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    • 27. 发明申请
    • REACTIVE OLIGOMERIC THIOL AND ENE MATERIALS AS DENTAL RESTORATIVE MIXTURES
    • 反应性低聚噻吩并且使材料作为牙齿复原混合物
    • WO2005086911A3
    • 2005-11-10
    • PCT/US2005007938
    • 2005-03-08
    • UNIV COLORADOBOWMAN CHRISTOPHER NCARIOSCIA JACQUELYNLU HUISTANSBURY JEFFREY W
    • BOWMAN CHRISTOPHER NCARIOSCIA 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.
    • 本发明提供了牙科组合物,其包含一种或多种多硫醇化合物和一种或多种聚乙烯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存在下使聚乙烯单体预聚合而形成的多硫醇低聚物。 另一方面,聚乙烯基化合物是在过量的聚乙烯基单体存在下通过聚硫醇单体的预聚合形成的聚乙烯基低聚物。 牙科用组合物可进一步包含本领域已知的一种或多种填充剂或光引发剂。 本发明还包括制造包含上述组合物的假牙的方法。 硫醇 - 烯低聚体系的使用导致固化(聚合)的牙科组合物具有改进的物理性能,包括低收缩性能和降低的收缩诱导应力,提高的双键转化率和降低的气味。