Plastic preform having reinforced container base forming portion

Details Plastic preform having reinforced container base forming portion Plastic preform having reinforced container base forming portion

1988-12-01

1990-03-20

Seidleck, James

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

215 1C, 215 121, 428212, 4285428, B65D 2300

Patent

active

049100548

ABSTRACT:
A blown plastic container of a type normally blown from a single resin preform, such as PET, wherein the bases of a three layer construction with at least one layer either being PET having a high IV or a resin which has a high Tg. The secondary resin may either be in the form of a core layer injected into the base of the injection molded preform or in the form of initially injected inner and outer base layers. By utilizing a small amount of the second resin, greater strength can be obtained together with a greater resistance to cracking at higher temperatures as well as the reduction in the overall weight of the resultant container.

REFERENCES:
patent: 4535901 (1985-08-01), Okudaira et al.

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