Patents by Inventor Karunakar Reddy Rondla

Karunakar Reddy Rondla 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).

  • 9,10,12-triacyloxy octadecanoic acid alkyl ester and 9,10,12-triacyloxy octadecanoic acid alkyl ester rich fatty acid alkyl esters mixture and a process for preparation thereof
    Patent number: 8609876
    Abstract: The present invention relates to modification of the chemical structure of ricinoleic acid, which is present to an extent of 85-90% in castor oil into triacyloxy alkyl ester derivatives. Accordingly, 9,10,12-trihydroxy octadecanoic acid rich fatty acid mixture was prepared from castor oil and converted to their alkyl esters followed by acylation of hydroxy groups to get 9,10,12-triacyloxy octadecanoic acid alkyl ester rich fatty acid alkyl esters mixture. The 9,10,12-triacyloxy octadecanoic acid alkyl esters were purified from the crude product and characterized by 1H NMR studies. The crude products were also evaluated for acid value (A.V.), hydroxyl value (H. V.), iodine value (I. V.), viscosity, viscosity index (V.I.), pour point, flash point and copper strip corrosion and found to be potential base stocks for hydraulic, metal working fluids and other industrial fluids.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: December 17, 2013
    Assignee: Council of Scientific & Industrial Research
    Inventors: Venkata Surya Koppeswara Rao Bhamidipati, Venkata Padmaja Korlipara, Karunakar Reddy Rondla, Satya Bhaskar Potula, Saravanan Krishnasamy, Badari Narayana Prasad Rachapudi
  • A 9,10,12-TRIACYLOXY OCTADECANOIC ACID ALKYL ESTER AND 9,10,12-TRIACYLOXY OCTADECANOIC ACID ALKYL ESTER RICH FATTY ACID ALKYL ESTERS MIXTURE AND A PROCESS FOR PREPARATION THEREOF
    Publication number: 20110124896
    Abstract: The present invention relates to modification of the chemical structure of ricinoleic acid, which is present to an extent of 85-90% in castor oil into triacyloxy alkyl ester derivatives. Accordingly, 9,10,12-trihydroxy octadecanoic acid rich fatty acid mixture was prepared from castor oil and converted to their alkyl esters followed by acylation of hydroxy groups to get 9,10,12-triacyloxy octadecanoic acid alkyl ester rich fatty acid alkyl esters mixture. The 9,10,12-triacyloxy octadecanoic acid alkyl esters were purified from the crude product and characterized by 1H NMR studies. The crude products were also evaluated for acid value (A.V.), hydroxyl value (H. V.), iodine value (I. V.), viscosity, viscosity index (V.I.), pour point, flash point and copper strip corrosion and found to be potential base stocks for hydraulic, metal working fluids and other industrial fluids.
    Type: Application
    Filed: May 14, 2009
    Publication date: May 26, 2011
    Applicant: Council of Scientific & Industrial Research
    Inventors: Venkata Surya Koppeswara Rao Bhamidipati, Venkata Padmaja Korlipara, Karunakar Reddy Rondla, Satya Bhaskar Potula, Saravanan Krishnasamy, Badari Narayana Prasad Rachapudi