The invention relates to a precursor article of a composite material
comprising a polymer matrix and at least one reinforcing wire and/or
fibres, said article comprising at least one reinforcing wire and/or
fibres and at least one polymer matrix wire and/or fibres. The invention
is characterised in that: said reinforcing wire and/or fibres are made
from a reinforcing material and may comprise a thermoplastic polyamide
part; said polymer matrix wire and/or fibres are made from thermoplastic
polyamide; and the thermoplastic polyamide of said reinforcing wire
and/or fibres and/or said polymer matrix wire and/or fibres comprise at
least one polyamide with a star structure which contains: star
macromolecular chains comprising one or more cores and at least three
branches or three polyamide segments which are linked to the core; if
necessary, linear polyamide macromolecular chains.