HARD-COATING COMPOSITION, SURFACE-PROTECTIVE FILM, AND OPTICAL DISK

摘要

PROBLEM TO BE SOLVED: To obtain a hard-coating composition which forms a hard coat improved in levelling properties without detriment to coating film properties.

SOLUTION: An information signal part 2 is formed on a substrate 2. A light-transmitting layer 4 is formed by sticking a light-transmitting sheet 12 to the substrate 2 through an adhesive layer 11. The hard-coating composition is obtained by adding a low-molecular-weight reactive diluent to a solvent-based hard-coating agent. The hard-coating composition is uniformly applied to the light-transmitting layer 4 by spin coating. The applied hard-coating composition is cured to form a hard coat 21.

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