Modified hot runner systems for injection blow molding
AssigneeKeiryo Packaging SA
InventorSteven Dircx
Life of this patent
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Abstract
A preform suitable for blow molding made out of crystallizable polymers made by biaxially stretching the preform by blowing to form a container. The preform having regular or irregular sequence of variations in molecular pre-alignment/orientation and regular or irregular sequence of variations in crystallinity between different locations of the cross-section of the preform.
Claims7
A preform suitable for blow molding made out of crystallizable polymers, wherein the preform comprises a regular sequence of variations in molecular pre-alignment/orientation between different locations of a wall cross-section of the preform.
A preform suitable for blow molding made out of crystallizable polymers, wherein the preform comprises a regular sequence of variations in molecular pre-alignment/orientation and regular or irregular sequence of variations in crystallinity between different locations of a wall cross-section of the preform.
Dependencies are inferred from the claim text.