Method for the spot repair of scratch-resistant paint films
US9682403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2010 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Nov 24, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D7/57
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A spot repair method of scratch-resistant paint film: (a) sanding a part to be repaired having a scratch-resistant clear paint film thereon, (b) sanding a part to be clear gradation painted outside the part to be repaired with an abrasive material, (c) painting the part to be repaired with a color base-paint, (d) applying a clear paint wet-on-wet without curing the color base-paint, (e) applying a clear paint diluted with a gradation agent to the part to be gradation painted, (f) drying the applied paints, and (g) polishing the dried parts, wherein (1) the clear paint is a two-liquid type having an isocyanate curing agent and (2) the gradation agent comprises from 5 to 50 mass % ethyl ethoxypropionate, from 1 to 5 mass % of an acrylic resin as solid fraction, a surfactant and a curing catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.