Polarizing plate including hard coating film
First Claim
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1. A polarizing plate, comprising:
- a polarizer; and
a hard coating film formed on at least one side of the polarizer, the hard coating film comprising a supporting substrate and a hard coating layer formed on at least one side of the supporting substrate, the hard coating layer comprising a photocurable crosslinking copolymer of a tri- to hexa-functional acrylate monomer and a photocurable elastic polymer and inorganic particles dispersed in the photocurable crosslinking copolymer,wherein the photocurable elastic polymer comprises at least one selected from the group consisting of polycaprolactone, a urethane acrylate polymer and polyrotaxane,wherein the polyrotaxane comprises a cyclic moiety (macrocycle) in which lactone compounds with a (meth)acrylate moiety conjugated to the end thereof are bonded each other;
a thread moiety held within the macrocycle; and
stoppers provided at both ends of the thread moiety so as to prevent dissociation of the macrocycle.
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Abstract
The present invention relates to a polarizing plate including a hard coating film, and, more particularly, to a polarizing plate including a hard coating film which exhibits high hardness and superior physical properties. The polarizing plate according to the present invention is high in hardness, scratch resistance, durability, light resistance, and light transmittance and can thus be efficiently utilized in a variety of fields.
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13 Claims
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1. A polarizing plate, comprising:
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a polarizer; and a hard coating film formed on at least one side of the polarizer, the hard coating film comprising a supporting substrate and a hard coating layer formed on at least one side of the supporting substrate, the hard coating layer comprising a photocurable crosslinking copolymer of a tri- to hexa-functional acrylate monomer and a photocurable elastic polymer and inorganic particles dispersed in the photocurable crosslinking copolymer, wherein the photocurable elastic polymer comprises at least one selected from the group consisting of polycaprolactone, a urethane acrylate polymer and polyrotaxane, wherein the polyrotaxane comprises a cyclic moiety (macrocycle) in which lactone compounds with a (meth)acrylate moiety conjugated to the end thereof are bonded each other;
a thread moiety held within the macrocycle; and
stoppers provided at both ends of the thread moiety so as to prevent dissociation of the macrocycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification