Coated metal sheet, method for producing same, and exterior building material
US10370554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Aug 3, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2103/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This coated metal sheet for exterior covering has a metal sheet and a top coating layer disposed on the metal sheet, the top coating layer is configured from a fluororesin and contains a gloss control agent comprising 0.01-15 vol % of microporous particles and a matte agent comprising primary particles, and the coated metal sheet satisfies the belowmentioned formulae. In the number-based particle size distribution of the gloss control agent and the matte agent, R is the number average particle size (μm) of the gloss control agent, D197.5 and D297.5 represent the 97.5% particle size (μm) of the gloss control agent and the matte agent, Ru is the upper limit particle size (μm) of the gloss control agent, and T is the top coating layer thickness (μm). D197.5/T≤0.9Ru≤1.2TR≥1.00.5≤D297.5/T≤7.03≤T≤40.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.