Pre-impregnated composite materials with improved performance

Details Pre-impregnated composite materials with improved performance Pre-impregnated composite materials with improved performance

C - Chemistry, Metallurgy

08

G

C08G 59/38 (2006.01) C08J 5/04 (2006.01) C08J 5/24 (2006.01) C08L 63/00 (2006.01)

Patent

CA 2682943

Pre- impregnated composite material (prepreg) is provided that can be molded to form composite parts that have high levels of both strength and damage tolerance without causing any substantial negative impact upon the physical or chemical characteristics of the uncured prepreg or cured part. This is achieved by including in the matrix resin a substantial amount of a multifunctional aromatic epoxy resin that has at least one phenyl group that is meta-substituted.

L'invention concerne un matériau composite pré-imprégné (prepreg) susceptible d'être moulé afin de former des pièces composites qui présentent des niveaux élevés de résistance et de tolérance aux dommages, sans avoir d'impact négatif sur les caractéristiques physiques ou chimiques du prepreg non durci ou de la pièce durcie. On arrive à ceci en incluant dans la résine matricielle une quantité substantielle d'une résine époxy aromatique multifonctionnelle qui possède au moins un groupe phényle substitué en méta.

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