Polyurethane nanocomposites
    25.
    发明授权
    Polyurethane nanocomposites 有权
    聚氨酯纳米复合材料

    公开(公告)号:US09540479B2

    公开(公告)日:2017-01-10

    申请号:US12978699

    申请日:2010-12-27

    摘要: Polyurethane nanocomposites are provided which include a polyurethane and surface modified silica nanoparticles covalently bound into the polyurethane. High loadings in excess of 30% may be achieved. In some embodiments, the silica nanoparticles are covalently bound to the polyurethane polymer through a linkage derived from a surface-modifying compound comprising a silane functional group and a polyol segment. In some embodiments the polyurethane nanocomposite may be provided as a tape or film. In addition, precursors for a polyurethane nanocomposites are provided comprising: a first polyol and surface modified silica nanoparticles dispersed within the first polyol. In some embodiments, the silica nanoparticles are surface-modified by reaction with a surface-modifying compound comprising a silane functional group and a polyol segment derived from a second polyol, which may be the same or different from the first polyol.

    摘要翻译: 提供聚氨酯纳米复合材料,其包括共聚在聚氨酯中的聚氨酯和表面改性的二氧化硅纳米粒子。 可以实现超过30%的高负荷。 在一些实施方案中,二氧化硅纳米颗粒通过源自包含硅烷官能团和多元醇链段的表面改性化合物的连接键与聚氨酯聚合物共价结合。 在一些实施方案中,聚氨酯纳米复合材料可以作为带或膜提供。 此外,提供了聚氨酯纳米复合材料的前体,其包含:分散在第一多元醇内的第一多元醇和表面改性的二氧化硅纳米颗粒。 在一些实施方案中,二氧化硅纳米颗粒通过与包含硅烷官能团的表面改性化合物和衍生自可与第一多元醇相同或不同的第二多元醇的多元醇部分的反应进行表面改性。

    Dental composition containing a polyfunctional (meth)acrylate comprising urethane, urea or amide groups, method of production and use thereof
    26.
    发明授权
    Dental composition containing a polyfunctional (meth)acrylate comprising urethane, urea or amide groups, method of production and use thereof 有权
    含有包含氨基甲酸酯,脲或酰胺基团的多官能(甲基)丙烯酸酯的牙科用组合物,其制造方法和用途

    公开(公告)号:US08329776B2

    公开(公告)日:2012-12-11

    申请号:US12666833

    申请日:2008-06-27

    IPC分类号: A61K6/083 A61C5/00 C08G18/04

    摘要: The invention relates to a dental composition comprising a) a hardenable compound (A1), b) a filler (B1), c) an initiator (C1) being able to initiate curing of compound (A1), compound (A1) having the structure A-(-S1-U-S2-MA)n, with A being a connector element, S1 being a spacergroup comprised of units connected with each other and comprising at least 4 units, S2 being a spacergroup comprised of units connected with each other and comprising at least 4 units, U being an urethane, an amide or an urea group connecting spacergroups S1 and S2, MA being an acrylate or methacrylate group and n being 3 to 6. The invention also relates to a process of producing this dental composition and using the dental composition e.g. as a temporary and/or long term crown and bridge material.

    摘要翻译: 本发明涉及一种牙科用组合物,其含有a)可硬化化合物(A1),b)填料(B1),c)能引发化合物(A1)固化的引发剂(C1),具有结构 A - ( - S1-U-S2-MA)n,其中A是连接器元件,S1是由彼此连接并且包括至少4个单元的单元组成的空间组,S2是由相互连接的单元组成的空间组 并且包含至少4个单元,U是连接空间群S1和S2的氨基甲酸酯,酰胺或脲基,MA是丙烯酸酯或甲基丙烯酸酯基,n是3至6.本发明还涉及制备该牙科组合物的方法 并使用牙科组合物例如 作为临时和/或长期的冠和桥材料。

    DENTAL COMPOSITION CONTAINING A POLYFUNCTIONAL (METH)ACRYLATE COMPRISING URETHANE, UREA OR AMIDE GROUPS, METHOD OF PRODUCTION AND USE THEREOF
    27.
    发明申请
    DENTAL COMPOSITION CONTAINING A POLYFUNCTIONAL (METH)ACRYLATE COMPRISING URETHANE, UREA OR AMIDE GROUPS, METHOD OF PRODUCTION AND USE THEREOF 有权
    含有包含URETHANE,UREA或AMEC组合的多官能(甲基)丙烯酸酯的牙齿组合物,其生产方法及其用途

    公开(公告)号:US20110053116A1

    公开(公告)日:2011-03-03

    申请号:US12666833

    申请日:2008-06-27

    摘要: The invention relates to a dental composition comprising a) a hardenable compound (A1), b) a filler (B1), c) an initiator (C1) being able to initiate curing of compound (A1), compound (A1) having the structure A-(-S1-U-S2-MA)n, with A being a connector element, S1 being a spacergroup comprised of units connected with each other and comprising at least 4 units, S2 being a spacergroup comprised of units connected with each other and comprising at least 4 units, U being an urethane, an amide or an urea group connecting spacergroups S1 and S2, MA being an acrylate or methacrylate group and n being 3 to 6. The invention also relates to a process of producing this dental composition and using the dental composition e.g. as a temporary and/or long term crown and bridge material.

    摘要翻译: 本发明涉及一种牙科用组合物,其含有a)可硬化化合物(A1),b)填料(B1),c)能引发化合物(A1)固化的引发剂(C1),具有结构 A - ( - S1-U-S2-MA)n,其中A是连接器元件,S1是由彼此连接并且包括至少4个单元的单元组成的空间组,S2是由相互连接的单元组成的空间组 并且包含至少4个单元,U是连接空间群S1和S2的氨基甲酸酯,酰胺或脲基,MA是丙烯酸酯或甲基丙烯酸酯基,n是3至6.本发明还涉及制备该牙科组合物的方法 并使用牙科组合物例如 作为临时和/或长期的冠和桥材料。