Separating sheet provided with a plurality of plating layers, excellent in strippability and having a high hardness
US5100739A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1990 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Oct 29, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12944
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A plated metal sheet provided with a plurality of plating layers, excellent in strippability and having a high hardness, which comprises: a nickel alloy plating layer as a lower layer, having a Vickers hardness of at least 500 Hv, formed on at least one surface of a metal sheet; and a composite metal plating layer as an upper layer, in which fluorocarbon polymer particles are uniformly dispersed, formed on the nickel alloy plating layer as the lower layer. A content of the fluorocarbon polymer particles in the composite metal plating layer as the upper layer is within a range of from 1 to 50 vol. % relative to the composite metal plating layer as the upper layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.