Fire-retardant agent based on polyphosphoric or orthophosphoric acid impregnated on a highly porous mineral oxide method for preparation and use thereof
US7482400B2 · kind B2 · utility
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1References
14Claims
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Assignee
Inventor
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Aug 6, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a novel fire-retardant agent based on polyphosphoric or orthophosphoric acid impregnated on a highly porous mineral oxide, method for preparation and use thereof for fire-retarding treatment of materials, in particular of polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.