Process for producing polyhydroxyalkanoate crystal

Details Process for producing polyhydroxyalkanoate crystal Process for producing polyhydroxyalkanoate crystal

C - Chemistry, Metallurgy

08

G

C08G 63/88 (2006.01)

Patent

CA 2544588

A process in which a biodegradable polyhydroxyalkanoate can be easily obtained by a solvent extraction technique. There is provided a process for producing a polyhydroxyalkanoate crystal, characterized in that a solution obtained by dissolving a polyhydroxyalkanoate in a good solvent is mixed with a poor solvent at 50 to 130~C to thereby effect polyhydroxyalkanoate crystallization.

L'invention concerne un procédé dans lequel un polyhydroxyalcanoate biodégradable peut aisément être obtenu par le biais d'une technique d'extraction au solvant. Ce procédé de production de cristal polyhydroxyalcanoate, est caractérisé en ce qu'une solution obtenue par dissolution d'un polyhydroxyalcanoate dans un bon solvant est mélangée à un solvant pauvre à une température comprise entre 50 et 130 ·C afin de produire la cristallisation du polyhydroxyalcanoate.

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