Urea-containing (meth) acrylic acid derivatives of triisocyanates
    21.
    发明授权
    Urea-containing (meth) acrylic acid derivatives of triisocyanates 失效
    三异氰酸酯的含尿素(甲基)丙烯酸衍生物

    公开(公告)号:US5008436A

    公开(公告)日:1991-04-16

    申请号:US517261

    申请日:1990-05-01

    摘要: For filling and forming teeth, novel (meth)acrylic acid derivatives of triisocyanates of the formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and stand for hydrogen or a lower alkyl radical,R.sup.3, R.sup.4 and R.sup.5 are identical or different and denote hydrogen or methyl,Y.sup.1 to Y.sup.3 are identical or different and denote divalent straight-chain or branched hydrocarbon radicals of 2 to 15 carbon atoms which may optionally include 1 to 3 oxygen bridges and which may be unsubstituted or substituted by 1 to 4 additional (meth)acryloyloxy radicals,X.sup.1 to X.sup.3 are identical or different and denote --NR.sup.1 -- or --O--, at least one of the radicals X.sup.1 to X.sup.3 denoting --NR.sup.1 --, and the ringsA and B are identical or different and may be aromatic or saturated.

    摘要翻译: 为了填充和形成牙齿,具有式(I)+ TR图像的三异氰酸酯的新的(甲基)丙烯酸衍生物,其中R 1和R 2相同或不同,代表氢或低级烷基,R 3,R 4 和R5相同或不同,表示氢或甲基,Y1至Y3相同或不同,表示2至15个碳原子的二价直链或支链烃基,其可任选包括1至3个氧桥,并且其可以是未取代的或 被1〜4个(甲基)丙烯酰氧基取代,X1〜X3相同或不同,表示-NR1-或-O-,表示-NR1-的基团X1〜X3中的至少一个,环A和B分别为 相同或不同,可以是芳族或饱和的。

    Swellable bead polymer containing fillers
    23.
    发明授权
    Swellable bead polymer containing fillers 失效
    含有可膨胀珠粒聚合物的填料

    公开(公告)号:US5548001A

    公开(公告)日:1996-08-20

    申请号:US652336

    申请日:1991-02-07

    CPC分类号: A61K6/083 C08F2/44 C08F220/12

    摘要: In the filling of a buccal area tooth, wherein a polymerizable dental material containing a cross-linked bead poller is filled into the tooth and permitted to set, wherein the bead polymer has an average particle diameter of 2 to 100 .mu.m an inorganic filler content of to 50% by weight and a degree of swelling of 50 to 2000%, measured in THF, and is synthesized fromA: 10 to 78% by weight of C.sub.1 -C.sub.2 -alkyl (meth)acrylateB: 5 to 10% by weight of C.sub.3 -C.sub.12 -alkyl (methacrylate)C: 1 to 30% by weight of cross-linkerD: 10 to 75% by weight of an inorganic filler, andE: 0 to 30% by weight of at least one other ethylenically unsaturated monomer.The cross-linked bead polymer is new, has a solid consistency, is storable and is especially useful for filling teeth in the buccal area.

    摘要翻译: 在口腔牙齿的填充中,其中将含有交联珠粒轮的可聚合牙科材料填充到牙齿中并允许固化,其中珠粒聚合物的平均粒径为2至100μm,无机填料含量 在THF中测定为50重量%,50〜2000%的溶胀度,由A:10〜78重量%的(甲基)丙烯酸C 1 -C 2烷基酯B:5〜10重量% C3-C12烷基(甲基丙烯酸酯)C的重量C:1至30重量%的交联剂D:10至75重量%的无机填料,E:0至30重量%的至少一种其它烯属 不饱和单体。 交联的珠粒聚合物是新的,具有坚实的稠度,是可储存的,并且特别适用于在颊部区域填充牙齿。

    Photosetting impression materials
    26.
    发明授权
    Photosetting impression materials 失效
    摄影印花材料

    公开(公告)号:US5179186A

    公开(公告)日:1993-01-12

    申请号:US706128

    申请日:1991-05-28

    CPC分类号: C08G18/673 A61K6/10

    摘要: A method of making a dental impression which comprises applying to the structure of which an impression is to be made a special prepolymer. The prepolymer is composed of units of at least one macrodiol, at least one aliphatic polyisocyanate, and an unsaturated monoalcohol as chain terminator, wherein the average functionality of the prepolymer based on the unsaturated groups is >2.

    摘要翻译: 一种制造牙印的方法,其包括将印模的结构应用于特殊的预聚物。 预聚物由至少一种大分子二醇,至少一种脂肪族多异氰酸酯和不饱和一元醇作为链终止剂的单元组成,其中基于不饱和基团的预聚物的平均官能度> 2。