Method of preparing hard coating film

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United States of America Patent

PATENT NO 9701862
SERIAL NO

14404184

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Abstract

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A method of preparing a hard coating film by applying a hard coating composition onto both sides of a supporting substrate, thereby forming a hard coating layer on each side of the supporting substrate, the hard coating composition comprising a binder including a tri- to hexa-functional acrylate-based monomer, inorganic particles and a photoinitiator; and irradiating the applied hard coating layers with ultraviolet to simultaneously photocure the hard coating layers, wherein the hard coating film has a pencil hardness of 7H or more under a load of 1 kg, and properties such that when the hard coating film is exposed to a temperature of 50 to 90° C. and a humidity of 80 to 90% for 70 to 100 hours and then placed on a plane, the maximum distance at which each edge of the hard coating film is spaced apart from the plane is 1.0 mm or less.

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Patent Owner(s)

  • LG CHEM, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Yeong Rae Daejeon, KR 115 478
Her, Eun Kyu Daejeon, KR 22 63
Hong, Sung Don Daejeon, KR 13 76
Jung, Soon Hwa Daejeon, KR 21 115
Kang, Joon Koo Daejeon, KR 31 212

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