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    • 9. 发明公开
    • PARTICULATE HYDROGEL MATERIAL
    • 颗粒状水凝胶材料
    • EP0967956A1
    • 2000-01-05
    • EP98907070.1
    • 1998-02-26
    • BTG INTERNATIONAL LIMITED
    • AKINMADE, Ademola Olaseni
    • A61K6/083
    • A61K6/0017A61K6/0023A61K6/0835C03C17/32C04B28/28C04B2111/00836C04B2111/80C04B20/008C04B40/06C08L33/00C08L75/16
    • A particulate hydrogel material is made by grinding the product of reacting submicron acid-degradable fluoridated aluminosilicate glass to completion with poly(acrylic acid). This material is used in a two-paste cement pack for a dental cement which, when mixed, cures by light-activation, a glass ionomer reaction and a chemical curing. Both pastes contain cross-linkable methacrylate monomers and the above pre-reacted particulate material, which is fluorine-containing glass ionomer cement totally depleted of unreacted glass. The first paste also contains poly(acrylic acid) or poly(vinyl phosphonic) acid or both. The second paste, which is a command-cure cement in its own right, contains a zinc glass and poly(acrylic acid) but the reaction between these is held in suspended animation until the paste is exposed to air and light.
    • 通过研磨亚微米酸降解氟化铝硅酸盐玻璃与聚(丙烯酸)完成反应的产物来制备颗粒水凝胶材料。 该材料用于牙科用水泥的双糊状水泥包装,其在混合时通过光活化,玻璃离聚物反应和化学固化来固化。 两种糊都含有可交联的甲基丙烯酸酯单体和上述预反应的颗粒材料,它是含未完全去除未反应玻璃的含氟玻璃离聚物水泥。 第一种糊剂还含有聚(丙烯酸)或聚(乙烯基膦酸)或二者。 第二种糊剂本身就是一种指令固化水泥,它含有锌玻璃和聚丙烯酸,但它们之间的反应是暂时的,直到糊状物暴露在空气和光下。