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    • 5. 发明授权
    • Visible light curable dental compositions
    • 可见光固化牙科用组合物
    • US4553940A
    • 1985-11-19
    • US652172
    • 1984-09-18
    • Francis F. KoblitzRoy L. Smith
    • Francis F. KoblitzRoy L. Smith
    • A61K6/08A61K6/09
    • A61K6/083A61K6/08A61K6/09
    • Visible light curable dental restorations are provided having improved color stability. According to a preferred embodiment, visible light hardenable restorative materials are formulated from a major proportion of inorganic filler and a minor proportion of a resin component comprising a binder resin selected from the group of acrylated polyesters, acrylated polyesters reacted with an isocyanate, and hydroxyalkyl acrylic esters reacted with an isocyanate, polymerizable acrylic diluent monomer in an amount sufficient to control the viscosity of the resin component, and a photosensitizing system comprising of from about 0.05% to about 0.50% by weight of the restorative material of an alpha diketone together with an amine reducing agent. American Dental Association color stability standards are met by these compositions.
    • 提供具有改善的颜色稳定性的可见光固化牙科修复体。 根据优选实施方案,可见光可硬化的修复材料由主要比例的无机填料和少量的树脂组分配制,所述树脂组分包含选自丙烯酸酯化的聚酯,与异氰酸酯反应的丙烯酸酯化聚酯和丙烯酸羟烷基酯的粘合剂树脂 酯与异氰酸酯,可聚合的丙烯酸类稀释剂单体反应,其量足以控制树脂组分的粘度,以及光敏剂体系,其包含按重量计约0.05%至约0.50%的α-二酮的修复材料和 胺还原剂。 美国牙科协会颜色稳定性标准由这些组合物来满足。
    • 10. 发明授权
    • Flame retardant sealant
    • 阻燃密封剂
    • US4595724A
    • 1986-06-17
    • US763076
    • 1985-08-05
    • Francis F. Koblitz
    • Francis F. Koblitz
    • C08K3/22C08L27/16C08L33/06C08L51/04H01R4/70
    • H01R4/70C08K3/22C08L27/16C08L33/06C08L51/04
    • A fusible flame retardant sealant composition comprised of a homogeneous mixture of polyvinylidene fluoride, methacrylate polymer, and antimony oxide is disclosed. In the preferred embodiment, the sealant composition also contains zinc oxide. The sealant composition as disclosed herein is used to make fusible sealant inserts for preinsulated electrical connectors having a heat recoverable sleeve. The connectors are essentially comprising a conductor connecting means positioned within the heat recoverable sleeve, the conductor connecting means being designed to receive and electrically connect two or more electrical conducting members, the members being inserted from the ends of the sleeve, and one fusible sealant insert member made of said composition positioned near each one of the open ends of the sleeve. Upon application of sufficient heat to the sleeve, the sleeve recovers around the conductor connecting means and the electrical conducting members, and the fusible sealant insert members soften, conform and adapt to the conducting member, adhere to the conducting member and the sleeve, and seal the interstices between the conducting member and the recovered sleeve. The resulting seal is flame retardant and resistant to corrosive chemicals such as jet fuel and lubricant.
    • 公开了一种由聚偏二氟乙烯,甲基丙烯酸酯聚合物和氧化锑的均匀混合物组成的可熔阻燃密封剂组合物。 在优选的实施方案中,密封剂组合物还含有氧化锌。 本文公开的密封剂组合物用于制造用于具有可热回收套筒的预绝缘电连接器的可熔密封剂插入物。 连接器基本上包括位于可加热回收套筒内的导体连接装置,该导体连接装置被设计成接收和电连接两个或多个导电构件,这些构件从套筒的端部插入,以及一个可熔密封剂插入件 由所述组合物制成的构件定位在套筒的每个开口端附近。 当向套管施加足够的热量时,套管围绕导体连接装置和导电构件回收,并且可熔密封剂插入件软化,适应并适应于导电构件,粘附到导电构件和套筒上,并且密封 导电构件和回收套管之间的间隙。 所得的密封件是阻燃的,并且耐腐蚀性化学品,例如喷气燃料和润滑剂。