Dental cavity filling composite material
US4579880A · kind A · utility
12Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1984 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Apr 24, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/76
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dental filling composite material is disclosed, which contains 10-99% by weight of phosphazene of the formula: ##STR1## in which at least one of R.sub.1 and R.sub.2 represent radicals having not less than 3 carbon atoms and being polymerizable. The filling composite material is low in polymerization shrinkage, thermal expansion coefficient and water absorption and may be quickly polymerized and cured to form a polymer of high compressive strength, flexural strength and hardness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.