发明申请
US20160250795A1 HIGH STRETCH RATIO PREFORMS AND RELATED CONTAINERS AND METHODS 有权
高速比预期和相关容器及方法

HIGH STRETCH RATIO PREFORMS AND RELATED CONTAINERS AND METHODS
摘要:
A generally hollow preform for making a stretch blow-molded container may include a threaded finish portion; a neck portion depending from the finish portion; a transition portion depending from the neck portion; a main portion depending from the transition portion; and a closed, generally rounded tip portion depending from the main portion. The preform may include stretch ratios with respect to the container including an axial stretch ratio of about 3.0 to 3.5, a hoop stretch ratio of about 5.0 to 5.5, and a total stretch ratio of about 15 to 19.25. In some embodiments, high stretch ratios may be achieved with less material, yielding substantial cost savings.
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