Global Patent Index - EP 3642270 A1

EP 3642270 A1 20200429 - METHOD FOR PRODUCING A MULTILAYER FILM USING CORE-SHELL POLYMERIC PARTICLES

Title (en)

METHOD FOR PRODUCING A MULTILAYER FILM USING CORE-SHELL POLYMERIC PARTICLES

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES MEHRSCHICHTIGEN FILMS UNTER VERWENDUNG VON KERN-HÜLLE-POLYMERTEILCHEN

Title (fr)

PROCÉDÉ DE PRODUCTION D'UN FILM MULTICOUCHE À L'AIDE DE PARTICULES POLYMÈRES COEUR-ÉCORCE

Publication

EP 3642270 A1 20200429 (EN)

Application

EP 17761314 A 20170623

Priority

IB 2017001004 W 20170623

Abstract (en)

[origin: WO2018234842A1] The invention relates to a method for producing a multilayer film. In particular, the invention relates to a method for producing a multilayer film comprising at least one polymer support, at least one bonding primer layer and at least one coating, said method comprising the following steps: a) implementing a polymer support; b) optionally, performing a surface pretreatment on at least one face of said support; c) coating at least one face of said support with a primer dispersion comprising core-shell polymeric particles; d) drying the dispersion in order to produce a bonding primer layer; e) coating the bonding primer layer with at least one coating of at least one metal and/or at least one metal oxide and/or silicon oxide, or at least one layer of ink, or at least one layer of adhesive. The invention also relates to the use of a primer dispersion comprising core-shell polymeric particles to obtain a bonding primer layer that makes it possible to control the barrier properties and/or the adhesion properties of a multilayer film comprising a polymer support, a bonding primer layer and a coating.

IPC 8 full level

C08J 7/043 (2020.01); C08J 7/048 (2020.01); C08J 7/056 (2020.01); C09D 5/00 (2006.01); C09D 133/06 (2006.01); C23C 18/18 (2006.01); C23C 18/20 (2006.01); C25D 5/56 (2006.01)

CPC (source: EP US)

C08J 7/0423 (2020.01 - EP); C08J 7/043 (2020.01 - EP US); C08J 7/048 (2020.01 - EP US); C08J 7/056 (2020.01 - EP US); C09D 5/002 (2013.01 - EP US); C09D 133/06 (2013.01 - EP); C23C 14/024 (2013.01 - EP); C23C 14/081 (2013.01 - EP); C23C 14/20 (2013.01 - EP); C23C 14/24 (2013.01 - EP); C23C 14/547 (2013.01 - EP); C08J 2323/00 (2013.01 - EP); C08J 2367/00 (2013.01 - EP); C08J 2433/06 (2013.01 - EP)

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 2018234842 A1 20181227; EP 3642270 A1 20200429

DOCDB simple family (application)

IB 2017001004 W 20170623; EP 17761314 A 20170623