会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明申请
    • REACTIVE OLIGOMERIC THIOL AND ENE MATERIALS AS DENTAL RESTORATIVE MIXTURES
    • 反应性低聚物和作为牙齿恢复混合物的材料
    • WO2005086911A2
    • 2005-09-22
    • PCT/US2005/007938
    • 2005-03-08
    • THE REGENTS OF THE UNIVERSITY OF COLORADOBOWMAN, Christopher, N.CARIOSCIA, JacquelynLU, HuiSTANSBURY, Jeffrey, W.
    • BOWMAN, Christopher, N.CARIOSCIA, JacquelynLU, HuiSTANSBURY, Jeffrey, W.
    • A61C5/00A61K6/08
    • A61K6/083C08L35/08
    • The present invention provides a dental composition comprising a curable blend of one or more polythiol compounds and one or more polyvinyl compounds; where one or both compounds are oligomers. In one aspect, the polythiol compounds are polythiol oligomers formed by prepolymerization of polyvinyl monomers in the presence of an excess of polythiol monomers. In another aspect, the polyvinyl compounds are polyvinyl oligomers formed by prepolymerization of polythiol monomers in the presence of an excess of polyvinyl monomers. The dental composition may further comprise one or more fillers or photoinitiators known in the art. The invention also comprises methods of making a dental prosthesis comprising the composition described above. Use of the thiol-ene oligomeric system results in cured (polymerized) dental compositions having improved physical properties, including low-shrinkage properties and reduced shrinkage induced-stress, enhanced double bond conversion percentage, and reduced odor.
    • 本发明提供一种牙科用组合物,其包含一种或多种多硫醇化合物与一种或多种聚乙烯基化合物的可固化共混物; 其中一种或两种化合物是低聚物。 一方面,多硫醇化合物是通过在过量的多硫醇单体的存在下聚乙烯基单体预聚而形成的多硫醇低聚物。 另一方面,聚乙烯基化合物是通过在过量的聚乙烯基单体的存在下多硫醇单体的预聚合形成的聚乙烯基低聚物。 牙科用组合物还可以包含本领域已知的一种或多种填料或光引发剂。 本发明还包括制备包含上述组合物的牙科假体的方法。 硫醇烯低聚体系的使用导致具有改善的物理性能的固化(聚合)牙科组合物,包括低收缩性能和降低的收缩诱导应力,增强的双键转化百分比和减少的气味。
    • 8. 发明申请
    • NOVEL PHOTOPOLYMERS AND USE IN DENTAL RESTORATIVE MATERIALS
    • 新型光催化剂和用于牙科恢复材料
    • WO2005041807A1
    • 2005-05-12
    • PCT/US2004/034968
    • 2004-10-22
    • THE REGENTS OF THE UNIVERSITY OF COLORADOBOWMAN, Christopher, N.LU, HuiSTANSBURY, Jeffrey, W.
    • BOWMAN, Christopher, N.LU, HuiSTANSBURY, Jeffrey, W.
    • A61C13/00
    • C08G75/045A61C13/08A61C13/087A61K6/083C08F2/50G03F7/0275C08L33/00
    • Photopolymerizable polymer composites based on dimethacrylate systems have been increasingly utilized as dental restorative materials. One of the biggest drawbacks of current dental resin systems is the volume shrinkage and shrinkage induced stresses that arise during the polymerization. Other major problems include incomplete double bond conversion and insufficient wear resistance. This invention involves the development of an entirely novel approach to the photopolymerization process that utilizes thiol-ene systems as low shrinkage and ultra-low shrinkage stress dental restorative materials. Compared with the traditional dimethacrylate dental resins, these novel photopolymerizations have demonstrated a dramatically decreased volume shrinkage, extremely rapid polymerization, abilities to photopolymerize ultrathick materials and achieve much higher conversion, lack of oxygen inhibition and ultra-low shrinkage stress due to low volume shrinkage and drastically delayed gel point conversion. These polymers have thus shown outstanding suitability as dental restorative materials.
    • 基于二甲基丙烯酸酯体系的可光聚合聚合物复合材料越来越多地被用作牙科修复材料。 现有牙科树脂系统的最大缺点之一是在聚合期间产生的体积收缩和收缩诱导的应力。 其他主要问题包括不完全双键转化和耐磨性不足。 本发明涉及开发一种全新的光聚合方法,其利用硫醇系统作为低收缩和超低收缩应力牙科修复材料。 与传统的二甲基丙烯酸酯牙科树脂相比,这些新型光聚合已经显示体积收缩率显着降低,聚合极快,光聚合超薄材料的能力,并且由于低体积收缩而实现了更高的转化率,缺少氧抑制和超低收缩应力, 急剧延迟凝胶点转化。 因此,这些聚合物显示出作为牙科修复材料的突出的适用性。