Dental composition containing X-ray opaque material
US4375967A · kind A · utility
32Cited by
11References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1981 |
| Grant date | Mar 8, 1983 |
| Priority date | — |
| Expiry date | Aug 24, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/34
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An improved dental composition which is opaque to X-rays comprising a polymerizable matrix and inorganic filler. The inorganic filler are formed of particles of zeolitic alumino-silicate of at least one metal selected from the group consisting of calcium, strontium, barium, lanthanum, rare earth metal having an atomic number of 58-71, tantalum and hafnium. The invention also provides dental prosthetic appliances found from said dental compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.