EP 1715989 A1 20061102 - PROCESS AND PLANT FOR DEHUMIDIFICATION, HEATING AND INJECTION MOULDING OF GRANULATED PLASTICS MATERIALS
Title (en)
PROCESS AND PLANT FOR DEHUMIDIFICATION, HEATING AND INJECTION MOULDING OF GRANULATED PLASTICS MATERIALS
Title (de)
VERFAHREN UND ANLAGE ZUM ENTFEUCHTEN, ERWÄRMEN UND SPRITZGIESSEN VON KÖRNIGEN KUNSTSTOFFMATERIALIEN
Title (fr)
PROCEDE ET EQUIPEMENT POUR LA DESHUMIDIFICATION, LE CHAUFFAGE ET LE MOULAGE PAR INJECTION DE MATIERES PLASTIQUES EN GRANULES
Publication
Application
Priority
- EP 2004014583 W 20041222
- IT PD20040037 A 20040216
Abstract (en)
[origin: WO2005077628A1] A process of dehumidification and of injection and moulding for granulated plastics materials comprises a dehumidification step (1a) in which the granules are dehumidified by contact with air at a dehumidification temperature, and a subsequent injection and moulding step (1b) in which the granules coming from the dehumidification step are heated to a moulding temperature higher than the dehumidification temperature and are then injected into a mould. Between the dehumidification step and the injection and moulding step, a heating lo step (20) is provided, in which the granules are heated, in a substantial absence of oxygen, to a supply temperature between the dehumidification temperature and the moulding temperature. A plant (1) operating in accordance with the process is also described.
IPC 8 full level
B29B 13/06 (2006.01); B29B 13/02 (2006.01); B29C 31/02 (2006.01); B29C 45/18 (2006.01); B29C 48/285 (2019.01); B29C 35/02 (2006.01); B29C 48/03 (2019.01); B29C 48/295 (2019.01); B29C 48/80 (2019.01)
CPC (source: EP)
B29B 7/60 (2013.01); B29B 7/826 (2013.01); B29B 9/16 (2013.01); B29B 13/021 (2013.01); B29B 13/065 (2013.01); B29C 31/02 (2013.01); B29C 45/18 (2013.01); B29C 48/285 (2019.01); F26B 3/06 (2013.01); F26B 17/1425 (2013.01); F26B 21/04 (2013.01); F26B 21/083 (2013.01); F26B 23/002 (2013.01); B29C 35/02 (2013.01); B29C 48/022 (2019.01); B29C 48/03 (2019.01); B29C 48/286 (2019.01); B29C 48/295 (2019.01); B29C 48/80 (2019.01); B29C 2045/0096 (2013.01); B29K 2067/00 (2013.01); B29K 2067/006 (2013.01); F26B 2200/08 (2013.01)
Citation (search report)
See references of WO 2005077628A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005077628 A1 20050825; CA 2555611 A1 20050825; EP 1715989 A1 20061102; IT PD20040037 A1 20040516
DOCDB simple family (application)
EP 2004014583 W 20041222; CA 2555611 A 20041222; EP 04804179 A 20041222; IT PD20040037 A 20040216