Radiation-setting composition containing (meth)acrylic copolymers containing acid groups

A radiation-setting composition for LCD protective layers which comprises:

• (A) a (meth)acrylic copolymer comprising (meth)acrylic acid, said (meth)acrylic copolymer being represented by the following formula (2-1), (2-2) or (2-3), having a weight-average molecular weight (Mw) of 3,000 to 300,000 and having an acid value of 30 to 200 and a glass transition temperature of −30 to 180° C.;
• (B) a (meth)acrylic copolymer obtained by copolymerizing a monomer represented by the following formula (I) with a vinyl monomer at least having an acidic group;
• (C) a radiation-sensitive compound;
• and
• (D) a solvent:
• wherein R7 represents an alkyl group having 1 to 18 carbon atoms, a phenyl group having an alkyl group with 1 to 4 carbon atoms, a phenyl group having an alkoxy group with 1 to 4 carbon atoms, an aryl group with 6 to 12 carbon atoms or an aralkyl group with 7 to 12 carbon atoms;
• R8 to R10 each represents a hydrogen atom or a methyl group;
• n is 2 or 3;
• a, b:
• a/b=5/5 to 9/1;
• c, d, e:
• c/(d+e)=5/5 to 9/1, d/e=9/1 to 2/8;
• and
• f, g, h, k:
• (f+k)/(g+h)=5/5 to 9/1, g/h=9/1 to 2/8, f/k=9/1 to 1/9
• wherein R represents a hydrogen atom or a methyl group;
• and R1 to R5 each represents a hydrogen atom, a halogen atom, a cyano group, an alkyl group having 1 to 7 carbon atoms or an aryl group having 6 to 12 carbon atoms.