Abstract: The present invention provides a semicarbazide composition containing a semicarbazide compound (S) derived from an isocyanate compound (N) and a hydrazine, wherein the semicarbazide compound (S) has a hydrophilic functional group (a) and a structure (b) represented by the following formula (I), and a molar ratio (b)/(a) of the structure (b) to the hydrophilic functional group (a) is 0.1 or more and 10.0 or less, and the like.

Abstract: A semicarbazide composition contains a semicarbazide compound (A1) derived from a hydrazine and an isocyanate compound (a1) having an isocyanate group, and a semicarbazide compound (B1) derived from a hydrazine and an isocyanate compound (b1) having an isocyanate group and having a different structure from the isocyanate compound (a1), wherein the absolute value of the difference in the solubility parameters of the isocyanate compound (a1) and the isocyanate compound (b1) is at least 0.15 but not more than 2.10. A method for producing a semicarbazide composition includes, in sequence, a step 2-1 of reacting a hydrazine and an isocyanate compound (a2) having at least one cyclic structure within the molecule to obtain a semicarbazide compound (A2), and a step 2-2 of reacting a hydrazine and an isocyanate compound (b2) not having a cyclic structure within the molecule to obtain a semicarbazide compound (B2).

Abstract: The present invention provides a coating film including a structure represented by formula (I)-1, a multilayer coating film including said coating film and a method for producing the same.