Process for producing a fire-resistant, light-weight construction board
US4586958A · kind A · utility
10Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Jan 26, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A fire-resistant and light-weight construction board is prepared by treating fly ash and/or paper sludge incineration ash to a swelling treatment with a mineral acid and shaping and hardening the resultant mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.