Novel polyols derived from a vegetable oil using an...

C - Chemistry – Metallurgy – 11 – C

Patent

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Details

C11C 3/00 (2006.01) C07C 69/22 (2006.01) C07C 69/30 (2006.01) C08G 18/36 (2006.01) C08G 18/76 (2006.01)

Patent

CA 2599983

A method for producing a vegetable oil-derived polyol having increased hydroxyl functionality by reacting a vegetable oil with an oxidizing agent in the presence of an organometallic catalyst is provided. The resulting higher functionality polyols derived from vegetable oil produced by the process are also provided. Also provided is a method for decreasing the acid value of a vegetable oil-derived polyol by reacting the vegetable oil-derived polyol with an epoxide component in the presence of a Lewis base catalyst. Urethane products produced using higher functional vegetable oil-derived polyols and/or lower acid vegetable oil-derived polyols are also provided.

L'invention se rapporte à un procédé de fabrication d'un polyol issu d'une huile végétale présentant une meilleure fonctionnalité d'hydroxyle par réaction d'une huile végétale avec un agent oxydant en présence d'un catalyseur organométallique. L'invention concerne aussi les polyols à fonctionnalité supérieure obtenus issus de l'huile végétale fabriqués selon ce procédé. Elle porte également sur un procédé de diminution de la valeur d'acide d'un polyol issu d'une huile végétale par réaction du polyol issu de l'huile végétale avec un composant époxyde en présence d'un catalyseur à base de Lewis. L'invention se rapporte aussi à des produits d'uréthane fabriqués au moyen des polyols issus d'huile végétale à fonctionnalité supérieure et/ou de polyols issus d'huile végétale à acidité inférieure.

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