发明名称 |
DENTAL ALLOYS WITH REDUCED GOLD CONTENT |
摘要 |
<p>Dental alloys having a reduced gold content, particularly for burning on dental porcelains, must be easy to handle, and must not result in discolorations and bubble formation when being burned on. They must have a physiologically acceptable hardness and a low melting interval. Alloys containing 20 to 35% by weight of gold and 45 to 65% by weight of palladium have these properties when they additionally contain: a) 6 to 15% by weight of copper and 0 to 10% by weight of nickel, b) 0 to 12% by weight of indium and 0 to 12% by weight of tin and 0 to 4% by weight of gallium while the sum of the contents of indium added to two and one half times the gallium content must result in a value of between 5 and 15% by weight, c) 0.1 to 1% by weight of iridium and/or rhenium and/or ruthenium and d) selectively also 0 to 1% of aluminium, 0 to 1% of tantalum, 0 to 1% by weight of titanium and/or 0 to 5% by weight of silver.</p> |
申请公布号 |
CA1240178(A) |
申请公布日期 |
1988.08.09 |
申请号 |
CA19850474947 |
申请日期 |
1985.02.22 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT |
发明人 |
ROTHAUT, JOSEF;HAUSSELT, JUERGEN;STEINKE, RUDI;KLAUS, ANGELA |
分类号 |
A61K6/04;C22C5/04;C22C30/00;(IPC1-7):C22C5/00 |
主分类号 |
A61K6/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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