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US 10,239,292 B2Granted
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 (PBSA), poly lactic acid (PLA), 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 PBSA The biodegradable sheet may further include at least one metalized, biodegradable, laminate layer.
A multi-layered biodegradable sheet, wherein at least one layer of the multi-layered biodegradable sheet 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 terephthalate (PBAT), polydioxanone (PDO), polyglycolic acid (PGA) and any mixture thereof, and wherein the multi-layered biodegradable sheet comprises at least one additional layer comprising a polymer selected from the group consisting of PBS, PBSA, and any mixture thereof,
Dependencies are inferred from the claim text.