申请人:Tokuyama Dental Corporation
公开号:EP3682862A1
公开(公告)日:2020-07-22
A dental curable composition which comprises a radically polymerizable monomer component (A), a polymerizing catalyst (B) and an inorganic granular material (C), characterized in that:
the radically polymerizable monomer component (A) contains a bifunctional monomer (A-1) represented by the following formula (α),
RP-SP1-RP (α)
where, Rp is a radically polymerizable group represented by CH2=C(R)-COO- or CH2=C(R)-CONH-, wherein R is a hydrogen atom or a hydrocarbon group having 1 to 3 carbon atoms, and SP1 is a hydrocarbon group having 5 to 15 carbon atoms,
and the content of the bifunctional monomer (A-1) in the radically polymerizable monomer component (A) is 5 to 40% by mass under a condition that the content of a diluting monomer (A-2) represented by the following formula (β),
RP-SP2-RP (β)
where, Rp is as defined in the above formula (α), and SP2 is an aliphatic hydrocarbon group different from SP1, an oxygen-containing aliphatic hydrocarbon group having not less than 2 oxygen atoms, or an oxygen-containing aromatic hydrocarbon group having not less than 3 oxygen atoms,
is zero or not more than 10% by mass.
一种牙科固化组合物,由可径向聚合的单体组分(A)、聚合催化剂(B)和无机颗粒材料(C)组成,其特征在于:可径向聚合的单体组分(A)含有由下式(α)表示的双官能团单体(A-1)、
RP-SP1-RP (α)
其中,Rp 是由 CH2=C(R)-COO- 或 CH2=C(R)-CONH- 表示的可辐射聚合基团,其中 R 是氢原子或具有 1 至 3 个碳原子的烃基,SP1 是具有 5 至 15 个碳原子的烃基,双官能团单体(A-1)在可辐射聚合单体组分(A)中的含量按质量计为 5 至 40%,条件是由下式(β)表示的稀释单体(A-2)的含量、
RP-SP2-RP (β)
其中,Rp 如上式(α)所定义,SP2 是不同于 SP1 的脂肪族烃基、具有不少于 2 个氧原子的含 氧脂肪族烃基或具有不少于 3 个氧原子的含氧芳香族烃基、
质量百分比为零或不超过 10%。