Preform Extended Finish For Processing Light Weight Ecologically Beneficial Bottles

摘要

Disclosed are preforms which incorporate improvements in the region of the neck and upper segment of the body to allow the production of lightweight containers, such as bottles suitable for containing water or other beverages. In accordance with certain embodiments, the improvements include a thinner neck finish area than conventional bottles, where the thinner area is extended into the upper segment of the body portion below the support ring. Reducing the thickness in these areas of the bottle allows for less resin to be used in forming the preform and bottle.

主权项

1. A plastic preform suitable for forming a bottle, comprising:
a neck portion adapted to engage a closure and including a support ring at its lowermost point, the neck portion having a first wall thickness; and an elongated body portion including a generally cylindrical wall portion and an end cap; wherein an upper segment of the body portion adjacent to the support ring has a second wall thickness substantially similar to the first wall thickness and less than a third wall thickness in a lower segment of the body portion.