Methods for production of polyols from oils and their use in the production of polyesters and polyurethanes
CA 2605527 C · Owner: Battelle Memorial Institute · Inventors: Vijayendran, Bhima Rao; Benecke, Herman Paul; Garbark, Daniel B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods to convert biobased oils, oil derivatives and modified oils to highly , functionalized esters ester polyols, amides, and amide polyols. The products can be used to make polyurethane and polyester films and foams.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 26, 2006 and granted July 30, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.