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Method for producing wood fibre pellets

  • US 9,511,508 B2
  • Filed: 06/23/2005
  • Issued: 12/06/2016
  • Est. Priority Date: 06/23/2004
  • Status: Active Grant
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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