Biodegradable moldable products and films comprising blends of starch esters and polyesters
First Claim
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1. A biodegradable moldable product or film product prepared from a compatible blend comprising a biodegradable, hydrophobic, water repellant, amorphous, starch ester having a degree of substitution of about 1.0 to about 2.5 DS and a biodegradable polyester selected from the class consisting of poly (ε
- -caprolactone) (PCL), poly(lactic acid) or polylactide (PLA), poly(glycolic acid) or polyglycolide (PGA), bacterial and synthetic poly(β
-hydroxybutyrate-co-β
-hydroxyvalerate) (PHB/V) and poly(β
-hydroxyalkanoates) (PHA).
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Abstract
Biodegradable moldable products and films prepared from a compatible blend containing a biodegradable, hydrophobic, starch ester and a biodegradable polyester, and optionally a biodegradable and miscible plasticizer and/or a compatible filler.
137 Citations
13 Claims
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1. A biodegradable moldable product or film product prepared from a compatible blend comprising a biodegradable, hydrophobic, water repellant, amorphous, starch ester having a degree of substitution of about 1.0 to about 2.5 DS and a biodegradable polyester selected from the class consisting of poly (ε
- -caprolactone) (PCL), poly(lactic acid) or polylactide (PLA), poly(glycolic acid) or polyglycolide (PGA), bacterial and synthetic poly(β
-hydroxybutyrate-co-β
-hydroxyvalerate) (PHB/V) and poly(β
-hydroxyalkanoates) (PHA). - View Dependent Claims (2, 3, 4, 5, 6, 7)
- -caprolactone) (PCL), poly(lactic acid) or polylactide (PLA), poly(glycolic acid) or polyglycolide (PGA), bacterial and synthetic poly(β
-
8. A moldable composition comprising a compatible thermoplastic blend of a biodegradable, predominantly amorphous, hydrophobic, water repellant, starch ester having a degree of substitution (DS) of about 1.0 to about 2.5 DS and a biodegradable polyester is selected from the group consisting of poly(ε
- -caprolactone) (PCL), poly(lactic acid) or polylactide (PLA), poly(glycolic acid) or polyglycolide (PGA), bacterial and synthetic poly(β
-hydroxybutyrate-co-β
-hydroxyvalerate) (PHB/V), poly(β
-hydroxyalkanoates) (PHA), and aliphatic biodegradable polyesters. - View Dependent Claims (9, 10, 11, 12, 13)
- -caprolactone) (PCL), poly(lactic acid) or polylactide (PLA), poly(glycolic acid) or polyglycolide (PGA), bacterial and synthetic poly(β
Specification