Patents by Inventor Bhaskar Veldurthy

Bhaskar Veldurthy 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).

  • Catalytic method for producing phenolphthalein compounds
    Patent number: 7915430
    Abstract: A method of producing a phenolphthalein comprises reacting a phenolic compound of the formula: wherein R1 is a hydrogen or a C1-C12 hydrocarbyl group, with a phthalic anhydride compound of the formula: wherein R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen, in the presence of a heterogeneous catalyst and a promoter to form a reaction mixture comprising a phenolphthalein compound of the formula: wherein each R1 is independently a hydrogen or a C1-C12 hydrocarbyl group, and R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen; wherein the heterogeneous catalyst comprises a metal oxide composition in combination with a porous support, wherein the metal is molybdenum, tungsten, or a combination comprising at least one of the foregoing metals.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: March 29, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Venkata Rama Narayanan Ganapathy Bhotla, Shivappa Basappa Halligudi, Gurram Kishan, Salkod Parameshwar Mallika, Bhaskar Veldurthy
  • Method for producing phenolphthalein using a heteropolyacid catalyst
    Patent number: 7868190
    Abstract: A method for producing a phenolphthalein compound comprises: reacting a phenolic compound of the formula: wherein R1 is a hydrogen or a C1-C12 hydrocarbyl group, with a phthalic anhydride compound of the formula: wherein R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen, in the presence of a heterogeneous catalyst and a promoter to form a reaction mixture comprising a phenolphthalein compound of the formula: wherein each R1 is independently a hydrogen or a C1-C12 hydrocarbyl group; and R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen; wherein the heterogeneous catalyst comprises, on a porous support, a calcination product of a heteropolyacid composition.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: January 11, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Venkata Rama Narayanan Ganapathy Bhotla, Shivappa Basappa Halligudi, Gurram Kishan, Salkod Parameshwar Mallika, Bhaskar Veldurthy
  • CATALYTIC METHOD FOR PRODUCING PHENOLPHTHALEIN COMPOUNDS
    Publication number: 20100081828
    Abstract: A method of producing a phenolphthalein comprises reacting a phenolic compound of the formula: wherein R1 is a hydrogen or a C1-C12 hydrocarbyl group, with a phthalic anhydride compound of the formula: wherein R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen, in the presence of a heterogeneous catalyst and a promoter to form a reaction mixture comprising a phenolphthalein compound of the formula: wherein each R1 is independently a hydrogen or a C1-C12 hydrocarbyl group, and R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen; wherein the heterogeneous catalyst comprises a metal oxide composition in combination with a porous support, wherein the metal is molybdenum, tungsten, or a combination comprising at least one of the foregoing metals.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Inventors: Venkata Rama Narayanan Ganapathy BHOTLA, Shivappa Basappa HALLIGUDI, Gurram KISHAN, Salkod Parameshwar MALLIKA, Bhaskar VELDURTHY
  • METHOD FOR PRODUCING PHENOLPHTHALEIN USING A HETEROPOLYACID CATALYST
    Publication number: 20100081829
    Abstract: A method for producing a phenolphthalein compound comprises: reacting a phenolic compound of the formula: wherein R1 is a hydrogen or a C1-C12 hydrocarbyl group, with a phthalic anhydride compound of the formula: wherein R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen, in the presence of a heterogeneous catalyst and a promoter to form a reaction mixture comprising a phenolphthalein compound of the formula: wherein each R1 is independently a hydrogen or a C1-C12 hydrocarbyl group; and R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen; wherein the heterogeneous catalyst comprises, on a porous support, a calcination product of a heteropolyacid composition.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Inventors: Venkata Rama Narayanan Ganapathy BHOTLA, Shivappa Basappa HALLIGUDI, Gurram KISHAN, Salkod Parameshwar MALLIKA, Bhaskar VELDURTHY