Laminated film
AssigneeJnc Corporation
InventorsKenya Ito, Hiroyuki Iizuka, Shino Sato, Yasuhiro Shiraishi
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Abstract
A laminated film appropriate as a PPF material which has a three-layer structure in which a top coating layer including a urethane acrylate cured product, a substrate layer including polycarbonate thermoplastic polyurethane, and an adhesive layer including a pressure sensitive adhesive are in contact in that order. Preferably, the top coating layer includes a unit derived from γ-methacryloxypropylhepta(trifluoropropyl)-T8-silsesquioxane.
Claims5
A laminated film having a three-layer structure in which a top coating layer comprising an urethane acrylate and a fluorine-containing compound, a substrate layer consisting of polycarbonate thermoplastic polyurethane, and an adhesive layer made of a pressure sensitive adhesive are in contact in that order, wherein an amount of the fluorine-containing compound is 0.1 parts by weight to 10 parts by weight with respect to 100 parts by weight of the urethane acrylate, and the polycarbonate thermoplastic polyurethane has a soft segment block and a hard segment block, the soft segment block has a polycarbonate diol unit having a number average molecular weight of 500 to 10,000 and an organic diisocyanate unit, and the hard segment block has a chain extender selected from organic diols having a number average molecular weight of 60 to 400 and an organic diisocyanate unit.
Dependencies are inferred from the claim text.