Curable composition comprising a calcium fluoro-alumino silicate glass and poly(carboxylic acid) or precursor thereof
US4123416A · kind A · utility
19Cited by
3References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1976 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | May 11, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S528/92
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A novel calcium fluoroaluminosilicate glass consisting essentially of from 25 to 35% by weight of silicon calculated as silica, from 30 to 40% by weight of aluminum calculated as alumina, from 20 to 35% by weight calcium, calculated as calcium oxide, and up to 9% by weight fluorine (preferably 4-7%) can be associated with a poly(carboxylic acid) e.g. as an intimate mixture of glass and acid to constitute a composition curable on contact with water and useful, for example, as a loading on a splinting bandage. Such a bandage preferably has a ratio of set time to gel time from 4:1 to 8:1 with a minimum gel time of 60 seconds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.