Complexed starch-containing compositions having high mechanical properties

Heterophasic compositions comprising starch and a thermoplastic polymer that is incompatible with the starch, in which the starch constitutes the discontinuous phase and the thermoplastic polymer the continuous matrix, having an impact strength greater than 30 KJ/m2 (measured on blown film of 30 mic...

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Bibliographische Detailangaben
Hauptverfasser: V. BELLOTTI, G. DEL TREDICI, C. BUSTIOCI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Heterophasic compositions comprising starch and a thermoplastic polymer that is incompatible with the starch, in which the starch constitutes the discontinuous phase and the thermoplastic polymer the continuous matrix, having an impact strength greater than 30 KJ/m2 (measured on blown film of 30 microns thick at 10 DEG C and RH less than 5%), and further characterised by the presence in the X-ray diffraction spectrum of a peak at an angle 2-theta from 13 to 14 DEG the ratio of the intensity of which to that of the peak of the amorphous starch which occurs at 20.5 DEG , is less than 2 and greater than 0.02.