IP Library › Granted Patent US 12,679,614
Granted Patent B2
US 12,679,614 · App. 18/004,096 · Granted Jul 14, 2026

Rigid biodegradable food container

Inventors: Julien Bras (St Martin d'uriage, FR); Agathe Mouren (La Seyne sur Mer, FR); Julia Chardot (Buc, FR); Karim Missoum (Pusignan, FR)
Assignee: Societe des Produits Nestle S.A.
B65D65/466B32B1/00B32B7/06B32B9/02B32B9/045B32B21/02B32B21/08B32B27/08B32B27/10B32B27/36B65D1/0215B65D65/40B65D65/42B65D81/24B32B2307/7163B32B2307/7246B32B2307/7376B32B2307/738B32B2439/60B32B2439/62B32B2439/70B65D2565/385B65D2565/387
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Quick Facts
Patent No.
US 12,679,614
App. No.
18/004,096
Granted
Jul 14, 2026
Kind
B2
Abstract

The present invention relates generally to the field of biodegradable food containers. In particular, the present invention relates to rigid food containers comprising at least one layer comprising polyhydroxyalkanoate (PHA) and another layer comprising cellulosic fibres. For example, the food container may be a food bottle. One embodiment of the present invention relates to a rigid biodegradable food container comprising an inner container comprising at least one PHA biodegradable polymer and an outer container comprising cellulose.

Claims (15)

1 . A rigid biodegradable food container comprising at least one layer comprising at least one polyhydroxyalkanoate (PHA) and another layer comprising cellulosic fibres, the rigid biodegradable food container comprising

an inner container comprising at least one PHA and at least one biodegradable polymer which is poly(butylene succinate) (PBS), and

an outer container comprising cellulose.

2 . The rigid biodegradable food container in accordance with claim 1 , wherein the inner container has a wall thickness in the range of about 20 to 250 μm.

3 . The rigid biodegradable food container in accordance with claim 1 , wherein the inner container has a water vapor transmission rate in the range of 50 g/(m 2 ×24 h) or below.

4 . The rigid biodegradable food container in accordance with claim 1 , wherein the inner container has a volume in the range of about 100 ml to 5 l.

5 . The rigid biodegradable food container in accordance with claim 1 , wherein the outer container comprises cellulose containing fibres.

6 . The rigid biodegradable food container in accordance with claim 1 , wherein the outer container has a wall thickness in the range of about 0.5 to 2 mm.

7 . The rigid biodegradable food container in accordance with claim 1 , wherein the inner container can be exchanged while the outer container is re-used.

8 . The rigid biodegradable food container in accordance with claim 7 , wherein the outer container can be opened and re-closed.

9 . The rigid biodegradable food container in accordance with claim 1 , wherein the inner container is laminated to the outer container.

10 . The rigid biodegradable food container in accordance with claim 9 , wherein the lamination is carried out by a process comprising the steps of heating the inner container in contact with the outer container and thermoforming the inner container against the outer container.

11 . The rigid biodegradable food container in accordance with claim 1 , wherein the inner container is spray-coated onto the outer container.

12 . The rigid biodegradable food container in accordance with claim 1 , wherein the outer container comprises 100% cellulose.

13 . The rigid biodegradable food container in accordance with claim 1 , wherein the food container is a food bottle and the neck of the food bottle comprises at least one PHA.