Plastic preform having reinforced container base forming...

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

B - Operations, Transporting

29

C

190/26

B29C 49/22 (2006.01) B29C 45/16 (2006.01) B29C 49/06 (2006.01) B65D 1/02 (2006.01)

Patent

CA 2004356

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.

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