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US 12,528,910 B2Granted
Method for producing polyhydroxyalkanoate and use of same
AssigneeKaneka Corporation
InventorMasaru Hirano
Life of this patent
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Abstract
The object of the present invention is to provide a production method which makes it possible to obtain a PHA with a simple operation. The object can be attained by providing a method for producing a polyhydroxyalkanoate, the method including the steps of: (a) preparing an aqueous polyhydroxyalkanoate suspension having a pH of not more than 7; and (b) heating the aqueous polyhydroxyalkanoate suspension, prepared in the step (a), at a temperature set at 80° C. to 300° C. in a twin screw extruder so as to aggregate a polyhydroxyalkanoate.
Claims8
A method for producing a polyhydroxyalkanoate, comprising:
- (a) preparing an aqueous polyhydroxyalkanoate suspension having a pH of 7 or less;
- and
- (b) heating the aqueous polyhydroxyalkanoate suspension, prepared in (a), at a temperature set at 80° C. to 300° C. in a twin screw extruder so as to aggregate a polyhydroxyalkanoate,
- wherein a pressure in the twin screw extruder is from 0.01 MPa to 0.5 MPa.
1 more element
Dependencies are inferred from the claim text.