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:
Jun. 03, 2014
Filed:
May. 14, 2009
Castor oil fatty acid based estolide esters and their derivatives as potential lubricant base stocks
Satya Bhaskar Potula, Hyderabad, IN;
Venkata Padmaja Korlipara, Hyderabad, IN;
Venkata Surya Koppeswara Rao Bhamidipati, Hyderabad, IN;
Saravanan Krishnasamy, Hyderabad, IN;
Badari Narayana Prasad Rachapudi, Hyderabad, IN;
Satya Bhaskar Potula, Hyderabad, IN;
Venkata Padmaja Korlipara, Hyderabad, IN;
Venkata Surya Koppeswara Rao Bhamidipati, Hyderabad, IN;
Saravanan Krishnasamy, Hyderabad, IN;
Badari Narayana Prasad Rachapudi, Hyderabad, IN;
Council of Scientific & Industrial Research, New Delhi, IN;
Abstract
Castor oil was hydrolysed to castor fatty acids and self condensed to get a ricinoleic acid-based estolide of about 95 acid value. The carboxylic group of the estolide on subsequent esterification with linear or branched chain alcohols and also on acetylation of free hydroxy group yielded castor oil fatty acids based estolide esters and their acetates. All the products were evaluated for total acid number (TAN), viscosity, viscosity index, pour point, flash point, and copper strip corrosion and found to be potential lubricant basestocks.