PROBLEM TO BE SOLVED: To develop a chemical polymerization catalyst that maintains high activity even used in an environment having a high water content, in a chemical polymerization catalyst which is easily handled and has a cured product free from discoloration and change of color and is obtained by combining an aryl borate compound with an acidic compound, a peroxide and a transition metal compound.SOLUTION: The chemical polymerization catalyst for dentistry includes an aryl borate compound such as tetraphenylboron triethanolamine salt etc., an acidic compound such as an acid group-containing polymerizable monomer etc., an inorganic peroxide such as peroxodisulfuric acid compound and a divalent copper compound such as cupric acetylacetonate. The curable composition for dentistry includes the chemical polymerization catalyst for dentistry and water. Concretely, addition of water makes the chemical polymerization catalyst for dentistry preferably mixable with an adhesive for dental direct restoration having improved permeability to dentin.COPYRIGHT: (C)2011,JPO&INPIT【課題】取り扱いが容易で、硬化体の着色や変色がない、アリールボレート化合物、酸性化合物、過酸化物、及び遷移金属化合物を組み合せた化学重合触媒において、水分を多く含む環境下で使用されても、その高い活性が維持されるものを開発すること。【解決手段】テトラフェニルホウ素トリエタノールアミン塩等のアリールボレート化合物、酸性基含有重合性単量体等の酸性化合物、ペルオキソ二硫酸化合物等の無機過酸化物、及びアセチルアセトナート銅等の2価の銅化合物を含む歯科用化学重合触媒。水を含む歯科用硬化性組成物、具体的には水を含有することにより、歯質への浸透性を高めた歯科用直接修復用接着材に特に好適に配合される。【選択図】 なし
