Multilayer preform for hot fill containers

Details Multilayer preform for hot fill containers Multilayer preform for hot fill containers

B - Operations, Transporting

29

C

190/26.1

B29C 49/22 (2006.01) B29C 45/16 (2006.01) B65D 1/02 (2006.01)

Patent

CA 1330059

ABSTRACT This relates to the formation of a preform for a container which is formed primarily of PET and like saturated polyesters which are to be utilized in the packaging of a hot fill liquid and like product, particularly a container wherein a metal closure is to be utilized. The preform is of a laminated construction with the body of the preform being of a five layer construction and the neck finish portion being primarily of a three layer construction including outer layers of PET or like saturated polyester and a core formed of a high Tg polymer. The same high Tg polymer would be in the form of thin layers in the body of the preform between inner and outer layers and a core.

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