Surface-treated steel plate and bonded structure of metal material
US4916031A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Nov 8, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31761
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A very thin coating layer having a thickness of the order of 1-100 angstroms of a hydroxymethyl substituted phenol is applied to the surface of a metal material. The hydroxylmethyl substituted phenol, such as saligenin, is applied in the gaseous phase to the surface of the metal material maintained at a high temperature. By forming this ultra-thin coating layer, the heat bondability of a thermoplastic resin layer to the metal material can be effectively improved. This technique is advantageously used in various fields, for example, for production of bonded cans. The metal material comprises a steel plate substrate and a chromium-containing layer on the surface of the substrate, and the very thin layer is applied on the chromium-containing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.