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1. (WO2001034826) METHOD FOR THE PRODUCTION OF A HOMO- OR COPOLYMER OF A POLY-$g(b)-HYDROXYALKANOIC ACID (PHA) FROM BIOMASS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/034826 International Application No.: PCT/EP2000/010442
Publication Date: 17.05.2001 International Filing Date: 20.10.2000
Chapter 2 Demand Filed: 07.06.2001
IPC:
C08G 63/89 (2006.01) ,C12P 7/62 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
88
Post-polymerisation treatment
89
Recovery of the polymer
C CHEMISTRY; METALLURGY
12
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
P
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7
Preparation of oxygen-containing organic compounds
62
Carboxylic acid esters
Applicants:
SCHUMANN, Dirk [DE/DE]; DE (UsOnly)
WENDLANDT, Karin-Dagmar [DE/DE]; DE (UsOnly)
UFZ UMWELTFORSCHUNGSZENTRUM LEIPZIG-HALLE GMBH [DE/DE]; Permoserstrasse 15 04318 Leipzig, DE (AllExceptUS)
Inventors:
SCHUMANN, Dirk; DE
WENDLANDT, Karin-Dagmar; DE
Agent:
ZIEBIG, Marlene, K. ; Gulde Hengelhaupt Ziebig Schützenstrasse 15 - 17 10117 Berlin, DE
Priority Data:
199 55 381.510.11.1999DE
Title (EN) METHOD FOR THE PRODUCTION OF A HOMO- OR COPOLYMER OF A POLY-$g(b)-HYDROXYALKANOIC ACID (PHA) FROM BIOMASS
(FR) PROCEDE PERMETTANT D'OBTENIR UN HOMOPOLYMERE OU UN COPOLYMERE D'UN ACIDE POLY-$g(b)-HYDROXYALKANOIQUE (PHA) DE LA BIOMASSE
(DE) VERFAHREN ZUR GEWINNUNG EINES HOMO- ODER COPOLYMERS EINER POLY-$g(b)-HYDROXYALKANSÄURE (PHA) AUS BIOMASSE
Abstract:
(EN) The invention relates to a method for the production of a homo- or copolymer of a poly-$g(b)-hydroxyalkanoic acid (PHA) from biomass, characterized in that the biomass is extracted by 1-methyl-2-pyrrolidone (NMP), optionally using a water binding agent, from a viscous suspension which forms at a temperature $m(G) of 40 °C. PHA-containing solution is separated out and PHA is subsequently precipitated out.
(FR) L'invention concerne un procédé permettant d'obtenir un homopolymère ou un copolymère d'un acide poly-$g(b)-hydroxyalkanoique (PHA) de la biomasse. Ce procédé est caractérisé en ce que la biomasse est extraite avec de la 1-méthyl-2-pyrrolidone (NMP) éventuellement par apport d'un agent de rétention d'eau. La solution contenant du PHA est séparée de la suspension visqueuse obtenue à des températures $m(G) 40 °C. Enfin, le PHA est précipité.
(DE) Die Erfindung betrifft ein Verfahren zur Gewinnung eines Homo- oder Copolymers einer Poly-$g(b)-hydroxyalkansäure (PHA) aus Biomasse, das dadurch gekennzeichnet ist, daß die Biomasse mit 1-Methyl-2-pyrrolidon (NMP) ggf. unter Zusatz eines wasserbindenden Mittels extrahiert wird, aus der entstehenden viskosen Suspension bei Temperaturen $m(G) 40 °C die PHA-enthaltende Lösung abgetrennt und anschließend die PHA ausgefällt wird.
Designated States: BR, CN, US
Publication Language: German (DE)
Filing Language: German (DE)