http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1151446-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1344c5c0f7a3b561aa76dfefb893f85f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K6-84 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C19-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61C13-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K6-04 |
| filingDate | 1979-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1983-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91854ec40fb8403b797f0ec41cb40e6e |
| publicationDate | 1983-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1151446-A |
| titleOfInvention | Dental constructions and dental alloys |
| abstract | ABSTRACT OF THE DISCLOSURE The instant invention relates to dental constructions such as bridges, crowns and the like which utilize a novel dental alloy as a metal core and porcelain or other tooth simulating material bonded thereto. The instant dental alloys are composed primarily of nickel, and chromium and contain on a weight percent basis, about 65 to 80% nickel, about 12.0 to 20.0% chromium, and in addition, about 3.5 to 5.0% silicon, about 3.0 to 6.0% molybdenum, and about 0.2 to 0.6% boron. More preferably the alloys consist essentially of 71 to 74.3% nickel, 17.5 to 19.5% chromium, 3.9 to 4.5% silicon, about 3.9 to 4.5% molybdenum and 0.3 to 0.5% boron. The alloys have excellent physical properties for dental applications having a fusion temperature with the range of about 2300 to 2450°F, a coefficient of expansion of from about 13.6 x 10-6 in/in/°C to about 14.5 x 10-6 in/in/°C, good corrosion resistance when compared with similarly cast gold or other commercial non-precious metal alloys and good oxidation resistance. They also have as cast, a tensile strength of at least 80,000 p.s.i., an elongation of about 2.0 to 5.0%, a Rockwell B hardness within the range of about 90 to 100, and good bonding to porcelain. |
| priorityDate | 1978-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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