Method and composition for removing coatings which contain hazardous elements
US6969303B1 · kind B1 · utility
2Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2000 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Apr 18, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for removing a coating on a surface by applying a treatment composition layer to the coating to be removed. The treatment composition layer is made up of (Is) a first material selected from the compounds of sodium and potassium silicates, sodium and potassium phosphate, calcium silicate, iron and aluminum sulfates. An abrasive is injected against the coating to be removed so that the treatment composition layer and coat to be removed are removed and any hazardous material in the layer to be removed is contained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.