METHOD FOR MANUFACTURING A BOTTLE

• Main Authors: ZIMMER, Johannes, POUTEAU, Charlyse, HENRIQUEL, Laurent
• Format: Patent
• Language: English; French
• Published: 11.05.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A method for manufacturing a bottle, using a preform (1) comprising an open neck portion (2) at a first end (12), a closed base portion (3) at asecond end (13), and a body portion (4) extending along a longitudinal axis (A1) between the neck portion (2) and the base portion (3), said preform (1) being made in PHA. The method for manufacturing comprises the following steps:- heating the preform (1); and- performing stretch blow molding of the preform (1).The preform (1) has a wall thickness which varies progressively between the body portion (4) and the neck portion (2). L'invention concerne une méthode de fabrication d'une bouteille, à l'aide d'une préforme (1) comprenant une partie col ouverte (2) au niveau d'une première extrémité (12), une partie base fermée (3) au niveau d'une seconde extrémité (13), et une partie corps (4) s'étendant le long d'un axe longitudinal (A1) entre la partie col (2) et la partie base (3), ladite préforme (1) étant réalisée en PHA. Le procédé de fabrication comprend les étapes suivantes:- le chauffage de la préforme (1) ; et -la réalisation d'un moulage par étirage-soufflage de la préforme (1). La préforme (1) a une épaisseur de paroi qui varie progressivement entre la partie corps (4) et la partie col (2).