EP 3962740 A1 20220309 - METHOD FOR PRODUCING A MULTI-LAYER COMPOSITE FILM, MULTI-LAYER COMPOSITE FILM AND USE THEREOF
Title (en)
METHOD FOR PRODUCING A MULTI-LAYER COMPOSITE FILM, MULTI-LAYER COMPOSITE FILM AND USE THEREOF
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER MEHRSCHICHTIGEN VERBUNDFOLIE, MEHRSCHICHTIGE VERBUNDFOLIE UND DEREN VERWENDUNG
Title (fr)
PROCÉDÉ POUR FABRIQUER UN FILM COMPOSITE MULTICOUCHE, FILM COMPOSITE MULTICOUCHE ET SON UTILISATION
Publication
Application
Priority
- DE 102019111460 A 20190503
- EP 2020062166 W 20200430
Abstract (en)
[origin: WO2020225140A1] The present claim relates to a method for producing a multi-layer composite film comprising the step of co-extruding at least three layers (a), (b) and (c), from which the layer (a) forms an outer surface of the composite film; the layer (c) forms a surface of the composite film that comes into contact therewith or faces the product to be packaged; and the layer (b) is arranged between the layer (a) and the layer (c). The method also comprises the step of bi-axially drawing the co-extruded composite film. Layer (a) contains a thermoplastic resin or is made thereof. Layer (b) contains a polyvinyl chloride (PVdC)- resin or is made thererof. Layer (c) contains a resin, preferably sealable, in particular a heat-sealable resin or is made therefrom. As a result, there is no cross-linking of the composite film by means of radio-active radiation, in particular by means of beta, gamma, x-ray and/or electron radiation, during the production of the composite film and after.
IPC 8 full level
B32B 27/08 (2006.01); B29C 48/00 (2019.01); B29C 48/21 (2019.01); B29C 55/12 (2006.01); B32B 1/08 (2006.01); B32B 7/027 (2019.01); B32B 7/12 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B65D 37/00 (2006.01); B65D 65/40 (2006.01); C08L 27/08 (2006.01)
CPC (source: EP US)
B29C 48/0018 (2019.02 - EP US); B29C 48/08 (2019.02 - US); B29C 48/21 (2019.02 - EP US); B29C 55/12 (2013.01 - EP US); B32B 1/08 (2013.01 - EP US); B32B 7/027 (2019.01 - EP US); B32B 7/12 (2013.01 - EP US); B32B 27/08 (2013.01 - EP US); B32B 27/304 (2013.01 - EP US); B32B 27/306 (2013.01 - EP); B32B 27/308 (2013.01 - EP); B32B 27/32 (2013.01 - EP US); B32B 27/327 (2013.01 - EP); B32B 27/34 (2013.01 - EP US); B32B 27/36 (2013.01 - EP US); B29K 2023/00 (2013.01 - US); B29K 2027/08 (2013.01 - US); B29K 2067/003 (2013.01 - US); B29K 2995/0082 (2013.01 - US); B29K 2995/0097 (2013.01 - US); B29L 2007/008 (2013.01 - US); B32B 2250/03 (2013.01 - EP US); B32B 2250/05 (2013.01 - EP US); B32B 2250/24 (2013.01 - EP US); B32B 2270/00 (2013.01 - EP); B32B 2307/31 (2013.01 - EP US); B32B 2307/412 (2013.01 - EP US); B32B 2307/414 (2013.01 - EP); B32B 2307/518 (2013.01 - EP US); B32B 2307/54 (2013.01 - EP); B32B 2307/546 (2013.01 - US); B32B 2307/72 (2013.01 - EP); B32B 2307/7244 (2013.01 - EP); B32B 2307/7246 (2013.01 - EP); B32B 2307/7248 (2013.01 - EP); B32B 2307/732 (2013.01 - US); B32B 2307/736 (2013.01 - EP US); B32B 2307/75 (2013.01 - EP); B32B 2439/70 (2013.01 - EP US)
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)
DE 102019111460 A1 20201105; BR 112021021757 A2 20211228; EP 3962740 A1 20220309; US 2022203658 A1 20220630; WO 2020225140 A1 20201112
DOCDB simple family (application)
DE 102019111460 A 20190503; BR 112021021757 A 20200430; EP 2020062166 W 20200430; EP 20723394 A 20200430; US 202017601906 A 20200430