Wood-plastic composites utilizing ionomer capstocks and methods of manufacture
US9073295B2 · kind B2 · utility
24Cited by
169References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2009 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Sep 23, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31989
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An extruded composite adapted for use as a building material includes a core having a base polymer and a natural fiber in a substantially homogeneous mixture and an ionomer capstock. To improve adherence of the ionomer to a base polymer, the ionomer can be mixed with a similar or substantially similar base polymer prior to coextrusion with the core. Additionally, various additives may be mixed with the capstock material to improve visual aesthetics of the product and performance of the building material, especially over time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.