Rapid setting cementitious fireproofing compositions and method of spray applying same
US4904503A · kind A · utility
52Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1987 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Sep 29, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/28
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is provided whereby the setting time of a spray applied hydraulic cement-based fireproofing composition is decreased substantially while improving the yield of the composition. An acidic set accelerating agent is thus introduced into the composition effectively after conveyance through the system and in close proximity to the spray nozzle. At least about 0.5% of a basic material is provided which evolves a gas upon reaction with the accelerating agent. The invention also relates to the sprayable fireproofing compositions resulting from operation of the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.