Synthetic resin preform to be biaxially stretched and blow...

Details Synthetic resin preform to be biaxially stretched and blow... Synthetic resin preform to be biaxially stretched and blow...

2006-10-03

2006-10-03

Patterson, Marc A. (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S034100, C428S034300, C428S035900, C428S036600, C428S036700, C220S062200, C220S062220

Reexamination Certificate

active

07115309

ABSTRACT:
The blow molded preform of a laminated wall structure comprises a bulging shoulder portion which has a diameter that widens slightly in the downward direction; a bottom shell portion for molding a bottom, which has been blow molded from a corresponding portion of a parison so as to have a widened and deformed shape; an inner overhang wall portion in any position starting from the opposite side of a neck ring and ending at the upper portion of a bulging shoulder portion, with an inner wall portion having a diameter that widens in the downward direction; and/or a radially widened connecting portion of an arced shape, which has a larger diameter than a barrel portion so that the entire bottom including a bottom shell portion takes a bulging spherical shape.

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