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    • 1. 发明申请
    • CATIONICALLY CURABLE DENTAL MATERIALS
    • 阳离子固化牙科材料
    • WO02055028A2
    • 2002-07-18
    • PCT/EP0200101
    • 2002-01-08
    • 3M ESPE AGHOESCHELER STEFANWEINMANN WOLFGANGSTIPPSCHILD ANDREAWEGNER SUSANNE
    • HOESCHELER STEFANWEINMANN WOLFGANGSTIPPSCHILD ANDREAWEGNER SUSANNE
    • A61K6/087
    • A61K6/005A61K6/09C08L83/12
    • The invention relates to a polymerizable dental material containing: (a) 3 to 80 wt. % of one or more cationically curable monomers; (b) 3 to 90 wt. % of one or more radio-opaque fillers; (c) 0.01 to 25 wt. % of initiators, retarders and/or accelerators, and; (d) 0 to 25 wt. % of auxiliary agents, whereby the cited percentages each refer to the total weight of the material. Filler (b) is produced by means of a melting method and is selected so that it has a refractive index of nD = 1.49 1.54, so that the viscosity of the polymerizable dental material, after a period of at least 9 months during which it was stored at a temperature ranging from 20 to 25 DEG C, has a value of +/- 50 % of the initial value measured 24 hours after the polymerizable dental material was produced, and so that the polymerizable dental material has a reactivity of the type that, once polymerization is initiated, the amount of the maximum heat flux generated by the dental material equals at least 0.8 mW/mg, and this maximum heat flux is attained within a period of no longer than 60 s.
    • 本发明涉及可聚合的牙科用组合物包括(a)3至80重量重量%的一种或多种阳离子固化的单体,(B)3至90重量%的一种或多种不透X射线的填料%,(C)0.01至25 .-%的引发剂,阻滞剂和/或促进剂,(D)0至25级重量%的助剂,在每种情况下所述百分比基于组合物的总重量,并且其中,所述填料(b)通过熔融法制造,并以这样的方式被选择 它具有ND的折射率= 1.49 - 1.54有,并且所述可聚合牙科用材料的Visikosität具有在20的存储温度的初始值的+/- 50%至25℃至少9个月的值,测得的 制备可聚合的牙科材料的24个小时后,和可聚合的牙科材料具有反应性的,使得,在聚合开始后,由牙科材料产生,至少为0的最大热通量的量, 为8毫瓦/ mg和该最大热通量至多60秒内完成。