Process for protecting and consolidating stone materials
US5212016A · kind A · utility
6Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1991 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Sep 27, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/4935
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Surfaces of stone materials, marble, sandstone, bricks, concrete and articles manufactured therefrom are consolidated and protected from atmospheric agents and pollutants by applying onto said surfaces a mixture consisting of: PA0 (a) 2-40% by weight of polyvinylidene fluoride, or 1-20% by weight of a polyalkylmethacrylate wherein the alkyl group contains from 1 to 4 carbon atoms; PA0 (b) an elastomeric copolymer of vinylidene fluoride, constituting the balance to 100% and being, in moles, 55-85% of vinylidene fluoride, 15-45% of hexafluoropropene and 0-30% of tetrafluoroethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.