Thermoplastic resin-coated aluminum alloy plate and method and apparatus for manufacturing the same
US6475597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1999 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Apr 29, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31681
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention aims to offer thermoplastic resin coated aluminum alloy sheet having excellent adhesion after forming, wherein the laminated thermoplastic resin layer will not peel off even when subjected to such severe forming as drawing, followed by stretch-forming, further followed by ironing. In order to achieve this, aluminum alloy sheet is treated with alkali solution by dipping into or spraying alkali solution, rinsed, treated with acid solution by dipping into or spraying acid solution so as to obtain a specific surface condition, and further laminated with thermoplastic resin with or without adhesive on both sides of the aluminum alloy sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.