Synthetic wood meal
US9505932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2012 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Jan 21, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A synthetic wood meal for a pellet that enables to manufacture a molded product with no deformation such as warping and distortion or, if any, deformation that can be alleviated to a practically non-problematic level and also features high mechanical strength. The synthetic wood meal comprises 30 wt % to less than 45 wt % of a thermoplastic resin including polypropylene or a mixed material of polypropylene and polyethylene; 50 wt % to 35 wt % of a wood meal having a bulk density of 0.15 to 0.21 g/ cm3 and a mean fiber length of 101 to 189 μm in which 19 to 29% or less of the wood meal having a shortest fiber length of 60 μm or less, and 9 to 20% or less of the wood meal having a shortest fiber length of 30 μm or less; and an additive including a reinforcing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.