Photocatalytic granular mixture for mortar and concrete and its use
US7556683B2 · kind B2 · utility
2Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2007 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Oct 30, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The photocatalytic granular mixture for mortar and concrete includes a photocatalyst in the form of at least two granular classes with different B.E.T. specific surfaces. It has a photocatalytic activity greater than that of a monodisperse photocatalyst with a single range of B.E.T. specific surface, and thus permits, in association with a conventional hydraulic binder, to obtain construction and repair materials whose aptitude for self cleaning, for the reduction of odors, and for the depollution of ambient air, is considerably improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.