Functionnalisation of fatty substances
Référence
03622-01
Mots-clés
Statut des brevets
French patent application FR1002738 filed on June 30, 2010 entitled « Procéde de fonctionnalisation de corps gras d’origine naturelle »
Inventeurs
Bernard BOUTEVIN
Sylvain CAILLOL
Myriam DESROCHES
Statut commercial
Non-exclusive licenses, Collaborative agreement
Laboratoire
Institut Charles GERHARDT, a CNRS laboratory (UMR 5253) in Montpellier , France.
Description
CONTEXT
Today with the rising cost of petroleum base products, the environmental concerns, and the rarefaction of fossil raw materials there is a renewed interest in renewable resources. Triglycerides, fatty acids and esters derived from vegetable oils are very interesting renewable susbstances. Indeed, fatty acids have a long tradition as monomers in coating resins or as lubricants. They have been used as received from the plants as air-drying linseed oils or as parts of resins such as alkyds. All these fatty substances can be chemically modified. The thiol-ene coupling has been considered recently as a promising mechanism to functionalize the double bonds of fatty acids.
TECHNICAL DESCRIPTION
This invention provide a simple, one step and cheap process to functionalize the double bonds of fatty substances with various reactive functions. This process enables to functionalize fatty substances with a high conversion and with a control over their degree of functionalization.
The functionalized fatty substances could be step growth polymerized with different reactive molecules and even with other functionalized fatty substances in order to obtain polymers derived from renewable resources such as polyurethanes, epoxy resins…
BENEFITS
Thiol-ene reaction could be performed under UV, without any photoinitiator nor solvent, and with recycling of thiol reactant. This reaction allows to obtain easily new biobased reactants such as primary di- and polyols, primary polyamines, polyacids and polycyclocarbonates.
INDUSTRIAL APPLICATIONS
Polyols could be used in polyurethanes synthesis. Polyacids and polyamines could be used in epoxy resins synthesis. Owing to the broad range of glass transition temperatures obtained, polymers could be used in various applications from coatings to composites.
DEVELOPMENT STAGE
Functionalized fatty substances were produced at pilot scale to perform pre-industrial application trials in various formulations. Very interesting results were obtained compared to benchmark.
For further information, please contact us (Ref 03622-01)
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