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公开(公告)号：EP2277495A1
公开(公告)日：2011-01-26
申请号：EP09738850.8
申请日：2009-04-28
IPC分类号： A61K6/08
CPC分类号： A61K6/083 , Y10T428/2993 , C08L33/00
摘要： The present invention provides a dental composition exhibiting both an excellent light diffusion property and excellent transparency, and having high mechanical strength and surface smoothness and gloss after polishing as a cured product and good handling properties as a paste. The present invention is a dental composition including: a polymerizable monomer (A); and an amorphous powder (B). The amorphous powder (B) has an average particle size of 1 to 20 µm, and includes silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles. The oxide contains a zirconium atom, a silicon atom, and an oxygen atom. The difference in refractive index between the cured product of the polymerizable monomer (A) and the amorphous powder (B) is 0.005 to 0.03.
摘要翻译： 本发明提供一种牙科用组合物，其既具有优异的光扩散性又具有优异的透明性，并且作为固化物具有高的机械强度和表面平滑性以及抛光后的光泽，并且具有良好的处理性能。 本发明是一种牙科组合物，其包含：可聚合单体（A）; 和无定形粉末（B）。 非晶质粉末（B）的平均粒径为1〜20μm，包含二氧化硅系微粒和覆盖二氧化硅系微粒表面的氧化物的覆盖层。 氧化物含有锆原子，硅原子和氧原子。 可聚合单体（A）的固化产物与无定形粉末（B）之间的折射率差为0.005至0.03。
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公开(公告)号：EP2279723A1
公开(公告)日：2011-02-02
申请号：EP09738848.2
申请日：2009-04-28
CPC分类号： A61K6/0088 , A61K6/083 , C08L33/00
摘要： A dental composition of the present invention includes: a polymerizable monomer (A); an amorphous filler (B) having an average particle size of 1 to 20 µm and including silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles; and inorganic particles (C) having an average particle of 0.1 to 1.0 µm. The oxide contains a zirconium atom, a silicon atom, and an oxygen atom. It is preferable that the dental composition contain 50 to 400 parts by weight of the filler (B) and 100 to 400 parts by weight of the inorganic particles (C) per 100 parts by weight of the polymerizable monomer (A).
摘要翻译： 本发明的牙科用组合物含有：聚合性单体（A）; 平均粒径为1〜20μm且含有二氧化硅系微粒和覆盖该二氧化硅系微粒表面的氧化物的覆盖层的无定形填充材料（B） 和平均粒径为0.1〜1.0μm的无机粒子（C）。 氧化物含有锆原子，硅原子和氧原子。 相对于100重量份聚合性单体（A），牙科用组合物优选含有50〜400重量份的填充剂（B）和100〜400重量份的无机粒子（C）。
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