C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 71/02 (2006.01) B05D 1/14 (2006.01) C08G 69/40 (2006.01) C08G 81/00 (2006.01) C08J 5/04 (2006.01) C08L 77/00 (2006.01) D01F 6/60 (2006.01) D01F 6/82 (2006.01) D01F 6/90 (2006.01)
Patent
CA 2462395
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.
La présente invention concerne un article précurseur d'un matériau composite comprenant une matrice polymérique et au moins un fil et/ou fibres de renfort, ledit article comprenant au moins un fil et/ou des fibres de renfort et au moins un fil et/ou des fibres de matrice polymérique caractérisé en ce que: ledit fil et/ou lesdites fibres de renfort sont en matériau de renfort et comprennent éventuellement une partie en polyamide thermoplastique, ledit fil et/ou lesdites fibres de matrice polymérique sont en polyamide thermoplastique, et en ce que, ledit polyamide thermoplastique dudit fil et/ou desdites fibres de renfort et/ou dudit fil et/ou desdites fibres de matrice polymérique comprend au moins un polyamide à structure étoile comportant: des chaînes macromoléculaires étoiles comprenant un ou plusieurs coeurs et au moins trois branches ou trois segments polyamides liés à un coeur, le cas échéant des chaînes macromoléculaires polyamides linéaires.
Myard Philippe
Philippon Frederic
Rhodia Industrial Yarns Ag
Robic
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