Multilayer preform for hot fill containers

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

1988-09-16

1989-07-11

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 367, 428212, 428213, 428480, 428483, 4285428, 215 1C, 220453, 264255, B65D 2300

Patent

active

048471291

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.

REFERENCES:
patent: 4550043 (1985-10-01), Beck
patent: 4609516 (1986-09-01), Krishnakumar et al.
patent: 4743479 (1988-05-01), Nakamura et al.
patent: 4781954 (1988-11-01), Krishnakumar et al.

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