTMENTS, LLC
    Inventors: Srikant Gopal, Lakshmi N. Vutukuru Murthy, Arun G. Basrur