Thermoplastic foil arrangement having a foamed cover layer
US8613994B2 · kind B2 · utility
1Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2009 |
| Grant date | Dec 24, 2013 |
| Priority date | — |
| Expiry date | Aug 16, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249981
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A thermoplastic foil has an embossed three-dimensionally structured surface (2) in the external cover layer. The cover layer is configured as a foamed layer and has a foam density that varies across the layer thickness thereof and increases toward the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.