Cement compositions
US4484949A · kind A · utility
9Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1982 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Jun 28, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C12/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A water hardenable cement composition comprising a fluorine-free calcium alumino silicate glass in particulate form in which the individual particulates have a particle size of less than 100 microns consisting essentially of 25-35% silica, 27-35% calcium oxide, 25-40% alumina, up to 4% of an alkali metal oxide, up to 5% of titania, the total amount of alkali metal oxide and titania being 0.5-9%, wherein the ratio of calcium oxide to silica is 0.7:1 to 1:0-7, together with a polycarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.