| abstract |
PURPOSE:To provide a composition composed of a specific (meth)acrylic acid ester, a monothiol compound, etc., curable by irradiation of ultraviolet ray or electron ray and giving a cured film soluble in an alkaline aqueous solution without causing the peeling of the film. CONSTITUTION:The objective composition is composed of (A) 80-99.9(wt)% (meth)acrylic acid ester having >=1 carboxyl group and one (meth)acryloyl group in one molecule (e.g. acrylic acid ester oligomer having terminal carboxyl group), (B) 0.1-5% monothiol compound (e.g. octyl mercaptan) and (C) 0-20% compound having one polymerizable double bond in one molecule or its (co)polymer (e.g. N-vinylpyrrolidone, polymethyl methacrylate, etc.). USE:Useful for etching resist ink and film-removing type corrosion-resistant paint, etc. |