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US 2016/0257098 A1Published application
Biodegradable sheet
AssigneeTipa Corp. Ltd.
InventorsDaphna NISSENBAUM, Tal NEUMAN, Dori PELLED, Shai GARTY, Nili KONIECZNY
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AssigneeTipa Corp. Ltd.
InventorsDaphna NISSENBAUM, Tal NEUMAN, Dori PELLED, Shai GARTY, Nili KONIECZNY
Estimating the term…
Disclosed is a biodegradable sheet comprising at least one layer which is a direct contact layer, intended to successfully contact materials, such as liquids, while maintaining the mechanical properties of the sheet and to extend the biodegradable sheet shelf life. The direct contact layer may comprise a hydrophobic polymer selected from poly(epsilon-caprolactone) (PCL) polyhydroxybutyrate (PHB), Polydioxanone (PDO) polyglycolic acid (PGA), polybutylene succinate (PBS), polybutylene succinate adipate (PBS A), poly lactic acid (PL A), polybutylene adipate terphtalate (PBAT), polyhydroxyalkanoates (PHA), such as polyhydroxybutyrates (PHB), polyhydroxyvalerates (PHV), and polyhydroxybutyrate-hydroxyvalerate copolymers (PHBV) or any mixture thereof. The biodegradable sheet may further comprise surface treated nanoclay particles, PVOH grafted with a crosslinker and PBS or PBS A The biodegradable sheet may further include at least one metalized, biodegradable, laminate layer.
A biodegradable sheet, having at least one layer, wherein the layer comprises a first hydrophobic polymer selected from the group consisting of poly(epsilon-caprolactone) (PCL), a polyhydroxyalkanoate (PHA) and a mixture thereof, and a second hydrophobic polymer selected from the group consisting of polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), poly lactic acid (PLA), polybutylene adipate terphialate (PBAT), polydioxanone (PDO), polyglycolic acid (PGA) and any mixture thereof.
2-3. (canceled)
5-6. (canceled)
12-14. (canceled)
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The biodegradable sheet of claim, 11, wherein the sheet is a five-layered sheet, comprising a first layer and a fifth layer comprising about 25% w/w of a first hydrophobic polymer and about 75% of a mixture of a second hydrophobic polymer selected from the group consisting of a mixture of PBS and PBSA, a mixture of PBS and PLA, a mixture of PBSA and PLA, and a mixture of PBAT and PLA;
The biodegradable sheet of claim, 11, wherein the sheet is a five-layered sheet comprising a first layer and a fifth layer comprising about 40% w/w of a first hydrophobic polymer and about 60% of a second hydrophobic polymer selected from the group consisting of PBS, PBSA, PLA and PBAT and wherein the first of fifth layer is a contact layer.
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30-31. (canceled)
Dependencies are inferred from the claim text.