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:
Aug. 20, 2002
Filed:
Sep. 22, 1998
Applicant:
Inventors:
Srinivasan Subbagiri Ramaswamy Iyengar, Pune, IN;
Raut Kundalik Ganpat, Pune, IN;
Saxena Prabhat Kumar, Pune, IN;
Sivaram Swaminathan, Pune, IN;
Assignee:
C.S.I.R., New Delhi, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/48 ;
U.S. Cl.
CPC ...
C08J 5/48 ;
Abstract
A novel compound bearing urethane linkage of formula as shown herebelow, which is an adduct of ricinoleic ester and isocyanate, useful as a plasticizer for polyvinylchloride (PVC) and a process for the preparing the compound bearing urethane linkage by reacting fatty acid esters bearing hydroxyl groups with an organic isocyanate in the presence of a catalyst at a temperature in the range of 30°-100° C.