Optical layered body, polarizer and image display device
AssigneeDai Nippon Printing Co., Ltd.
InventorsToshio Yoshihara, Tomoyuki Horio, Mayu Youki
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Abstract
The present invention provides an optical layered body having excellent antistatic properties, optical characteristics, hardness, adhesion, and interference fringe prevention performance, which can be produced at a low cost. An optical layered body having a hard coat layer provided on a triacetylcellulose substrate, wherein a resin composition used for forming the hard coat layer contains a quaternary ammonium salt-containing polymer, a binder resin, and a solvent; the quaternary ammonium salt-containing polymer has a higher hydrophilicity than the binder resin; and the binder resin contains two or more resin components having different hydrophilicities.
Claims9
1-10. (canceled)
A method for localizing a quaternary ammonium salt-containing polymer in a hard coat layer provided on a triacetylcellulose substrate of an optical layered body, which method comprises:
- using a resin composition for forming the hard coat layer containing a quaternary ammonium salt-containing polymer, a binder resin, and a solvent,
- selecting the quaternary ammonium salt-containing polymer having a higher hydrophilicity than the binder resin, and
- selecting the binder resin containing two or more resin components having different hydrophilicities.
Dependencies are inferred from the claim text.