Bark encased plastic sheeting
US5863623A · kind A · utility
0Cited by
26References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1996 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Apr 19, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2025
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A plastic sheet is extruded and a layer of redwood, cedar or other bark which has been finely separated is hot rolled into the two faces. The bark is decorative and also protects the sheets from ultraviolet light destruction. The sheets can then be hot worked into corrugated, design-embossed sheets and into many tubular or other hollow or open-sided shapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.