C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/89 (2006.01) C08G 63/90 (2006.01) C12P 7/62 (2006.01)
Patent
CA 2580604
The present invention relates to a process for extracting polyhydroxyalkanoate from a biomass, comprising contacting the biomass with an organic solvent for a time, at a first temperature, and under a pressure that are sufficient to extract polyhydroxyalkanoate from the biomass to provide a composition comprising the organic solvent and polyhydroxyalkanoate; cooling the composition at a second temperature, which is at least about 10~C lower than the first temperature; and mixing the composition at a second temperature with a power to volume ratio of from about 0.001 KW/m3 to about 100 KW/m3.
La présente invention concerne un procédé d'extraction de polyhydroxyalcanoate à partir d'une biomasse. Le procédé consiste à mettre en contact la biomasse avec un solvant organique pendant un certain temps, à une première température et dans des conditions de pression suffisantes pour extraire le polyhydroxyalcanoate de la biomasse afin d'obtenir une composition qui renferme le solvant organique et le polyhydroxyalcanoate; à refroidir ensuite la composition à une deuxième température, qui est au moins inférieure de 10 °C à la première température; puis à mélanger la composition à une deuxième température avec un rapport puissance/volume compris entre environ 0,001 KW/m3 et environ 100 KW/m3.
Buescher Susan
Cearley Angella Christine
Gibson Michael Steven
Narasimhan Karunakaran
Severson Roland George Jr.
Dimock Stratton Llp
The Procter & Gamble Company
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