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Biodegradable composites

  • US 20040054372A1
  • Filed: 07/24/2003
  • Published: 03/18/2004
  • Est. Priority Date: 08/19/1997
  • Status: Abandoned Application
First Claim
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1. A biodegradable fibre-reinforced shaped composite suitable for use as a medical implant which is obtainable by a resin, (co)monomer and/or oligomer reaction injection transfer molding process comprising:

  • providing a shaped fibre preform comprising a presentation of reinforcing fibres in a regular, irregular or profiled fibre distribution in a tool or mould;

    injecting into said preform in said tool or mould a composition comprising (co)monomers and/or oligomers and/or resin of a biodegradable thermoplastic polymer matrix in such a manner as to retain said distribution, orientation and/or fraction, of fibres and composite shape; and

    (part) polymerising the composition in the mould or tool wherein the composite comprises long fibres (which are up to 102 times greater in length than diameter) or long continuous fibres (which are 102-104 times greater in length than diameter).

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