BIODEGRADABLE POLYHYDROXYALKANOATE COPOLYMERS HAVING IMPROVED CRYSTALLIZATION PROPERTIES

BIODEGRADABLE POLYHYDROXYALKANOATE COPOLYMERS HAVING IMPROVED CRYSTALLIZATION PROPERTIES

Compositions having improved crystallization properties and physical properties including a continuous phase of a first biodegradable polyhydroxyalkanoate comprising a copolymer, or a blend thereof, of at least two randomly repeating monomer units and having a melting point Tm1, and a second crystal...

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Bibliographische Detailangaben
1. Verfasser: AUTRAN MARIE JEAN-PHILIPPE AUTRAN
Format: Patent
Sprache:eng ; spa
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:Compositions having improved crystallization properties and physical properties including a continuous phase of a first biodegradable polyhydroxyalkanoate comprising a copolymer, or a blend thereof, of at least two randomly repeating monomer units and having a melting point Tm1, and a second crystallizable biodegradable polyhydroxyalkanoate homopolymer or copolymer, which comprises at least one randomly repeating monomer unit and has a melting point Tm2, where Tm2 is at least about 20 C. greater than Tm1. The compositions are formed by solution or melt blending of the components and may be formed into shaped articles.