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AssigneeFPInnovations
InventorsWadood Yasser HAMAD, Shunxing SU, Norman ROBERTS, Otman OULANTI, Michelle Agnes RICARD, Chuanwei MIAO
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A composite and method for producing the composite by incorporating wood or wood pulp fibres with a suitable thermoplastic polymer and coupling agent are described. Homogeneous, void-free transparent/translucent thermoplastic materials in the form of pellets, films or three-dimensional moldable products are produced. The wood pulp fibres can be discrete natural fibres, and flexible assemblies of nano to micro elements, e.g., assemblies of aggregated carbon nanotubes. It is also possible to use our vacuum-assisted co-extrusion process to produce hybrid composites comprising the wood pulp fibre and a further rigid fibre, like glass or carbon fibres, and a flexible fibre or fibrillar network, like cellulose fibres or cellulose filaments. The thermoplastic resin can be, but not limited to, polyolefins, like polypropylene or polyethylene, or polyesters, like polylactic acid, or co-polymers, like acrylonitrile-butadiene-styrene terpolymer.
1-39 (canceled)
A composite comprising:
The composite of claim 39, wherein said composite comprises between 40% wt. % to 63% of wood pulp fibres and/or filamentous material.
The composite of claim 39, wherein the thermoplastic is a polyolefin, a polyester or a co-polymer resin.
The composite of claim 39 further comprising 10 to 20 wt. % glass fibres.
The composite of claim 39, wherein the filamentous material is selected from the group consisting of cellulose filaments and carbon nanofibres.
The composite of claim 39, comprising a Melt Flow Rate of 10 to 22 g/10 min measured at 230° C./2.16 kg according to ASTM D1238.
A method for producing a composite as defined in claim 39 comprising:
Dependencies are inferred from the claim text.