Metal product having improved luster after painting
US4917962A · kind A · utility
2Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1987 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Jul 27, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12993
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A metal product, such as cold rolled steel sheet, has a surface comprising a plurality of flat, smooth facets which are preferably 50 to 100 .mu.m across and which make up at least 30% of the area of the surface. The facets may be formed either by pressing a network of valleys in a flat, smooth surface or by flattening the peaks of a rough surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.