Process for producing polyester composition

The present invention relates to a process for producing a polyester sheet comprising using a vent-type twin-screw extruder, using a polyester resin having not lower than 1 X 10 OMEGA cm of a specific resistance when melted as starting material, supplying said polyester and a metal salt of an alipha...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	MIKI, TAKATOSHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention relates to a process for producing a polyester sheet comprising using a vent-type twin-screw extruder, using a polyester resin having not lower than 1 X 10 OMEGA cm of a specific resistance when melted as starting material, supplying said polyester and a metal salt of an aliphatic monocarboxylic acid or dicarboxylic acid in amount of 0.5 to 1,000 ppm, calculated as metallic atom, based on the polyester resin, and closely adhering the molten polyester sheet extruded onto a rotating chilling drum from the extruder to the surface of said chilling drum by use of an electrostatic pinning technique.