EP 2925521 A1 20151007 - NON-IRIDESCENT FILM WITH POLYMERIC PARTICLES IN PRIMER LAYER
Title (en)
NON-IRIDESCENT FILM WITH POLYMERIC PARTICLES IN PRIMER LAYER
Title (de)
NICHTIRISIERENDER FILM MIT POLYMERTEILCHEN IN GRUNDIERUNGSSCHICHT
Title (fr)
FILM NON IRISÉ AYANT DES PARTICULES POLYMÈRES DANS LA COUCHE DE PRIMAIRE
Publication
Application
Priority
- US 201213688181 A 20121128
- US 2013070769 W 20131119
Abstract (en)
[origin: WO2014085139A1] This invention relates to an optically clear film of predominantly thermoplastic polyester base layer and a carbodiimide-crosslinked, polyester and polymethylmethacrylate blend primer layer. The base layer preferably has a particle-free core layer and outer layers containing nonpolyester, organic and/or inorganic particles. The primer layer is preferably applied to the base layer from solution that is organic solvent-free. The primer layer and base layer composite can be laminated with a protective layer of primarily acrylic polymer to form a solar control film. Functional additives, such as UV light blockers, can be present in various layers of the solar control film. Polymethylmethacrylate in the primer, especially in combination with crosslinking by the carbodiimide, provides the acrylic coated polyester base solar control film with notably reduced iridescence. Adhesion between the acrylic layer applied from organic solvent solutions and the polyester layers is durable in moist and warm service conditions.
IPC 8 full level
B32B 7/02 (2006.01); B29C 41/00 (2006.01); B29D 7/01 (2006.01)
CPC (source: EP US)
B29C 48/022 (2019.01 - EP); B29C 48/08 (2019.01 - EP); B29C 48/16 (2019.01 - EP); B29C 48/21 (2019.01 - EP); B29D 7/01 (2013.01 - EP); B32B 27/08 (2013.01 - EP); B32B 27/20 (2013.01 - EP US); B32B 27/308 (2013.01 - EP); B32B 27/36 (2013.01 - EP); C09D 5/002 (2013.01 - EP); B29K 2033/12 (2013.01 - EP); B29K 2075/00 (2013.01 - EP); B29K 2105/24 (2013.01 - EP); B29K 2995/0018 (2013.01 - EP); B32B 2250/24 (2013.01 - EP); B32B 2255/10 (2013.01 - EP); B32B 2255/26 (2013.01 - EP); B32B 2307/518 (2013.01 - EP); B32B 2307/558 (2013.01 - EP); B32B 2307/71 (2013.01 - EP)
Citation (search report)
See references of WO 2014085139A1
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 2014085139 A1 20140605; WO 2014085139 A4 20140724; EP 2925521 A1 20151007; JP 2016505411 A 20160225
DOCDB simple family (application)
US 2013070769 W 20131119; EP 13858125 A 20131119; JP 2015544100 A 20131119