A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR MANUFACTURING FOAMED PROFILES AND FOAMED PROFILES OBTAINABLE BY THE METHOD
The present invention provides a method for manufacturing foamed profiles using an extruder (1) and a calibration (3), wherein the extruder (1) has a melting part (1a), a pressure reducing part (1b) and an extrusion die (2) having a melt channel (4), wherein the method comprises the steps of melting a mixture comprising a thermoplastic polymer and a chemical foaming agent in the melting part (1a) of the extruder (1), wherein the mixture has a water content of 0.5 wt.-% or less, introducing an inert gas into the molten mixture to obtain a molten mass containing the introduced inert gas, reducing the pressure of the molten mass containing the introduced inert gas in the pressure reducing part (1b), expanding the molten mass having the reduced pressure in the melt channel (4) of the extrusion die (2) and extruding the same, transferring the extruded molten mass into the calibration (3), whereby the extruded molten mass is cooled, and drawing the cooled extruded mass out of the calibration (3). Furthermore, the present invention provides foamed profiles obtainable by said method.
METHOD FOR MANUFACTURING FOAMED PROFILES AND FOAMED PROFILES OBTAINABLE BY THE METHOD
The present invention provides a method for manufacturing foamed profiles using an extruder (1) and a calibration (3), wherein the extruder (1) has a melting part (1a), a pressure reducing part (1b) and an extrusion die (2) having a melt channel (4), wherein the method comprises the steps of melting a mixture comprising a thermoplastic polymer and a chemical foaming agent in the melting part (1a) of the extruder (1), wherein the mixture has a water content of 0.5 wt.-% or less, introducing an inert gas into the molten mixture to obtain a molten mass containing the introduced inert gas, reducing the pressure of the molten mass containing the introduced inert gas in the pressure reducing part (1b), expanding the molten mass having the reduced pressure in the melt channel (4) of the extrusion die (2) and extruding the same, transferring the extruded molten mass into the calibration (3), whereby the extruded molten mass is cooled, and drawing the cooled extruded mass out of the calibration (3). Furthermore, the present invention provides foamed profiles obtainable by said method.
METHOD FOR MANUFACTURING FOAMED PROFILES AND FOAMED PROFILES OBTAINABLE BY THE METHOD
VERFAHREN ZUR HERSTELLUNG GESCHÄUMTER PROFILE UND DURCH DAS VERFAHREN ERHALTENE GESCHÄUMTE PROFILE
PROCÉDÉ DE FABRICATION DE PROFILÉS EN MOUSSE ET PROFILS DE MOUSSE POUVANT ÊTRE OBTENUS PAR LE PROCÉDÉ
SIODLA THORSTEN (author)
2017-05-03
Patent
Electronic Resource
English
IPC:
B29C
Formen oder Verbinden von Kunststoffen
,
SHAPING OR JOINING OF PLASTICS
/
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
FOAMED WALLPAPER AND METHOD FOR MANUFACTURING FOAMED WALLPAPER
| European Patent Office | 2017
FOAMED WALLPAPER AND MANUFACTURING METHOD OF FOAMED WALLPAPER
| European Patent Office | 2017
Reinstatement: Highways profiles a new foamed bitumen product
| British Library Online Contents | 1999
Formwork foamed plate manufacturing method and formwork foamed plate
| European Patent Office | 2021