TRANSPARENT, FLEXIBLE, IMPACT RESISTANT, MULTILAYER FILM COMPRISING POLYCARBONATE COPOLYMERS

A multilayer film can comprise: a plurality of layers, preferably 4 layers to 128 layers, comprising: a polymer A layer comprising a polycarbonate copolymer and a polymer B layer comprising a semi-crystalline polyester; wherein a differential solubility parameter (ΔδAB) of polymer A towards polymer...

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Bibliographische Detailangaben
Hauptverfasser:	JANSSEN, Pieter Jan Antoon, LEE, Jong Woo, GÜNBAS, Duygu Deniz, GROSSIORD, Nadia
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	A multilayer film can comprise: a plurality of layers, preferably 4 layers to 128 layers, comprising: a polymer A layer comprising a polycarbonate copolymer and a polymer B layer comprising a semi-crystalline polyester; wherein a differential solubility parameter (ΔδAB) of polymer A towards polymer B (ΔδAB) is greater than or equal to 2.6 MPa1/2; and an interdiffusion region between each polymer A and polymer B. The multilayer film has a dynamic flexure of greater than or equal to 200,000 cycles, as determine by bending 180° on a 10 mm radius cylinder at a rate of 1 hertz. The multilayer film has a total thickness of 40 µm to 70 µm, a transmission at 360 nm to 750 nm of greater than or equal to 89% and a haze of less than or equal to 1%.