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US 9,926,461 B2Granted
Hard coating film
AssigneeLG Chem, Ltd.
InventorsJoon Koo Kang, Yeong Rae Chang, Jae Hoon Shim, Sung Don Hong, Seung Jung Lee
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Abstract
The present invention provides a hard coating film having high hardness and excellent properties. The hard coating film has high hardness and is not easily curled.
Claims21
A hard coating film, comprising:
- a supporting substrate;
- a first hard coating layer which is formed on one side of the supporting substrate and which includes 40 to 60 parts by weight of a first photocurable crosslinked copolymer and 40 to 60 parts by weight of first inorganic particles dispersed in the first photocurable crosslinked copolymer based on 100 parts by weight of the first hard coating layer;
- and
- a second hard coating layer which is formed on the other side of the supporting substrate and which includes more than 60 to less than 100 parts by weight of a second photocurable crosslinked copolymer and more than 0 to less than 40 parts by weight of second inorganic particles dispersed in the second photocurable crosslinked copolymer based on 100 parts by weight of the second hard coating layer,
- wherein the hard coating film has a hardness property of a pencil hardness of 7H or more when evaluated under a load of 1 kg according to the Japanese Standard JIS K5400.
2 more elements
Dependencies are inferred from the claim text.