Process for protecting and consolidating lapideous materials
US5219927A · kind A · utility
5Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1991 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Dec 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/4935
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The surface of lapideous materials, marble, sandstone, tiles, cement conglomerates and articles and structures manufactured therefrom are consolidated and protected against atmospherical and polluting agents by superficially applicating a mix composed of: PA0 a) a vinylidene fluoride elastomeric copolymer comprising 55-85% by mols of vinylidene fluoride, 15-45% by mols of hexafluoropropene and 0-30% by mols of tetrafluoroethylene; PA0 b) polytetrafluoroethylene or a copolymer of tetrafluoroethylene containing up to 12% by mols of other perfluorinated monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.