Silicone dental impression compositions
US4007153A · kind A · utility
15Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1975 |
| Grant date | Feb 8, 1977 |
| Priority date | — |
| Expiry date | Jun 19, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/54
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Two-part room-temperature vulcanizing silicone dental impression compositions are provided which, before curing, consist essentially of a metallic salt of a monocarboxylic acid as a catalyst and a base compound. In one embodiment the base compound consists of a fluid diorganopolysiloxane, an organosilicon cross-linker and a unique filler combination of an admixture of zinc oxide, calcium carbonate and pumice. In another embodiment, the base compound consists of a fluid diorganopolysiloxane, an organosilicon cross-linker, mineral oil and a low oil absorption calcium carbonate filler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.