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1. WO1995033065 - PROCESS FOR RECOVERING POLYHYDROXYALKANOATES USING CENTRIFUGAL FRACTIONATION

Publication Number WO/1995/033065
Publication Date 07.12.1995
International Application No. PCT/US1995/006651
International Filing Date 25.05.1995
Chapter 2 Demand Filed 27.12.1995
IPC
C08G 63/06 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
02Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds
06derived from hydroxy carboxylic acids
C08G 63/89 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
88Post-polymerisation treatment
89Recovery of the polymer
C12P 7/62 2006.01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
62Carboxylic acid esters
CPC
C08G 63/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
06derived from hydroxycarboxylic acids
C08G 63/89
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
88Post-polymerisation treatment
89Recovery of the polymer
C12P 7/625
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
62Carboxylic acid esters
625Polyesters of hydroxy-carboxylic acids
Applicants
  • THE PROCTER & GAMBLE COMPANY [US]/[US]
Inventors
  • NODA, Isao
Agents
  • REED, T., David
Priority Data
08/251,82801.06.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR RECOVERING POLYHYDROXYALKANOATES USING CENTRIFUGAL FRACTIONATION
(FR) PROCEDE DE RECUPERATION DE POLYHYDROALCANOATES AU MOYEN D'UN FRACTIONNEMENT CENTRIFUGE
Abstract
(EN)
The present invention relates to a process for recovering polyhydroxyalkanoate from a biological source material containing the polyhydroxyalkanoate, the process comprising: a) comminuting the biological source material; b) suspending the comminuted biological source material in a fluid; c) partitioning the polyhydroxyalkanoate from the other components of the biological source material by centrifugal fractionation to form a solid-solid separation; and d) recovering the polyhydroxyalkanoate.
(FR)
L'invention concerne un procédé de récupération de polyhydroalcanoates à partir d'un matériau source biologique contenant les polyhydroalcanoates. Ce procédé consiste à: a) fragmenter le matériau source biologique; b) mettre en suspension ledit matériau fragmenté dans un liquide; c) séparer les polyhydroalcanoates des autres constituants dudit matériau par fractionnement centrifuge, afin d'obtenir une séparation solide-solide; d) récupérer le polyhydroalcanoate.
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