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US 2021/0060908 A1Published application
Hard coating film having multilayer-structure, and polyimide film comprising same
AssigneeKolon Industries, Inc.
InventorsPil Rye YANG, Dong Hee LEE, Sang Hyun AHN, Hang Geun KIM, Seong Hoon BAEK, Byung Joon AN
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Abstract
The present invention relates to a hard coating film having a multilayer-structure and, specifically, to a hard coating film having a multilayer-structure, which has a low Vickers hardness (Hv) value while having an excellent scratch resistance together with flexibility.
Claims10
A hard coating film having a structure in which a highly bendable layer and a high-hardness layer are stacked on a substrate in that order,
- wherein the highly bendable layer has a Vickers hardness (Hv) of 40 or less,
- the high-hardness layer has a Vickers hardness (Hv) of 55 or more, and
- the hard coating film including the highly bendable layer and the high-hardness layer stacked on the substrate in that order has a Vickers hardness (Hv) of 20 to 65.
Dependencies are inferred from the claim text.