PROBLEM TO BE SOLVED: To provide a non-solvent system adhesive composition for dentistry which exhibits excellent adhesiveness to any of dental enamel and dentin, and substantially contains neither water nor an organic solvent.SOLUTION: The invention provides a non-solvent system adhesive composition for dentistry containing neither water nor an organic solvent, wherein (A) a polymerizable monomer component,(B) aromatic amine having an electron withdrawing group, and(C) a polymerization initiator are contained and the polymerizable monomer component (A) contains a phosphoric acid monomer (a1) having a phosphate acidic group (>P(=O)OH) and a sulfonic acid monomer (a2) having a sulfonic acid group at the following mass ratio (a1):(a2)=98:2-67:33, and simultaneously contains the sulfonic acid monomer (a2) and the aromatic amine (B) at a ratio so that the molar ratio of an aromatic amino group and a sulfonic acid group (the aromatic amino group/sulfonic acid group) becomes 0.8 or more.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】エナメル質及び象牙質の何れに対しても優れた接着性を示し、且つ水及び有機溶媒を実質上含有していない非溶媒系の歯科用接着性組成物を提供する。【解決手段】水や有機溶媒を含んでいない非溶媒系の歯科用接着性組成物であって、(A)重合性単量体成分、(B)電子求引性基を有する芳香族アミン及び(C)重合開始剤を含み、重合性単量体成分(A)は、リン酸性の酸性基(>P(=O)OH)を有するリン酸系モノマー(a1)と、スルホン酸基を有するスルホン酸系モノマー(a2)とを、下記質量比; (a1):(a2)=98:2~67:33で含んでいると共に、スルホン酸系モノマー(a2)と芳香族アミン(B)とを、芳香族アミノ基とスルホン酸基とのモル比(芳香族アミノ基/スルホン酸基)が0.8以上となる割合で含有していることを特徴とする。【選択図】なし
