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AssigneesJx Nippon Oil & Energy Corporation, Subaru Corporation
InventorsYoshihiro Fukuda, Takayuki Matsumoto, Masaki Minami, Naoyuki Sekine, Masanori Nakajima
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A fiber-reinforced composite material is provided which is capable of achieving CAI, ILSS, and interlaminar fracture toughness concurrently at high levels, in particular, capable of achieving high CAI. The composite material is composed of a laminated body including a plurality of reinforcing-fiber-containing layers and a resin layer in each interlaminar region between adjacent reinforcing-fiber-containing layers, wherein the resin layer is a layer wherein a cured product of a compound having in its molecule a benzoxazine ring of formula (1) and epoxy resin is impregnated with at least polyamide 12 powder: (R1: C1-C12 chain alkyl group or the like; H is bonded to at least one of the carbon atoms of the aromatic ring at ortho- or para-position with respect to C to which the oxygen atom is bonded).
A fiber-reinforced composite material composed of a laminated body comprising a plurality of reinforcing-fiber-containing layers and a resin layer in each interlaminar region between adjacent reinforcing-fiber-containing layers, wherein said resin layer is a layer wherein a cured product of a compound (A) having in its molecule a benzoxazine ring of Formula (1) and epoxy resin (B) is impregnated with at least polyamide 12 powder:
Dependencies are inferred from the claim text.