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    • 3. 发明公开
    • Gel-like tooth whitening material composition
    • 在Gelform中的Zahnbleichmittel
    • EP1506771A1
    • 2005-02-16
    • EP04018118.2
    • 2004-07-30
    • GC Corporation
    • Mori, DaizaburoYamaguchi, ShinIkushima, Keisuke
    • A61K7/20A61K7/22
    • A61Q11/00A61K8/345A61K8/38A61K8/42A61Q11/02
    • To avoid "adhesion" to a spatula or a vessel and "stringiness", which are problems associated with the conventional gel-like tooth whitening material, to give excellent "adhesiveness to a tooth surface", and to prevent "outflow from a tray", a gel-like tooth whitening material composition contains 60 to 90 parts by weight of a polyhydric alcohol as a primary solvent, 0.5 to 15 parts by weight of a methyl vinyl ether-maleic anhydride copolymer as a thickener, and 1 to 25 parts by weight of urea peroxide as a whitening component, the methyl vinyl ether-maleic anhydride copolymer being neutralized to a pH range of 5 to 7 under a condition containing no water, the methyl vinyl ether-maleic anhydride copolymer being preferably a copolymer crosslinked with 1,9-decadiene, and the thickener containing preferably the methyl vinyl ether-maleic anhydride copolymer in a proportion of 20% by weight or more.
    • 为了避免与刮板或容器的“粘附”以及与常规的凝胶状牙齿美白材料相关的问题的“拉丝性”,以提供优异的“与牙齿表面的粘附性”,并且防止“从托盘流出” 凝胶状牙齿增白材料组合物含有60〜90重量份作为主要溶剂的多元醇,0.5〜15重量份作为增稠剂的甲基乙烯基醚 - 马来酸酐共聚物和1〜25重量份 作为增白成分的过氧化脲的重量,甲基乙烯基醚 - 马来酸酐共聚物在不含水的条件下中和到5〜7的pH范围,甲基乙烯基醚 - 马来酸酐共聚物优选为1, 并且所述增稠剂优选含有20重量%以上的甲基乙烯基醚 - 马来酸酐共聚物。