Plaster-based material including an agent capable of trapping formaldehyde
US8500903B2 · kind B2 · utility
1Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 2010 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Apr 30, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/0062
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a plaster-based material which includes an agent capable of trapping formaldehyde, in particular a plasterboard intended for the interior fittings of residential buildings.The agent capable of trapping formaldehyde is chosen from ethylene urea and its derivatives, compounds comprising active methylene(s), sulphites, tannins and their mixtures.Another subject-matter of the invention is the use of the said material for reducing the amount of formaldehyde present in the atmosphere inside residential buildings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.