申请人:MITSUI CHEMICALS, INC.
公开号:US20170181932A1
公开(公告)日:2017-06-29
Provided are dental polymerizable monomer compositions that can give cured products having high toughness and high rigidity, and dental compositions containing such dental polymerizable monomer compositions and cured products thereof having high mechanical properties. The dental polymerizable monomer composition includes a urethane acrylate compound (A) and a polymerizable compound (B) having at least one polymerizable group selected from methacryloyl groups and acryloyl groups, the urethane acrylate compound (A) being obtained by reacting a specific hydroxyacrylate (a1) with a diisocyanate (a2) having two isocyanate groups bonded to a divalent C
6-9
aromatic hydrocarbon group or a divalent C
6-9
bridged cyclic hydrocarbon group via a methylene group optionally substituted with a hydrocarbon group in place of a hydrogen atom, the proportion of the number of acryloyl groups present in the urethane acrylate compound (A) being 10% to less than 90% relative to the total number of (meth)acryloyl groups in the monomer composition.
提供了一种牙科可聚合单体组合物,可使固化产物具有高韧性和高刚度,并且含有这种牙科可聚合单体组合物和具有高机械性能的固化产物的牙科组合物。该牙科可聚合单体组合物包括一种脲基丙烯酸酯化合物(A)和一种具有至少一种可聚合基团,所述可聚合基团选自甲基丙烯酰基团和丙烯酰基团的可聚合化合物(B),脲基丙烯酸酯化合物(A)是通过将特定的羟基丙烯酸酯(a1)与具有两个异氰酸基团与一个二价C6-9芳香烃基或一个二价C6-9桥环烃基通过一个亚甲基团或者可选地替代氢原子的烃基的甲烷基团相结合的二异氰酸酯(a2)反应而得到的,相对于单体组合物中(甲)丙烯酰基团的总数,脲基丙烯酸酯化合物(A)中存在的丙烯酰基团的比例为10%至90%。