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公开(公告)号：US4524824A
公开(公告)日：1985-06-25
申请号：US484517
申请日：1983-04-13
申请人： Hirokata Shimokobe , Sueo Saito , Kentaro Tomioka , Shoji Akahane , Kazuo Hirota
发明人： Hirokata Shimokobe , Sueo Saito , Kentaro Tomioka , Shoji Akahane , Kazuo Hirota
CPC分类号： A61K6/0835
摘要： A dental cement comprising a cement powder to which are added one or more of tannic acid derivatives consisting of the group of a tannic acid-protein combination, a tannic acid-formaldehyde combination, acetyl tannate and a metal salt of tannic acid, said tannic acid derivatives being sparingly soluble in water.
摘要翻译： 一种含有水泥粉末的牙科水泥，其中加入一种或多种由单宁酸 - 蛋白质组合，单宁酸 - 甲醛组合，鞣酸乙酰基鞣酸盐和鞣酸酸金属盐组成的单宁酸衍生物，所述单宁酸 衍生物微溶于水。
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82.发明授权
公开(公告)号：US4479823A
公开(公告)日：1984-10-30
申请号：US545208
申请日：1983-10-25
申请人： Wolfgang Hohmann
发明人： Wolfgang Hohmann
CPC分类号： A61K6/05 , B22F1/0096 , C22C1/0466 , Y10S75/955
摘要： A silver-tin-copper master alloy powder useful as a dental filling when amalgamated with mercury and having improved properties for that utility can be obtained by the steps of:(a) pulverizing an alloy containing silver, tin and copper into a first spherical powder by high pressure water, inert gas or similar pulverization(b) drying and forming said first powder into a coherent shaped article;(c) sintering the shaped article at an elevated temperature; and(d) pulverizing the sintered shaped article by machining into a master alloy powder.
摘要翻译： 可以通过以下步骤获得用于与汞并合并具有改善的用途的性能的用作牙科填充物的银 - 锡 - 铜母合金粉末：（a）将含有银，锡和铜的合金粉碎成第一球形粉末 通过高压水，惰性气体或类似的粉碎（b）将所述第一粉末干燥并形成粘合成型制品; （c）在升高的温度下烧结成型制品; 和（d）通过机加工成烧结成型制品成为母合金粉末。
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公开(公告)号：US4311526A
公开(公告)日：1982-01-19
申请号：US175378
申请日：1980-08-05
申请人： Pei Sung
发明人： Pei Sung
摘要： A new low silver dental alloy powder combinations consists(1) 75% to 95% by weight metal alloy particles with a composition of 45% to 60% silver, 26% to 33% tin and balanced with pure copper.(2) 5% to 25% by weight silver-copper or silver-copper-indium alloy powders.The said combination mixed with equal amounts of mercury, the corrosive phase (.gamma..sub.2) has been eliminated.
摘要翻译： 一种新的低银牙合金粉末组合包括（1）75％至95％重量的组成为45％至60％的银，26％至33％的锡并与纯铜平衡的金属合金颗粒。
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84.发明授权
公开(公告)号：US4235631A
公开(公告)日：1980-11-25
申请号：US936667
申请日：1978-08-24
CPC分类号： B22F1/0003 , A61K6/05 , C22C1/0466 , Y10S75/955
摘要： A corrosion-resistant dental alloy shows improved handling characteristics during the filling of a dental cavity with an amalgam of the alloy. The alloy particles comprise a mixture of silver, tin and copper particles having a mean particle size of between about 20 and 26.5 microns, and further having a particle size distribution such that substantially all of the particles fall within a particle size range of from about 10 to 52 microns. The particles have a surface area ranging between about 0.22 m.sup.2 /gm and 0.31 m.sup.2 /gm. The alloy, after amalgamation with mercury, retains a corrosion resistance comparable to that of spherical particles having substantially the same composition and having a surface area of about 0.21 m.sup.2 /gm, while retaining handling characteristics comparable to those of flake-like particles also having substantially the same composition and having a surface area of at least about 0.33 m.sup.2 /gm. The copper and silver content of the particles may be higher at their surface than in the interior thereof.
摘要翻译： 耐腐蚀牙科合金在用合金汞齐填充牙腔时表现出改进的处理特性。 合金颗粒包含平均粒径为约20至26.5微米的银，锡和铜颗粒的混合物，并且还具有使得基本上所有的颗粒基本上都落入大约10的粒度范围内的粒度分布 至52微米。 颗粒的表面积在约0.22m 2 / g至0.31m 2 / gm之间。 该合金在与汞合并后保持与具有基本上相同的组成并具有约0.21m 2 / gm的表面积的球形颗粒的耐腐蚀性，同时保持与具有基本相同的片状颗粒的处理特性 相同的组成并且具有至少约0.33m 2 / gm的表面积。 颗粒的铜和银含量在其表面可能比其内部更高。
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公开(公告)号：US4164419A
公开(公告)日：1979-08-14
申请号：US890307
申请日：1978-03-27
申请人： Hiroyuki Kaji , Narishige Suzuki
发明人： Hiroyuki Kaji , Narishige Suzuki
CPC分类号： C22C30/04 , A61K6/05 , C22C30/02 , C22C5/06 , Y10S75/955
摘要： A dental alloy capable of combination with mercury to form a dental amalgam comprising by weight 20% and above silver, 20 to 50% tin, 9.5 to 50% copper, and 0.5% and above indium.
摘要翻译： 能够与汞组合以形成牙科汞齐的牙科合金，其包含20重量％以上的银，20〜50重量％的锡，9.5〜50重量％的铜和0.5重量％以上的铟。
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公开(公告)号：US4077560A
公开(公告)日：1978-03-07
申请号：US675654
申请日：1976-04-12
申请人： Pei Sung , James Lee-You
发明人： Pei Sung , James Lee-You
CPC分类号： C22C19/058 , A61K6/04 , B23K35/304
摘要： The invention relates to dental solder particularly suitable for joining parts of structural frameworks made of non-precious metal alloys, the framework being used in the preparation of bridges, crowns and the like. The solder compositions consist essentially of about 69 to 75% nickel, about 14 to 19.9% chromium, about 4 to 5.5% silicon and about 2.5 to 6% boron. The compositions may be modified to include up to about 6% molybdenum to increase corrosion resistance. The solder has a fusion temperature in the range of from about 1800.degree. to about 1950.degree. F and a diametrial tensile strength of at least 35,000 p.s.i. and a solder joint tensile strength of at least 70,000 p.s.i.
摘要翻译： 本发明涉及特别适用于连接由非贵重金属合金制成的结构框架的部分的牙科焊料，该框架用于制备桥梁，牙冠等。 焊料组合物基本上由约69至75％的镍，约14至19.9％的铬，约4至5.5％的硅和约2.5至6％的硼组成。 组合物可以被修饰以包括高达约6％的钼以提高耐腐蚀性。 焊料的熔化温度范围为约1800°F至约1950°F，直径抗拉强度至少为35,000 p.s.i。 焊点抗拉强度至少为70,000 p.s.i。
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公开(公告)号：US4039329A
公开(公告)日：1977-08-02
申请号：US586822
申请日：1975-06-13
申请人： William V. Youdelis
发明人： William V. Youdelis
摘要： A dental powder composite adapted to be combined with mercury to form dental amalgam is disclosed which comprises amalgamatable silver-tin alloy in powder form and unalloyed indium powder. Amalgamation of this composite may be achieved with less mercury than used with prior composites and results in an amalgam having improved mechanical properties.
摘要翻译： 公开了一种适于与汞结合形成牙科汞合金的牙科粉末复合物，其包括粉末形式的合并银 - 锡合金和非合金铟粉末。 该复合材料的合并可以用比现有复合材料使用的汞更少的汞来实现，并且导致具有改进的机械性能的汞齐。
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88.发明授权Method for eliminating gamma.sub.2 phase from dental amalgam and improved dental amalgam composition 失效消除伽马{hd 2 {b相从牙科汞合金和改进的牙科汞齐组合物的方法
公开(公告)号：US4018600A
公开(公告)日：1977-04-19
申请号：US617594
申请日：1975-09-29
摘要： An improved alloy for a dental amalgam includes silver and tin and the additional element, manganese. The alloy is comprised of a minimum of about 60% by weight silver, a maximum of about 15% by weight manganese and the balance tin. Various amounts of other constituents known to those in the art such as gold, copper, zinc and mercury may be included.
摘要翻译： 用于牙科汞合金的改进的合金包括银和锡以及附加元素锰。 该合金由至少约60重量％的银，最多约15重量％的锰和余量的锡组成。 可以包括本领域已知的各种量的其它成分，例如金，铜，锌和汞。
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公开(公告)号：US4008073A
公开(公告)日：1977-02-15
申请号：US632953
申请日：1975-11-18
申请人： Rudolf Kropp
发明人： Rudolf Kropp
摘要： Alloy powders suitable for the production of dental amalgams are prepared containing 75-92% silver, 8-23% copper, 1-10% tin and 0-2% zinc.
摘要翻译： 制备适合于生产牙科汞合金的合金粉末，其含有75-92％的银，8-23％的铜，1-10％的锡和0-2％的锌。
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公开(公告)号：US3997330A
公开(公告)日：1976-12-14
申请号：US644871
申请日：1975-12-29
申请人： Joseph Aliotta , Louis F. Alcuri
发明人： Joseph Aliotta , Louis F. Alcuri
CPC分类号： A61K6/05 , C22C5/06 , Y10S75/955
摘要： An improved dental composition comprises an admixture in specified proportions of two powdered alloys of specified composition, one in the form of spheres, the other in the form of irregularly-shaped particles such as flakes. When the admixture is amalgamated with mercury, a corrosion-resistant dental amalgam having enhanced mechanical properties and handling characteristics is produced.
摘要翻译： 改进的牙科组合物包含特定比例的两种具有特定组成的粉末合金的混合物，一种以球形的形式，另一种为不规则形状的颗粒（例如片状）的形式。 当混合物与汞合并时，产生具有增强的机械性能和处理特性的耐腐蚀牙科汞齐。
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