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US 10,675,845 B2Granted
Biodegradable sheets
AssigneeTipa Corp. Ltd.
InventorsTal Neuman, Nili Konieczny, Itai Pelled
Life of this patent
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Abstract
The present invention relates to a biodegradable sheet comprising at least two polymer layers, wherein a first polymer layer comprises a mixture of at least two different biodegradable polymers selected from the group consisting of PLA, PCL, PBS and PBSA; and wherein a second polymer layer comprises a biodegradable polymer selected from the group consisting of PBS, PBSA, a mixture of PLA and PBS, and a mixture of PLA and PBSA.
Claims14
A biodegradable sheet comprising three polymer layers,
- wherein a first polymer layer comprises a mixture comprising PBSA at a concentration of from about 65 to about 85% (w/w) of the mixture and PLA at a concentration of from about 15 to about 35% (w/w) of the mixture;
- wherein a second polymer layer comprises PBSA;
- and
- wherein a third polymer layer consists of 100% (w/w) PBAT, wherein the PBAT consists of butylene, adipate, and terephthalate units,
- wherein said third polymer layer is situated between said first polymer layer and said second polymer layer.
2 more elements
A biodegradable sheet consisting of three polymer layers,
- wherein a first polymer layer consists of a mixture of PBSA and PLA, wherein PBSA is present at a concentration of about 75% (w/w) of the mixture and PLA is present at a concentration of about 25% (w/w) of the mixture;
- wherein a second layer consists of PBSA;
- and
- wherein a third layer consists of PBAT, wherein the PBAT consists of butylene, adipate, and terephthalate units,
- wherein said third polymer layer is situated between said first polymer layer and said second polymer layer.
2 more elements
A biodegradable sheet comprising three polymer layers,
- wherein a first polymer layer comprises a mixture comprising PBSA at a concentration of about 85% (w/w) of the mixture and PLA at a concentration of about 15% (w/w) of the mixture;
- wherein a second polymer layer comprises a mixture comprising PBSA at a concentration of about 85% (w/w) of the mixture and PLA at a concentration of from about 15% (w/w) of the mixture;
- and
- wherein a third polymer layer consists of 100% (w/w) PBAT, wherein the PBAT consists of butylene, adipate, and terephthalate units,
- wherein said third polymer layer is situated between said first polymer layer and said second polymer layer.
2 more elements
Dependencies are inferred from the claim text.