Curable composition for optical imprinting and pattern forming method

A curable composition for optical imprinting, comprising:

• a polymerizable compound (A);
• a photopolymerization initiator (B);
• and
• a compound (C) expressed by General Formula (I),
• wherein, in General Formula (I), A represents a trihydric to hexahydric polyhydric alcohol residue, p represents 0 to 2, q represents 1 to 6, p+q represents an integer of 2 to 6, m represents an average number of addition of ethyleneoxide, n represents an average number of addition of propyleneoxide, each of m and n independently represents 0 to 20, r expressed by Formula (1) is 6 to 20;
• r=(sum of m)+(sum of n) (1)
• and each R independently represents an alkyl group having 1 to 10 carbon atoms, an aryl group, an acetyl group, a propionyl group or a benzoyl group,
• wherein, when each of m and n are 2 or greater, the distribution thereof is random or blocked.