Composite polyester films and their use as protective...

Details Composite polyester films and their use as protective... Composite polyester films and their use as protective...

B - Operations, Transporting

32

B

B32B 27/36 (2006.01) G03F 7/09 (2006.01) G03F 7/11 (2006.01)

Patent

CA 2064047

L'invention concerne des films polyester composites biorientés semi-cristallins comportant une couche épaisse chargée ou non chargée et sur au moins une des faces de la couche (A), une couche polyester coextrudée (3) d'épaisseur inférieure à celle de la couche (A) présentant les caractéristiques suivantes: Rt ? 3 µm, Rt/Ra ? 10 et contenant une charge répondant aux caracté- ristiques suivantes: diamètre moyen D 50 de 1,5 à 2,5 µm; monodispersité: I = D 75 - D 25 ? 1,2. Ces films sont utilisables comme feuilles de protection de la couche photopolymérisable d'éléments photopolymérisables.

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