Method for production of a polyethylene laminated metal sheet
US5234516A · kind A · utility
13Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1992 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Jun 15, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/66
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A polyethylene film is heat bonded to a metal sheet provided with a layer of hydrated chromium oxide, and possibly a layer of metallic chromium under the oxide layer. The laminated metal sheet is then rapidly quenched, and the polyethylene laminate is irradiated with an electron beam, gamma rays, or X-rays. Alternatively, the polyethylene film may be irradiated prior to lamination. The laminated metal sheet exhibits excellent resistance to steam and hot water and does not delaminate during forming operations such as can-making.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.