Polymerization composition containing vinyl benzoic acid or a derivative
thereof and a vinyl compound
    1.
    发明授权
    Polymerization composition containing vinyl benzoic acid or a derivative thereof and a vinyl compound 失效
    含有乙烯基苯甲酸或其衍生物和乙烯基化合物的聚合组合物

    公开(公告)号:US4705836A

    公开(公告)日:1987-11-10

    申请号:US794140

    申请日:1985-11-01

    摘要: Composites comprising(A) general formula (I), compound of ##STR1## [in the formula, R.sub.1 indicates either hydrogen or methyl group and R.sub.2 indicates hydrogen, alkyl radical with carbon number 1-5 to be possibly substituted with halogen, alkyleneoxide group with carbon number 2-4 to be possibly substituted with halogen or --(CH.sub.2 CH.sub.2 O)nH group (n=integral number of 1-4) to be possibly substituted with either halogen or methyl group],(B) vinyl compounds and/or silane compounds, and optionally(C) free radical developing agent and/or light sensitizer have not only an excellent adhesiveness but anti-irritation and anti-harmfulness against tissue, pulp and the like, for teeth and dentin.

    摘要翻译: 包含(A)通式(I)的化合物,(I)化合物[在式中,R 1表示氢或甲基,R 2表示氢,碳数1-5的烷基可被卤素取代 ,碳数为2-4的环氧烷基可以被卤素取代或 - (CH 2 CH 2 O)n H基(n = 1-4的整数),可以被卤素或甲基取代],(B)乙烯基化合物和 /或硅烷化合物,以及任选的(C)自由基显影剂和/或光敏剂不仅对牙齿和牙本质具有优异的粘合性,而且对组织,纸浆等具有优良的抗刺激性和抗毒性。

    Low-carat corrosion-resistant gold alloy with the skin of the alloy not
being blacked upon casting
    3.
    发明授权
    Low-carat corrosion-resistant gold alloy with the skin of the alloy not being blacked upon casting 失效
    低合金耐腐蚀金合金与合金的皮肤在铸造时不被黑化

    公开(公告)号:US4411863A

    公开(公告)日:1983-10-25

    申请号:US391941

    申请日:1982-06-24

    CPC分类号: A61K6/046 C22C30/00 H01H1/023

    摘要: A low-carat corrosion-resistant gold alloy which is not blacked in its skin surface color upon being cast is provided. The alloy is used as cast alloy for reparation of tooth crowns, as general decorative articles, or as contact alloy used in electrical apparatus. The alloy is composed essentially of gold, palladium and silver, with addition thereto of indium in place of copper contained in the conventional alloys, and necessary amounts of zinc or tin as deoxidant. Copper contents have been desired in view of improving the castability and mechanical strength of the alloy but the skin surface of the cast alloy may thereby be blacked to detract from aesthetic effects thus making it necessary to wash off the blacked oxide film by use of strong acid washing agents. The indium added in place of copper affords necessary mechanical properties to the alloy while providing aesthetically desirable silver to gray skin color and making the washing with strong acids unnecessary.

    摘要翻译: 提供了一种低克拉耐腐蚀金合金,其在铸造时不会在其皮肤表面上变黑。 该合金用作用于修复牙冠的铸造合金,作为通用装饰制品,或用作电气设备中的接触合金。 该合金基本上由金,钯和银组成,其中添加了铟代替常规合金中所含的铜,以及必需量的锌或锡作为脱氧剂。 考虑到提高合金的铸造性和机械强度,期望铜含量,但铸造合金的表皮表面可能因此被黑化而损害美观效果,从而需要通过使用强酸来洗去黑色氧化物膜 洗涤剂。 添加了铜的铟为合金提供必要的机械性能,同时提供美观的银色至灰色的皮肤颜色,并且不需要用强酸进行洗涤。