Impression composition
US4810295A · kind A · utility
1Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1987 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Oct 23, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/90
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides an impression composition of the alginate type which comprises (a) an alginate, (b) calcium sulfate and/or lead silicate, and (c) a filler as its main components and which is characterized in that the alginate component comprises in combination an alginate having a distribution of molecular weights in a lower range and an alginate having a distribution of molecular weights in a higher range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.