Method for manufacturing a PHA container
AssigneeSociete des Produits Nestle S.A.
InventorsLaurent Henriquel, Charlyse Pouteau, Johannes Zimmer, KArson Durie
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Abstract
The invention relates to a method for manufacturing a plastic container, the method comprising the following steps: o providing an injected preform, o heating the preform (S2), and o performing stretch blow molding (S3) of the preform, thereby forming the container. The preform is made of a material comprising 40 to 99.9 weight percent of Polyhydroxyalkanoate (PHA). In the heating step, the preform is brought to a temperature comprised in a range between 1° C. and 20° C. under the melting temperature of the PHA. The present invention thus makes it possible to perform ISBM of Polyhydroxyalkanoate to produce a plastic container.
Claims19
A method for manufacturing a plastic container, the method comprising:
- providing an injected preform,
- heating the preform, and
- performing stretch blow molding of the preform, thereby forming the container
- wherein,
- the preform is made of a material comprising 40 to 99.9 weight percent of Polyhydroxyalkanoate (PHA),
- in the heating step, the preform is brought to a temperature of between 1 C and 20° C. under the melting temperature of the PHA, and
- the container further comprises poly(hydroxyalkanoate) s comprising a terpolymer made up from 75 to 99.9 mole percent monomer residues of 3-hydroxybutyrate, from 0.1 to 25 mole percent monomer residues of 3-hydroxyhexanoate, and from 0.1 to 25 mole percent monomer residues of a third 3-hydoxyalkanoate selected from the group consisting of poly(hydroxyhexanoate), poly(hydroxyoctanoate), poly(hydroxydecanoate), and mixtures thereof.
Dependencies are inferred from the claim text.