发明名称 ABRASIVE SILICA TO BE USED IN TOOTHPASTE
摘要 The invention discloses precipitated silica having: a BET specific surface area of 60 to 150 m<2>/g; an RDA abrasiveness of 30 to 90; a refraction coefficient of 1400 to 1450; a DOP oil absorption of 115 to 170 ml/100 g, preferably of more than 120 ml/100 g to 170 ml/100 g and a d50 particle median diameter of 6 to 13 mu m. The invention also discloses toothpaste containing the said silica in a proportion of 5 to 50 % of its weight.
申请公布号 WO9801391(A1) 申请公布日期 1998.01.15
申请号 WO1997FR01207 申请日期 1997.07.04
申请人 RHONE-POULENC CHIMIE;AMICHE, FREDERIC;DROMARD, ADRIEN;CHEVALLIER, YVONICK 发明人 AMICHE, FREDERIC;DROMARD, ADRIEN;CHEVALLIER, YVONICK
分类号 A61K8/00;A61K8/25;A61Q11/00;C01B33/193;(IPC1-7):C01B33/193;A61K7/16 主分类号 A61K8/00
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