EP 3493968 A1 20190612 - MULTI-LAYER BLOWING HEAD FOR A BLOWN FILM INSTALLATION, BLOWN FILM INSTALLATION, AND METHOD FOR OPERATING A BLOWN FILM INSTALLATION
Title (en)
MULTI-LAYER BLOWING HEAD FOR A BLOWN FILM INSTALLATION, BLOWN FILM INSTALLATION, AND METHOD FOR OPERATING A BLOWN FILM INSTALLATION
Title (de)
MEHRSCHICHTBLASKOPF FÜR EINE BLASFOLIENANLAGE, BLASFOLIENANLAGE SOWIE VERFAHREN ZUM BETREIBEN EINER BLASFOLIENANLAGE
Title (fr)
TÊTE DE SOUFFLAGE MULTICOUCHE POUR SYSTÈME DE SOUFFLAGE DE FILM, SYSTÈME DE SOUFFLAGE DE FILM, AINSI QUE PROCÉDÉ PERMETTANT DE FAIRE FONCTIONNER UN SYSTÈME DE SOUFFLAGE DE FILM
Publication
Application
Priority
- DE 102016009407 A 20160804
- DE 102017002274 A 20170310
- DE 2017000124 W 20170510
Abstract (en)
[origin: WO2018024267A1] The invention relates to a multi-layer blowing head for a blown film installation, to a blown film installation, and to a method for operating a blown film installation. Specifically, according to the invention, a component is included on the opposite side of a distributor plate of a distributor plate set for a spiral distributor, wherein part of the spiral distributor is formed out of the opposite side of a distributor plate. The blowing head according to the invention for forming a multi-layer melt flow makes it possible, in the case of suitable operating parameters, to prevent the occurrence of spiral strips or at least to make said spiral strips less pronounced.
IPC 8 full level
B29C 48/10 (2019.01); B29C 48/32 (2019.01); B29C 48/335 (2019.01)
CPC (source: EP US)
B29C 48/0018 (2019.01 - EP US); B29C 48/10 (2019.01 - EP US); B29C 48/21 (2019.01 - EP US); B29C 48/2566 (2019.01 - EP US); B29C 48/3363 (2019.01 - EP US); B29C 48/3366 (2019.01 - EP US)
Citation (search report)
See references of WO 2018024267A1
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
DOCDB simple family (publication)
WO 2018024267 A1 20180208; BR 112019001851 A2 20190507; CA 3031850 A1 20180208; CN 109562552 A 20190402; DE 102017002274 A1 20180208; DE 112017003881 A5 20190418; EP 3493968 A1 20190612; US 2019263041 A1 20190829
DOCDB simple family (application)
DE 2017000124 W 20170510; BR 112019001851 A 20170510; CA 3031850 A 20170510; CN 201780048312 A 20170510; DE 102017002274 A 20170310; DE 112017003881 T 20170510; EP 17732286 A 20170510; US 201716319954 A 20170510