Curing catalyst used for curing of polymer, production method for said curing catalyst, mositure-curable composition, and production method for cured product

A method of producing a curing catalyst [B] used for curing a polymer [A] having a reactive hydrolyzable silicon-containing group,

• the method comprising a step of reacting a titanium compound [B1] with an ammonium hydroxide [B2] to obtain the curing catalyst [B] as a reaction product, wherein
• the titanium compound [B1] is represented by Chemical Formula (1),
• the ammonium hydroxide [B2] is represented by Chemical Formula (2),
• (R1—O)nTi-A4-n (1)
• in Chemical Formula (1), R1 is a substituted or unsubstituted hydrocarbon group, n is 1 to 4, A is a β-diketone group, and at least one of R1 represents an alkyl group having 8 or more carbon atoms or an oxyalkylene group represented by Chemical Formula (3);
• in Chemical Formula (2), R2, R3, R4 and R5 represent substituted or unsubstituted hydrocarbon groups having 1 to 8 carbon atoms, which are the same as or different from each other, and X represents a hydroxyl group,
• R6—(O—R7)m— (3)
• in Chemical Formula (3), R6 is a substituted or unsubstituted hydrocarbon group having 1 to 10 carbon atoms, R7 is a substituted or unsubstituted hydrocarbon group having 2 to 10 carbon atoms, and m represents an integer of 1 to 10.