Resin-coated metal plate and drawn cans using these plates
US8133542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Jul 30, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention offers resin-coated metal plates and methods of making, in which the resin-coated metal plates prevent wicket scars from occurring during processes of varnish, print and dry, and there are few scars on the resin-coated surface, the inner surface side of the can and that have superior corrosion resistance and workability, and drawn cans using these metal plates. Therefore, resin film that is applied to the metal plates, is comprised of two layers of a crystallized saturated polyester resin layer [A] and a layer composed of resin [B] that is comprised of saturated polyester resin (i) and ionomer resin (ii), wherein the layer composed of resin [B] is laminated on the above-mentioned metal plate to tightly contact with it, and on the polar surface of the saturated polyester resin layer that is crystallized [A] a highly crystallized layer (X) is formed. A drawn can is formed using the resin-coated metal plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.