CHEMICAL POLYMERIZATION INITIATOR, ADHESIVE COMPOSITION, ADHESIVE COMPOSITION KIT, DENTAL MATERIAL, DENTAL MATERIAL KIT, AND METHOD OF STORING ADHESIVE COMPOSITION
Provided are a chemical polymerization initiator including (a) a thiourea compound, (b) a peroxyester, (c) a divalent copper compound, and (d) an aryl borate compound, an adhesive composition, an adhesive composition kit, a dental material, and a dental material kit each using the chemical polymerization initiator, and a method of storing the adhesive composition.