초록 ▼

A blow molded container which is formed of a polyester resin which has formation and shape characteristics wherein it may be hot filled with a liquid at a temperature on the order of 180°-185°F. with a maximum volumetric shrinkage of no greater than 1 percent. The container is formed from a speciall

A blow molded container which is formed of a polyester resin which has formation and shape characteristics wherein it may be hot filled with a liquid at a temperature on the order of 180°-185°F. with a maximum volumetric shrinkage of no greater than 1 percent. The container is formed from a specially configurated injection molded preform which is initially stretched axially only on the order of 25 percent, after which the preform is inflated and blow molded within a blow mold to a configuration which resists vacuum collapse or paneling of the body.

대표청구항 ▼

A preform for forming a blow molded hot fill container, said preform being formed of a polyester resin and including a base portion, a body portion, a neck finish portion and a neck to body transition, said neck finish portion including a lower flange immediately adjacent said neck to body transitio

A preform for forming a blow molded hot fill container, said preform being formed of a polyester resin and including a base portion, a body portion, a neck finish portion and a neck to body transition, said neck finish portion including a lower flange immediately adjacent said neck to body transition, said neck to body transition has a portion of minimum cross section in its entirety spaced from said flange, said minimum cross section portion being of a lesser thickness than said body portion, and said neck to body transition flaring in thickness to said body portion.