Sealable discharge die for thermoplastic

US4479768A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolfgang Kube
• Robert Kegel · Bischofswerda, DE
• Guenter Valentin · Ludwigshafen, DE
• Dieter Staufer · Ludwigshafen, DE

Key dates

• Filing date: Apr 28, 1983
• Grant date: Oct 30, 1984
• Expiry date: Apr 28, 2003

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C48/05
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A sealable discharge die for thermoplastics, comprising a housing, a dieplate which closes the latter except for perforations for discharge of the plastic melt in strands or filaments, and a perforated plate located immediately below or above this dieplate, one of the plates being slidable or rotatable and the perforated plate having orifices which can be brought into alignment with the perforations of the dieplate.