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| Number | Title | Issue Date |
| 6190606 | Solid amalgamating compositions for the preparation of dental amalgams, amalgam forming compositions containing them, methods for producing dental amalgams with them and dental amalgams produced thereby The present invention concerns totally solid amalgamating compositions particularly useful in the preparation of dental amalgams for filling cavities and similar dental applications, comprising one or more solid amalgamating alloys, metals and/or intermet... | 02/20/2001 |
| 5662886 | Adhesive amalgam system A modified amalgam composition forming an adhesive bond with tooth structure treated with a dental adhesive. The modified amalgam can be prepared by admixing particulate additives into conventional amalgam alloy powder to form a modified alloy powder and ... | 09/02/1997 |
| 5490870 | Amalgamable composition and method of production A multi-component composition suitable for amalgamation with mercury to form a dental amalgam, an amalgam and a method for producing such a multi-component composition. The multi-component composition has: from 30 to 90% (by weight) of a first component c... | 02/13/1996 |
| 5043139 | Amalgam preform, method of forming the preform and method of bonding therewith The present invention relates to a preform of a solid body of an amalgam. The amalgam is a mixture of a metal which is liquid at room temperature and at least one powdered metal. The preform is formed by mixing together the ingredients of the amalgam and ... | 08/27/1991 |
| 4684347 | Method of preventing the occurrence of corrosion of amalgam filling material for dental purposes, and amalgam filling material therefor The present invention relates to a method of preventing the occurrence of corrosion of amalgam filling material for dental purposes, wherein a protective layer preventing continuous precipitation of metal from the amalgam filling and consisting of metal p... | 08/04/1987 |
| 4664629 | Dental composition mixture By the present invention a dental alloy mixture is provided that is a combination of 20 to 70 percent by weight of cut alloy comprising silver, tin, and copper, with the copper present in an amount of 0 to 30 percent by weight of the cut alloy; and 30 to ... | 05/12/1987 |
| 4528034 | Selenium-containing amalgam alloys for dental restoration and method for the preparation thereof Selenium-containing amalgam alloys for dental restoration comprises 0.1-50% by weight of any one of the following alloy powders (A), (B) and (C) mixed with 50-99.9% by weight of the following amalgam alloy powders (D). (A): Silver alloy powders containing no l... | 07/09/1985 |
| 4453977 | Low silver containing dental amalgam alloys Conventional or non-conventional dental amalgam alloys in the form of lathe-cut, spherical shaped or irregular shaped particles of silver, tin, copper and zinc are improved by adding to the alloys at least one compound selected from Cu6 Sn... | 06/12/1984 |
| 4419107 | Mercury filtering apparatus and method Mercury filter for collecting low concentration mercury vapor in gas. Filter has an absorber having a collecting surface of a material that amalgamates readily with mercury, the surface having a reactive tarnish produced by exposure of the plates to avail... | 12/06/1983 |
| 4385892 | Setting compositions for dental purposes A novel setting composition for dental purposes comprises a dental silver amalgam alloy composed mainly of silver and tin, and including one or more of copper, zinc, indium, palladium and gold; mercury in an amount sufficient to amalgamate said alloy: and... | 05/31/1983 |
| 4374085 | Silver-tin-copper-palladium alloy and amalgam thereof A silver-tin-copper-palladium alloy containing from 30 to 70% silver, 15 to 37% tin, at least 13% copper and from 0.05 to 0.95% palladium; and an amalgam thereof.... | 02/15/1983 |
| 4311526 | γ2 - Free, low cost amalgam alloy powders 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 ... | 01/19/1982 |
| 4255192 | Homogenous bonding of dispersed phase alloy Dispersed phase dental alloy made by mechanically blending mixtures of lathe cut dental amalgam alloy particles and spheroidal silver-copper alloy particles has superior properties as an amalgam when a mechanical blend of the mixture of alloy particles is... | 03/10/1981 |
| 4234339 | Corrosion-resistant dental alloy A corrosion-resistant dental alloy is disclosed which has improved handling characteristics during the filling of a dental cavity. The alloy is a substantially uniform blend of three types of particles having the same chemical components, but differing in... | 11/18/1980 |
| 4164419 | Powdered alloy for dental amalgam 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.... | 08/14/1979 |
| 4080199 | Lathe cut dental alloy powder A new dental alloy powder comprising lathe cut, homogeneous particles having a composition of 35 to 50 percent silver, 20 to 30 percent copper and 25 to 35 percent tin.... | 03/21/1978 |
| 4078921 | Method for eliminating gamma2 phase from dental amalgam and improved dental amalgam composition 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 20% by weight manganese and the balance tin. Various amounts of oth... | 03/14/1978 |
| 4039329 | Dental powder composite and amalgam 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 t... | 08/02/1977 |
| 4018600 | Method for eliminating gamma2 phase from dental amalgam and improved dental amalgam composition 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 oth... | 04/19/1977 |
| 4008073 | Alloy powder for the production of dental amalgam 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.... | 02/15/1977 |
| 3997330 | Dental amalgams 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 amalgam... | 12/14/1976 |
| 3997327 | Dental composition A novel dental composition comprises an admixture of two forms of a powdered alloy in specified proportions, i.e., a major proportion in the form of relatively smooth spheroidal particles, e.g., spheres, and a minor proportion in the form of relatively ro... | 12/14/1976 |
| 3997328 | Dental amalgams Dental compositions comprising an admixture of two powdered alloys which when amalgamated with mercury produce corrosion-resistant dental amalgams.... | 12/14/1976 |
| 3997329 | Dental composition An improved dental composition comprises a uniform admixture in specified proportions of two powdered alloys of specified structure and composition, which when amalgamated with mercury produces a corrosion-resistant dental amalgam having enhanced mechanic... | 12/14/1976 |
| 3985558 | Dental alloy and amalgam A dental amalgam which comprises about 40 to 50 weight percent mercury and about 50 to 60 weight percent of an alloy which comprises 24 to 45 weight percent silver, 28 to 42 weight percent copper and 29 to 34 weight percent tin, and where the atomic perce... | 10/12/1976 |
| 3980472 | Dental amalgam An improved metal powder blend and improved dental amalgams produced therefrom comprising a mechanical mixture containing controlled proportions of an amalgamatable silver-base alloy powder and a substantially non-amalgamatable eutectic alloy powder conta... | 09/14/1976 |
| 3975192 | Dental alloy and amalgam A dental amalgam which comprises about 40 to 50 weight percent mercury and about 50 to 60 weight percent of an alloy which comprises 46 to 53 weight percent silver, 18 to 24 weight percent copper and 29 to 34 weight percent tin, and where the atomic perce... | 08/17/1976 |
| 3954457 | Dental amalgam The addition of copper or copper-base alloys to conventional dental alloys used in amalgams (prior to the formation of the amalgam) has been found to remove tin from its normal matrix phase whereby a more corrosion resistant and clinically improved dental... | 05/04/1976 |
| 3933961 | Tabletting spherical dental amalgam alloy A process is provided for tabletting spherical dental amalgam alloy. The process comprises treating the particles of spherical alloy by contacting them with a hydrochloric acid solution of cupric chloride, separating the acidic cupric chloride solution fr... | 01/20/1976 |
