Photosensitive resin composition

A photosensitive resin composition which comprises

• (1) a particulate copolymer comprising, as the repeating units in the copolymer, 10-99.8% by mole of the unit of (i) an aliphatic conjugated diene monomer, 0.1-30% by mole of the unit of (ii) a monomer having one polymerizable unsaturated group and an amino group, 0.1-20% by mole of the unit of (iii) a monomer having at least two polymerizable unsaturated groups and 0-40% by mole of the unit of (iv) a copolymerizable other monomer having one polymerizable unsaturated group, the total of the units of monomers (i), (ii), (iii) and (iv) being 100% by mole,
• (2) a photopolymerizable unsaturated monomer and
• (3) at least one photopolymerization initiator selected from the group of the compounds represented by the following formulas (I) and (II),
• wherein X and Y are each independently a hydrogen atom, halogen atom, carboxyl group, monovalent hydrocarbon group having 1-20 carbon atoms or alkoxyl group having 1-20 carbon atoms and Z is an oxygen atom or sulfur atom.