申请人:Kuraray Noritake Dental Inc.
公开号:EP3778681A1
公开(公告)日:2021-02-17
The present invention provides a photocurable resin composition that has good fabricability, and that exhibits superior flexibility, fracture resistance, and water resistance in the form of a cured product. The present invention relates to a photocurable resin composition comprising:
a urethanized (meth)acrylic compound (A);
a mono(meth)acrylic acid ester compound (B) containing no urethane bond; and
a photopolymerization initiator (C),
the urethanized (meth)acrylic compound (A) being a (meth)acrylate comprising, per molecule, at least one kind of structure selected from the group consisting of a polyester, a polycarbonate, a polyurethane, a polyether, a poly-conjugated diene, and a hydrogenated poly-conjugated diene; and a urethane bond,
the mono(meth)acrylic acid ester compound (B) containing no urethane bond comprising at least one selected from the group consisting of a mono(meth)acrylic acid ester compound (b-I) represented by general formula (I), and a mono(meth)acrylic acid ester compound (b-II) represented by general formula (II).
本发明提供了一种光固化树脂组合物,该组合物具有良好的可制造性,并以固化产品的形式表现出优异的柔韧性、抗断裂性和耐水性。本发明涉及一种光固化树脂组合物,包括
聚氨酯化(甲基)丙烯酸化合物 (A);
不含氨基甲酸酯键的单(甲基)丙烯酸酯化合物 (B);以及
光聚合引发剂 (C)、
聚氨酯化(甲基)丙烯酸酯化合物(A)是一种(甲基)丙烯酸酯,其每个分子包含至少一种结构,这些结构选自由聚酯、聚碳酸酯、聚氨酯、聚醚、聚共轭二烯和氢化聚共轭二烯组成的组;以及一个聚氨酯键、
不含氨基甲酸乙酯键的单(甲基)丙烯酸酯化合物(B)包括至少一种选自通式(I)代表的单(甲基)丙烯酸酯化合物(b-I)和通式(II)代表的单(甲基)丙烯酸酯化合物(b-II)组成的组。