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US 2010/0076099 A1Published application
Biodegradable polymeric nanocomposite compositions particularly for packaging
AssigneeBoard of Trustees of Michigan State University
InventorsAmar K. Mohanty, Yashodhan Parulekar, Mariappan Chidambarakumar, Napawan Kositruangchai, Bruce R. Harte
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Abstract
Specific polymer blends of polylactic acid (PLA) and polyhydroxybutyrate (PHB) and poly-(butylenes adipate-co-terephthalate (PBAT) as a fatty acid quaternary ammonium modified clay. The blends are particularly useful for barrier packaging.
Claims13
A composition which comprises:
- a reactively blended mixture of:
- (a) a first polymer which is polyhydroxybutyrate (PHB);
- (b) a second polymer which is poly-(butylene adipate-co-terephthalate (PBAT), wherein (i) the weight ratio of (a) to (b) is between about 70:30 and 30:70, (ii) the composition has a percent elongation in the break of between 6% and 568%, and (iii) the composition has an Izod impact between about 87 J/m and 665 J/m;
- and
- (c) a quaternary ammonium salt modified clay in an amount between about 1% and 10% by weight of (a) and (b).
2 more elements
-7. (canceled)
-11. (canceled)
A composition which comprises:
- a reactively blended mixture of:
- (a) a first polymer which is polyhydroxybutyrate (PHB);
- (b) a second polymer which is poly-(butylene adipate-co-terephthalate (PBAT), wherein (i) the weight ratio of (a) to (b) is between about 70:30 and 30:70, (ii) the composition has a percent elongation in the break of between 6% and 568%, and (iii) the composition has an Izod impact between about 87 J/m and 665 J/m;
- and
- (c) an organically modified clay in an amount between about 1% and 10% by weight of (a) and (b);
- wherein the composition is in the form of a film.
3 more elements
Dependencies are inferred from the claim text.