Method for making a multi-layer blow molded container

Details Method for making a multi-layer blow molded container Method for making a multi-layer blow molded container

B - Operations, Transporting

29

C

B29C 49/22 (2006.01) B29C 51/02 (2006.01) B29C 51/04 (2006.01) B29C 51/14 (2006.01) B29C 45/00 (2006.01)

Patent

CA 2239218

A method for making a multi-layer blow molded container (10) is performed by spraying a sheet (34) of virgin polyethylene terephthalate with a pattern of barrier layer spots (36) prior to thermoforming at each barrier layer spot to provide a preform liner (24) about which polyethylene terephthalate (26) is injection molded to provide a multi-layer preform (10') from which the container is blow molded.

L'invention concerne un procédé pour fabriquer un récipient (10) à couches multiples moulé par soufflage, consistant à produire une feuille (34) de polyéthylène téréphtalate vierge à motif de points (36) de couche barrière avant le thermoformage en chaque point de couche barrière pour réaliser une préforme de base (24) autour de laquelle du polyéthylène téréphtalate (26) est appliqué par injection-moulage pour obtenir une préforme à couches multiples (10'), à partir de laquelle le récipient est moulé par soufflage.

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