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1. 发明授权

US06866840B2 Tooth-cleaning composition and method for producing it 失效
标题翻译：牙齿清洁组合物及其制造方法
公开(公告)号：US06866840B2
公开(公告)日：2005-03-15
申请号：US10259231
申请日：2002-09-27
申请人： Naofumi Yano , Hiroyuki Sasaki
发明人： Naofumi Yano , Hiroyuki Sasaki
IPC分类号： A61K8/25 , A61Q11/00 , A61K7/16
CPC分类号： A61Q11/00 , A61K8/25 , A61K2800/412
摘要： The object of the invention is to provide a tooth-cleaning composition capable of well removing staining matters such as tar of tobacco and tea incrustation from teeth merely by cleaning teeth with it in a simplified manner for a short period of time not damaging the surfaces of teeth to thereby estethicize the thus-cleaned teeth, and to provide a method for producing the composition. The object can be attained by a tooth-cleaning composition that contains silicon nitride having a mean particle size of from 0.5 to 10 μm. The method for producing the tooth-cleaning composition comprises mixing powder of silicon nitride, powder of natural wax, and a solution that contains a water-soluble polymer followed by stirring the resulting mixture until its viscosity at 25° C. reaches from 100,000 to 500,000 cps. Not containing expensive diamond powder but containing silicon nitride powder, a type of ceramics of high hardness, the tooth-cleaning composition of the invention effectively removes staining matters such as tar of tobacco and tea incrustation from teeth merely by cleaning teeth with it in a simplified manner.
摘要翻译：本发明的目的是提供一种牙齿清洁组合物，其能够通过简单的方式很好地除去诸如烟草的焦油和来自牙齿的茶结垢等染色物质，而不会损坏牙齿的表面从而使由此清洁的牙齿渗透，并提供一种生产该组合物的方法。该目的可以通过含有平均粒径为0.5-10μm的氮化硅的牙齿清洁组合物来实现。制造牙齿清洁组合物的方法包括将氮化硅粉末，天然蜡粉末和含有水溶性聚合物的溶液混合，然后搅拌所得混合物直到其在25℃下的粘度达到100,000至500,000 cps。不含昂贵的金刚石粉末，但含有高硬度陶瓷的氮化硅粉末，本发明的牙齿清洁剂组合物只需用简单的清洁牙齿即可清除牙齿上的烟草焦油和茶叶结垢等染色物质方式。

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