The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2013
Filed:
May. 14, 2009
Venkata Surya Koppeswara Rao Bhamidipati, Hyderabad, IN;
Venkata Padmaja Korlipara, Hyderabad, IN;
Karunakar Reddy Rondla, Hyderabad, IN;
Satya Bhaskar Potula, Hyderabad, IN;
Saravanan Krishnasamy, Hyderabad, IN;
Badari Narayana Prasad Rachapudi, Hyderabad, IN;
Venkata Surya Koppeswara Rao Bhamidipati, Hyderabad, IN;
Venkata Padmaja Korlipara, Hyderabad, IN;
Karunakar Reddy Rondla, Hyderabad, IN;
Satya Bhaskar Potula, Hyderabad, IN;
Saravanan Krishnasamy, Hyderabad, IN;
Badari Narayana Prasad Rachapudi, Hyderabad, IN;
Council of Scientific & Industrial Research, New Delhi, IN;
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 byH 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.