Composite
US10604656B2 · kind B2 · utility
0Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2011 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Dec 17, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27N3/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention concerns an extruded composite containing wood fibre material and polymer. The wood fibre material is wood material where the knot or branch content is at least 10 w-%, or bark, or would material into which extract material obtained by extracting knots, branches or bark has been absorbed. The amount of the polymer is 5-25% from the weight of the composite. The composite has high hardness, and reduced moisture absorption and swelling properties. It can be used as constructional material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.