IMPACT MODIFIED MELT-STABLE LACTIDE POLYMER COMPOSITIONS AND PROCESSES FOR MANUFACTURE THEREOF

IMPACT MODIFIED MELT-STABLE LACTIDE POLYMER COMPOSITIONS AND PROCESSES FOR MANUFACTURE THEREOF

The invention is directed toward melt-processable lactide polymer compositions, processes for manufacturing these compositions, and articles made from these compositions. The compositions include a first phase, which contains a polylactide-based polymer, and a second phase which includes elastomer....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KOLSTAD, JEFFREY, JOHN, HALL, ERIC, STANLEY, WITZKE, DAVID, ROY, HARTMANN, MARK, HENRY, RANDALL, JED, RICHARD, RYAN, CHRISTOPHER, MICHAEL, LUNT, JAMES
Format: Patent
Sprache:eng ; fre ; ger
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:The invention is directed toward melt-processable lactide polymer compositions, processes for manufacturing these compositions, and articles made from these compositions. The compositions include a first phase, which contains a polylactide-based polymer, and a second phase which includes elastomer. The elastomer is present in an amount sufficient to provide a polymer composition having an impact resistance of at least about 0.7 ft-lb/in. after the melt-processable polymer composition has been injection molded into bars and tested according to ASTM D256 (1993) method C. Preferably, the compositions also include a reactive compatibilizing agent. Methods of making these compositions and articles made from these compositions are also disclosed.