Polymer-coated metal surfaces
US6235361A · kind A · utility
12Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1996 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Oct 28, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31529
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a metal surface coated with a thermoplastic polymer, the coating exhibiting a peel strength at 130.degree. C. (according to DIN 30 670) which is higher than 400 N/5 cm. This value can be obtained by placing between the metal and the thermoplastic a layer of epoxy resin of Tg higher than 120.degree. C. against the metal and then a layer of polypropylene-based binder. The invention is particularly useful for coating the external surface of pipes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.