Method and equipment for production of laminated metal sheet
US6080260A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1998 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Apr 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1741
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
When producing a laminated metal sheet, the air bubbles taken in when laminating can be lessened so that a laminated metal sheet with low rate of air bubbles can be obtained. For this purpose, in a production method of a laminated metal sheet comprising the steps of laminating of plastic film 2 on at least one side of a metal sheet strip 1, the plastic film is heated to a temperature of between the glass transition temperature of the plastic film and a temperature at which the thermal shrinkage of the film attains 3% when the plastic film is kept for 30 minutes at a constant temperature, and just after the heating, the plastic film is brought into pressure contact with the metal sheet, by which laminated metal sheet in which air bubbles are hard to be taken in when laminating, and the rate of air bubbles is low can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.