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    • 3. 发明授权
    • Method for producing calcium phosphate coating film
    • 生产磷酸钙涂膜的方法
    • US6153266A
    • 2000-11-28
    • US206265
    • 1998-12-07
    • Yoshiyuki YokogawaTetsuya KameyamaYukari KawamotoKaori NishizawaFukue NagataKohji OkadaHiroshi Sumi
    • Yoshiyuki YokogawaTetsuya KameyamaYukari KawamotoKaori NishizawaFukue NagataKohji OkadaHiroshi Sumi
    • A61L27/00A61K6/033C01B25/32D06M11/71D06M11/72B05D1/38B05D1/18B05D3/02
    • D06M11/71D06M11/72
    • The present invention provides a method for producing a calcium phosphate coating film on the surface of a substrate, even a substrate which has poor heat resistance. The method comprises the steps of soaking a substrate in a first solution containing phosphate ions, inter alia, aqueous solutions of a basic phosphate salt such as Na.sub.3 PO.sub.4 or Na.sub.2 HPO.sub.4 ; removing the substrate and drying it; and soaking the substrate in a second solution (aqueous solution) containing calcium ions, to thereby obtain a coating film comprising hydroxyapatite or a mixture containing hydroxyapatite and a hydroxyapatite precursor. The substrate removed from the second solution may be soaked in a third solution (aqueous solution) containing an apatite component at a substantially saturated or supersaturated concentration, to thereby form a hydroxyapatite coating film. There may be used substrates formed of metals, ceramics, organic polymer materials, etc. The method is applicable to a substrate having poor heat resistance, such as synthetic resin fabric, due to omission of high-temperature treatment.
    • 本发明提供一种在基材表面即使是耐热性差的基材上生产磷酸钙涂膜的方法。 该方法包括以下步骤:将底物浸泡在含有磷酸根离子的第一溶液中,特别是碱性磷酸盐如Na 3 PO 4或Na 2 HPO 4的水溶液; 去除基底并干燥; 并将基材浸渍在含有钙离子的第二溶液(水溶液)中,从而得到包含羟基磷灰石或含羟基磷灰石和羟基磷灰石前体的混合物的涂膜。 从第二溶液中除去的基材可以浸渍在含有基本上饱和或过饱和浓度的磷灰石组分的第三溶液(水溶液)中,从而形成羟基磷灰石涂膜。 可以使用由金属,陶瓷,有机聚合物材料等形成的基材。由于省略了高温处理,该方法可应用于耐热性差的基材如合成树脂织物。