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

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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Hauptverfasser: Grossiord, Nadia, Lee, Jong Woo, Günbas, Duygu Deniz, Janssen, Pieter Jan Antoon
Format: Patent
Sprache:eng ; fre ; ger
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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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creator Grossiord, Nadia
Lee, Jong Woo
Günbas, Duygu Deniz
Janssen, Pieter Jan Antoon
description 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%.
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subjects LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
title TRANSPARENT, FLEXIBLE, IMPACT RESISTANT, MULTILAYER FILM COMPRISING POLYCARBONATE COPOLYMERS
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