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1. 发明授权

US6136737A Glass powder for dental glass ionomer cement 有权
标题翻译：用于牙科玻璃离子水泥的玻璃粉
公开(公告)号：US6136737A
公开(公告)日：2000-10-24
申请号：US206341
申请日：1998-12-07
申请人： Atsuhiro Todo , Michiko Hirasawa , Shinichi Kato
发明人： Atsuhiro Todo , Michiko Hirasawa , Shinichi Kato
IPC分类号： A61K6/06 , A61K6/083 , C03C8/06 , C03C10/16 , C03C3/062
CPC分类号： A61K6/0017 , A61K6/0023 , A61K6/0835 , C03C10/16
摘要： A glass powder for dental glass ionomer cement is disclosed, comprising a fluoroaluminosilicate glass powder for dental glass ionomer cement having a specific gravity of 2.4.about.4.0, a mean particle size of 0.02.about.4 .mu.m, and a BET specific surface area of 2.5.about.6.0 m.sup.2 /g. Further, it preferably has a maximum particle size of less than 4 .mu.m and contains 10.about.21% by weight of Al.sup.3+, 9.about.21% by weight of Si.sup.4+, 1.about.20% by weight of F.sup.-, and 10.about.34% by weight in total of Sr.sup.2+ and/or Ca.sup.2+ in its components. The glass powder for dental glass ionomer cement of the invention can impart superior surface smoothness and film thickness, while utilizing superior characteristics inherent to the conventional dental glass ionomer cement, such as superior biocompatibility and adhesive strength.
摘要翻译：公开了一种用于牙科玻璃离聚物粘合剂的玻璃粉末，其包含比重为2.4DIFFERENCE 4.0，平均颗粒尺寸为0.02差异为4μm，BET比表面积为2.5分的牙科玻璃离聚物粘固剂用氟铝硅酸盐玻璃粉末 6.0平方米/克。此外，其优选具有小于4μm的最大粒度，并且包含10重量％的Al 3+，21重量％的Si 4+，1重量％的F 4和10重量％的差异34％的总成分中的Sr2 +和/或Ca2 +。本发明的牙科玻璃离子交联聚合物水泥玻璃粉末可以赋予优异的表面光滑度和膜厚度，同时利用传统牙科玻璃离聚物粘固剂固有的优异特性，例如优异的生物相容性和粘合强度。

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