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    • 82. 发明授权
    • Acid-tolerant dental composition
    • 耐酸牙科组合物
    • US07498367B2
    • 2009-03-03
    • US10906447
    • 2005-02-21
    • Xuejun Qian
    • Xuejun Qian
    • C08K5/34C08K3/40C08K3/08C08L33/00C08L31/00
    • A61K6/083A61K6/0023A61K6/0038C08L33/00
    • A dental composition compatible with acidic dental primers/adhesives, the dental composition comprising (A) 5% (w/w) to 90% (w/w) of at least one polymerizable monomer having at least one ethylenically unsaturated vinyl, acrylate, or methacrylate group; (B) 0.01% (w/w) to 10% (w/w) of at least one compound of structure where each of R1, R2, and R3 may be the same or different and is independently selected from H, alkyl, alkoxyl, aryl, acyl, allyl, pyridyl, —OH, alkenyl, aralkyl, cycloalkyl, and heterocyclic structure containing O, S, or N; (C) 0.01% (w/w) to 10% (w/w) of at least one hydroperoxide compound with at least one hydroperoxide groups attached to a tertiary carbon; (D) 5% (w/w) to 95% (w/w) of at least one finely divided filler; (E) 0% (w/w) to 25% (w/w) of one or more components selected from a solvent, a photoinitiator, a stabilizer, and/or an antimicrobial agent. One embodiment of the invention is a dental cementation or core buildup kit that has enhanced compatibility between the acidic primer/adhesive and the cement or core buildup material, and therefore enhanced adhesion to a tooth. The kit includes (I) an acidic primer/adhesive composition having a pH less than 4.5; and (II) a cement or core buildup material having the above described composition comprising components (A)-(E). Another embodiment of the invention is a method for adhering a prosthetic device to a tooth to restore the function and/or appearance of a diseased tooth. Another embodiment of the invention is a method of providing a temporary cement, crown and/or bridge, inlay, onlay, endodontic sealer, and/or an endodontic filling material, using the inventive composition.
    • 与酸性牙科引物/粘合剂相容的牙科用组合物,所述牙科用组合物包含(A)5%(w / w)至90%(w / w)的至少一种具有至少一个烯键式不饱和乙烯基,丙烯酸酯的可聚合单体或 甲基丙烯酸酯基; (B)0.01%(w / w)至10%(w / w)的至少一种结构化合物,其中R 1,R 2和R 3各自可以相同或不同,并且独立地选自H,烷基,烷氧基 芳基,酰基,烯丙基,吡啶基,-OH,烯基,芳烷基,环烷基和含有O,S或N的杂环结构; (C)0.01%(w / w)至10%(w / w)的至少一种氢过氧化物化合物,其中至少一个氢过氧化物基团连接到叔碳上; (D)5%(w / w)至95%(w / w)的至少一种细碎填料; (E)0%(w / w)至25%(w / w)的一种或多种选自溶剂,光引发剂,稳定剂和/或抗微生物剂的组分。 本发明的一个实施方案是具有增强的酸性底漆/粘合剂和水泥或芯堆积材料之间的相容性,因此增强了对牙齿的附着力的牙科牙固结或芯堆积试剂盒。 试剂盒包括(I)pH小于4.5的酸性底漆/粘合剂组合物; 和(II)具有包含组分(A) - (E)的上述组成的水泥或骨料堆积材料。 本发明的另一个实施例是一种用于将假体装置粘附到牙齿上以恢复患病牙齿的功能和/或外观的方法。 本发明的另一个实施方案是使用本发明的组合物提供临时水泥,牙冠和/或桥,镶嵌,镶嵌,牙根管封闭器和/或牙髓填充材料的方法。
    • 83. 发明申请
    • Laser-markable flameproof molding compounds and laser-markable and laser-marked products obtained from said molding compounds
    • 可激光标记的防火成型化合物和由所述模塑料获得的可激光标记和激光标记的产品
    • US20090048373A1
    • 2009-02-19
    • US11665549
    • 2005-10-15
    • Joachim ClaussHanno HuckstadtArnold SchnellerKlaus Kurz
    • Joachim ClaussHanno HuckstadtArnold SchnellerKlaus Kurz
    • C08K3/10H05B6/00C08K3/32C08K5/53C08K5/34C08K3/38
    • B41M5/267B41M5/28C08L101/00C08L2666/54
    • Novel halogen-free flame-retardant thermoplastic molding compositions are described, and give laser-markable moldings with increased quality of marking. The molding compositions comprise at least one thermoplastic A) and at least one light-sensitive compound of salt type B1) which within the polymer matrix when exposed to laser light changes its color or leads to a change in the color of the polymer matrix, and/or at least one light-sensitive or light-sensitizing oxide B2) which within the polymer matrix when exposed to laser light changes its color or leads to a change in the color of the polymer matrix, and at least one halogen-free compound or mixture C) which has a positive effect on the flammability and fire performance of the molding composition, and if appropriate, other conventional additives D).The invention further relates to moldings produced from these laser-markable flame-retardant molding compositions, and also to laser-marked moldings produced therefrom. A process for laser marking is also disclosed, as is the use of the laser-markable, flame-retardant molding compositions for production of laser-marked moldings.
    • 描述了新型无卤阻燃热塑性成型组合物,并且具有提高标记质量的可激光标记模制品。 模塑组合物包含至少一种热塑性A)和至少一种B1型盐的敏感化合物,其在暴露于激光下时在聚合物基质内改变其颜色或导致聚合物基质颜色的变化,以及 /或至少一种光敏或光敏氧化物B2),其在暴露于激光下时在聚合物基质内变化其颜色或导致聚合物基质的颜色变化,以及至少一种不含卤素的化合物或 混合物C),其对成型组合物的可燃性和耐火性能以及其它常规添加剂D)的适当影响。 本发明还涉及由这些可激光标记的阻燃成型组合物制成的模制品,以及由其制成的激光标记的模制品。 还公开了用于激光标记的方法,以及使用可激光标记的阻燃模制组合物来生产激光标记的模制品。