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    • 8. 发明授权
    • Cationically curable dental materials
    • 阳离子固化牙科材料
    • US07098259B2
    • 2006-08-29
    • US10250812
    • 2002-01-08
    • Stefan HoeschelerWolfgang WeinmannAndrea StippschildSusanne Wegner
    • Stefan HoeschelerWolfgang WeinmannAndrea StippschildSusanne Wegner
    • A61K6/08A61K5/00C08K3/22
    • 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° 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 60s.
    • 本发明涉及一种可聚合牙科材料,其包含:(a)3-80wt。 %的一种或多种阳离子可固化的单体; (b)3-90wt。 %的一种或多种不透射线填料; (c)0.01〜25wt。 %的引发剂,缓凝剂和/或促进剂,以及; (d)0〜25wt。 %的辅助剂,其中引用的百分比各自指材料的总重量。 填料(b)通过熔融法生产,选择为具有n D D = 1.49-1.54的折射率,使得可聚合牙科材料的粘度在一段时间之后 在20〜25℃的温度范围内保存至少9个月,在可聚合牙科材料生产后24小时测量的初始值的+/- 50%的值, 可聚合牙科材料具有这样的反应性,其一旦聚合开始,由牙科材料产生的最大热通量的量等于至少0.8mW / mg,并且该最大热通量在不超过 60年代。