Method for producing wood fibre pellets
First Claim
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1. A process for producing pellets or granules comprising fibres of a lignocellulosic material or natural fibres, for use as feedstock in plastics manufacture, which comprises:
- conveying loose or divided fibres or fibre bundles, produced by mechanically or thermomechanically or chemo-thermomechanically or chemo-mechanically breaking down a lignocellulosic material, or natural fibres, in a dry or wet air stream and applying to the fibres while so conveying the fibres a liquid formulation comprising one or more thermoplastic polymer, monomer, or oligomer,forming the fibres into a solid product, andbreaking down the solid product to produce pellets or granules,wherein the pellets or granules comprise between 0.3 to 25 parts of one or more thermoplastic polymers, per 100 parts of fibre by dried weights.
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Abstract
A process for producing pellets or granules comprising fibers of a lignocellulousic material, for use as a feedstock in plastics manufacture, conveying in a dry or wet air stream and applying to the fibers a liquid formulation comprising one or more polymers, monomers, or oligomers, forming the fibers into a solid product, and breaking down the solid product to produce said pellets or granules. Typically the conduit conveys the fibers in a plant for manufacture of fiber board.
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Citations
28 Claims
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1. A process for producing pellets or granules comprising fibres of a lignocellulosic material or natural fibres, for use as feedstock in plastics manufacture, which comprises:
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conveying loose or divided fibres or fibre bundles, produced by mechanically or thermomechanically or chemo-thermomechanically or chemo-mechanically breaking down a lignocellulosic material, or natural fibres, in a dry or wet air stream and applying to the fibres while so conveying the fibres a liquid formulation comprising one or more thermoplastic polymer, monomer, or oligomer, forming the fibres into a solid product, and breaking down the solid product to produce pellets or granules, wherein the pellets or granules comprise between 0.3 to 25 parts of one or more thermoplastic polymers, per 100 parts of fibre by dried weights. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification