| 摘要 |
<p>A thermosetting composition for protective films which can form a dry coating film (protective film) reduced in tackiness, does not color in hard baking, and has satisfactory light transmittance in the visible light region. The composition comprises an alkali-soluble resin (A), a compound having an ethylenically unsaturated group (B), and a photopolymerization initiator (C). The ingredient (A) has an acid value of 80 mg-KOH/g or higher. A resinous film formed from the ingredient (A) in a film thickness of 1 µm has a breaking point as measured in 0.4 wt.% aqueous tetramethylammonium hydroxide solution (25°C) of 10 seconds or longer.</p> |
