Formable hard coated PC/PMMA coextruded films
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United States of America Patent
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Jun 12, 2018
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app pub date -
Sep 23, 2014
filing date -
Sep 27, 2013
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Abstract
The present invention provides a formable hard coating composition, comprising a binder, comprising at least one acrylate oligomer and at least one monofunctional acrylate monomer and a crosslinking agent, comprising at least one multifunctional acrylate or methacrylate monomer. Furthermore, the present invention provides a coated film comprising a coextruded PC/PMMA film and a coating obtained by coating with the hard coating composition, wherein the coating has a dry film thickness according to ASTM B499 in the range of from ≥1 to ≤6 μm and preferably a crosslink density in the range of from ≥2·10−3 to ≤13·10−3. The coated films exhibit a combination of good formability and pencil hardness, solvent and chemical resistance which makes it particular useful for applications such as in-mold decoration processes.
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