Use of agglomerates of silicic acid as fillers in dental materials
    5.
    发明授权
    Use of agglomerates of silicic acid as fillers in dental materials 失效
    在牙科材料中使用硅酸附聚物作为填料

    公开(公告)号:US4389497A

    公开(公告)日:1983-06-21

    申请号:US285115

    申请日:1981-07-22

    摘要: The invention relates to the use of agglomerates of silicic acid having an average agglomerate size of 0.5 to 50 .mu.m, containing primary particles of silicic acid having an average particle size of 1 to 100 nm and serving as filler in dental materials on the basis of ethylenically unsaturated polymerizable monomers. This reinforcing filler is practically colorless and can be blended in considerable quantity into the polymerizable monomer material especially mono-functional and di-functional as well as polyfunctional esters of the acrylic acid and the methacrylic acid and yields a satisfactorily processable plastically deformable paste. If necessary, the agglomerated silicic acid is used together with non-agglomerated micro-fine silicic acid of an average particle size of 1 to 100 nm. The shaped bodies obtained after the curing of the polymerizable material with the fillers show superior compressive strength, low thermal expansion, high colour stability and low water absorption, and moreover can be finished to high luster. The agglomerated fillers provided according to the invention are generally suitable for tooth filling preparations and tooth restoration materials as well as for the production of artificial teeth.

    摘要翻译: PCT No.PCT / EP80 / 00135 Sec。 371日期1981年7月22日 102(e)日期1981年7月22日PCT提交1980年11月21日PCT公布。 第WO81 / 01366号公报 日期:1981年5月28日本发明涉及平均粒度为0.5〜50μm的硅酸附聚物,其含有平均粒径为1〜100nm的硅酸一次粒子,作为填料使用 基于烯属不饱和可聚合单体的牙科材料。 该增强填料实际上是无色的,并且可以大量掺入可聚合单体材料中,特别是单官能和二官能以及丙烯酸和甲基丙烯酸的多官能酯,并产生令人满意的可加工的可塑性变形的糊剂。 必要时,将聚集的硅酸与平均粒径为1〜100nm的非凝集微细硅酸一起使用。 可聚合材料固化后获得的成型体具有优异的抗压强度,低热膨胀性,高颜色稳定性和低吸水性,而且可以完成高光泽度。 根据本发明提供的凝聚填料通常适用于牙齿填充制剂和牙齿修复材料以及用于生产人造牙齿。

    Compositions of bishydroxysubstitutedary di acrylates for prosthodontia
    6.
    发明授权
    Compositions of bishydroxysubstitutedary di acrylates for prosthodontia 失效
    双羟基取代二丙烯酸酯用于前列腺症的组合物

    公开(公告)号:US4067853A

    公开(公告)日:1978-01-10

    申请号:US601689

    申请日:1975-08-01

    摘要: Superior artificial teeth, dentures, other dental replacement parts and dental prosthetic articles and devices, which exhibit high abrasion resistance, stability to moisture and which do not undergo volume changes, are obtained by polymerization of a compound of the formula ##STR1## in which R is H or -CH.sub.3, X is an alkylidene or the -SO.sub.2 -group, Y is an oxyalkylene group having between 2 and 5 carbon atoms, or an alkylidene group having between 1 and 5 carbon atoms. In some instances, the polymerization is carried out in the presence of a filler.

    摘要翻译: 通过聚合下式的化合物获得优异的人造牙齿,假牙,其他牙齿替代部件和表现出高耐磨性,水分稳定性和不经历体积变化的牙科修复物品和装置,其中R 是H或-CH 3,X是亚烷基或-SO 2 - 基团,Y是具有2至5个碳原子的氧化烯基团或具有1至5个碳原子的亚烷基基团。 在一些情况下,聚合在填料存在下进行。

    Nonadhesive impression material
    7.
    发明授权
    Nonadhesive impression material 失效
    非粘合印象材料

    公开(公告)号:US4493911A

    公开(公告)日:1985-01-15

    申请号:US559703

    申请日:1983-12-09

    CPC分类号: C08L79/04 A61K6/10 C08K5/20

    摘要: Impression materials based on cross-linked aziridino-polyester compounds which tend to adhere to the surface to be reproduced, are made nonadhesive by the addition of 1-15% by weight of oleic acid ethanolamide with respect to the aziridino-polyether component, and may thereafter be more easily and smoothly released from the object to be reproduced.

    摘要翻译: 通过加入1-15重量%的油酸乙醇酰胺相对于氮丙啶基 - 聚醚组分,易于粘附在待再现表面上的交联氮丙啶 - 聚酯化合物的印模材料制成非粘合剂,并且可以 此后可以更容易地从被再现的对象中顺利地释放出来。

    Light curable acrylic dental composition with calcium fluoride pigment
    10.
    发明授权
    Light curable acrylic dental composition with calcium fluoride pigment 失效
    光固化丙烯酸牙科用氟化钙颜料组合物

    公开(公告)号:US4372836A

    公开(公告)日:1983-02-08

    申请号:US185903

    申请日:1979-07-31

    CPC分类号: A61K6/083

    摘要: An improved opaque, photopolymerizable dental filling material is provided comprised of acrylic acid ester compounds containing mono and/or polyfunctional acrylic or methacrylic ester compounds, photoinitiators, pigments and possibly activators and silicon dioxide or silicate fillers, the improvement comprising the presence of finely divided calcium fluoride as a white pigment in a quantity of from 1-20 percent by weight. The presence of the calcium fluoride enables an opaque effect to be achieved without reducing the permeability of the filling material to polymerization radiation.

    摘要翻译: PCT No.PCT / DE79 / 00001 Sec。 371日期1979年7月31日 102(e)1979年7月31日PCT 2007年1月2日PCT。提供改进的不透明光聚合牙科填充材料,其包含含有单和/或多官能丙烯酸或甲基丙烯酸酯化合物的丙烯酸酯化合物,光引发剂,颜料和 可能的活化剂和二氧化硅或硅酸盐填料,改进包括以1-20重量%的量存在细分散的白色颜料的氟化钙。 氟化钙的存在使得能够实现不透明效果而不降低填充材料对聚合辐射的渗透性。