EP 4294617 A1 20231227 - IMPREGNATION DEVICE TO PRODUCE CONTINUOUS FIBRE REINFORCED THERMOPLASTIC FILAMENTS FOR 3D PRINTING, AND IMPREGNATION METHOD THEREOF
Title (en)
IMPREGNATION DEVICE TO PRODUCE CONTINUOUS FIBRE REINFORCED THERMOPLASTIC FILAMENTS FOR 3D PRINTING, AND IMPREGNATION METHOD THEREOF
Title (de)
IMPRÄGNIERVORRICHTUNG ZUR HERSTELLUNG VON ENDLOSFASERVERSTÄRKTEN THERMOPLASTISCHEN FILAMENTEN FÜR 3D-DRUCK UND IMPRÄGNIERVERFAHREN DAFÜR
Title (fr)
DISPOSITIF D'IMPRÉGNATION POUR PRODUIRE DES FILAMENTS THERMOPLASTIQUES RENFORCÉS PAR DES FIBRES CONTINUES POUR IMPRESSION 3D, ET MÉTHODE D'IMPRÉGNATION ASSOCIÉE
Publication
Application
Priority
- PT 11707221 A 20210217
- IB 2021051520 W 20210223
Abstract (en)
[origin: WO2022175723A1] The present disclosure relates to an impregnation device (1) and method for continuously obtaining a fibre-reinforced thermoplastic filament (42) from continuous fibre strands or yarns (11) to be impregnated with a thermoplastic resin, fed through an inlet (9), said impregnation device comprising: an impregnation cavity having a rectangular cross-section and being tapered towards a circular cross- section outlet (14) of the impregnated yarn; wherein the impregnation cavity is shaped to undulate sinusoidally in a downstream direction.
IPC 8 full level
B29B 15/12 (2006.01)
CPC (source: EP)
B29B 15/122 (2013.01)
Citation (search report)
See references of WO 2022175723A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
IB 2021051520 W 20210223; EP 21714379 A 20210223