申请人:Matsushige Koji
公开号:US20120238658A1
公开(公告)日:2012-09-20
[Problems] To provide a liquid dental adhesive composition which contains a phosphoric acid-type compound having a hydrogenphosphoric diester group as an acidic group-containing polymerizable monomer and, further, contains polyvalent metal ions, effectively preventing not only the gelation but also the formation of precipitates (cloudiness) during the storage.
[Means for Solution] A dental adhesive composition which is acidic and contains an acidic group-containing polymerizable monomer (A), polyvalent metal ions (B), water (C), a water-soluble organic solvent (D) and fluoride ions (E), wherein at least 35% by mole of the acidic group-containing polymerizable monomer (A) is a phosphoric acid-type compound having a hydrogenphosphoric diester group, and the contents of the fluoride ions (E) and the polyvalent metal ions (B) are so set that a valence number ratio (R
F
) defined by the following formula (1):
R
F
=V
F
/TV
P
(1)
wherein V
F
is a valence number of the fluoride ions (E) contained in the composition, and TV
P
is a total valence number of the polyvalent metal ions (B) contained in the composition,
satisfies a range of 0.2 to 2.0.
提供一种液体牙科粘合剂组合物,其中包含具有氢磷酸二酯基团作为酸性基团的聚合可单体的磷酸型化合物,并且进一步含有多价金属离子,有效地防止在储存期间不仅凝胶化,还防止沉淀(混浊)的形成。解决方案是一种含有酸性和含有酸性基团的聚合可单体(A)、多价金属离子(B)、水(C)、水溶性有机溶剂(D)和氟离子(E)的牙科粘合剂组合物,其中至少35%的含有酸性基团的聚合可单体(A)是具有氢磷酸二酯基团的磷酸型化合物,并且氟离子(E)和多价金属离子(B)的含量设置得使得以下公式(1)定义的价数比率(RF)满足0.2至2.0的范围:RF=VF/TVP(1)其中VF是组合物中含有的氟离子(E)的价数,而TVP是组合物中含有的多价金属离子(B)的总价数。