EP 1021288 A2 20000726 - APPARATUS AND METHOD FOR COEXTRUDING MATERIALS AT DIFFERENT TEMPERATURES
Title (en)
APPARATUS AND METHOD FOR COEXTRUDING MATERIALS AT DIFFERENT TEMPERATURES
Title (de)
VORRICHTUNG UND VERFAHREN ZUM KOEXTRUDIEREN VON MATERIALIEN MIT UNTERSCHIEDLICHER TEMPERATUR
Title (fr)
APPAREIL ET PROCEDE DE COEXTRUSION DE MATIERES A DES TEMPERATURES DIFFERENTES
Publication
Application
Priority
- DE 19744515 A 19971009
- NL 9800580 W 19981009
- NL 1009521 A 19980630
Abstract (en)
[origin: WO9858528A2] The invention relates to an apparatus for coextruding polymers at different temperatures comprising at least two extruders, wherein the extruders are connected to a coextrusion head which comprises an insulation zone, and at least one of a cooling zone and a heating zone and wherein a removable die/dieholder-combination is mounted to the coextrusion head. The invention also relates to a method for coextruding two or more polymers at different temperatures by shaping the polymers independently of one another, until the moment they meet at the vicinity of the die-frontplate, where the polymers are brought together and a coextrudate is formed.
IPC 1-7
IPC 8 full level
C08J 9/04 (2006.01); B29C 48/21 (2019.01); B29C 48/495 (2019.01); B29K 7/00 (2006.01); B29K 9/00 (2006.01); B29K 9/06 (2006.01); B29K 19/00 (2006.01); B29K 23/00 (2006.01); B29K 105/04 (2006.01); B29K 105/24 (2006.01); B29L 9/00 (2006.01)
CPC (source: EP US)
B29C 48/023 (2019.01 - EP US); B29C 48/18 (2019.01 - EP US); B29C 48/21 (2019.01 - EP US); B29C 48/495 (2019.01 - EP US); B29C 48/86 (2019.01 - EP US); B29C 48/865 (2019.01 - EP US); B29C 48/87 (2019.01 - EP US); B29C 48/07 (2019.01 - EP US); B29C 48/09 (2019.01 - EP US); B29C 48/12 (2019.01 - EP US)
Citation (search report)
See references of WO 9858528A2
Designated contracting state (EPC)
DE ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9858528 A2 19981230; WO 9858528 A3 19990401; AU 9652398 A 19990104; EP 1021288 A2 20000726; JP 2002530232 A 20020917
DOCDB simple family (application)
NL 9800580 W 19981009; AU 9652398 A 19981009; EP 98950505 A 19981009; JP 2000584724 A 19981009