Color changing paint and varnish remover
US7304021B2 · kind B2 · utility
1Cited by
43References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2005 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Mar 19, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D9/005
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A color change paint and varnish removal formulation is provided. The formulation comprises: at least one penetrant, at least one carrier and at least one colorant whereby the formulation is applied to the target area and as the surface of the formulation dries, the carrier partially dehydrates emitting white light as the colorant migrates away from the dehydrating surface and there is a color change to indicate that the stripping action of the formulation has ceased and is ready for the scraping and removal step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.