COATING COMPOSITION AND OPTICAL RECORDING MEDIA

摘要

A coating composition capable of forming an ink receiving layer excellent in tight adhesion to hydrophobic substrates, water resistance and setting stability; and optical recording media having ink receiving layers made from the composition. The composition comprises a radiation-curable compound (A) comprising 50 to 90 wt. % of a monofunctional (meth)acrylic monomer and 10 to 50 wt. % of an oligomer of a polyfunctional (meth)acrylic monomer, 10 to 60 wt. % (based on the compound (A)) of a water-absorbing organic filler (C) and 1 to 20 wt. % (based on the compound (A)) of a water-absorbing inorganic filler (D). An optical disk (1) is produced by applying the composition on a protective film (6) and curing it to form an ink-receiving layer (7).