BLOW MOLDING METHOD AND APPARATUS

In a method of forming a container from a thermoplastic material, a thermoplastic preform may be introduced into a blow cavity at a temperature greater than or equal to a glass transition temperature of a thermoplastic material and less than a melting temperature of the thermoplastic material. A flu...

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1. Verfasser: IYER, Sushil
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:In a method of forming a container from a thermoplastic material, a thermoplastic preform may be introduced into a blow cavity at a temperature greater than or equal to a glass transition temperature of a thermoplastic material and less than a melting temperature of the thermoplastic material. A fluid pressure may be introduced into a preform that may expand the preform radially outwardly to form a semi-finished container. An external surface of the semi-finished container may be engaged with a wall of the blow cavity. The wall of the blow cavity may be rapidly heated. Heat may be transferred to the external surface of the semi-finished container. A surface finish may be imparted from the wall of the blow cavity onto the external surface of the semi-finished container.