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AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsGoro Furumoto, Takashi Fujiwara, Tsuneo Igarashi
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The present invention relates to a novel composite material, that is, a prepreg, obtained by bonding a film (1) comprised of an organic polymer having substantially no melting point and having a high modulus of 700 kg/mm.sup.3 or more and a high strength of 35 kg/mm.sup.2 or more and a resin layer (2) and/or fiber-reinforced layer (3), a composite molded body, and a method of manufacturing a composite molded body. The composite molded body obtained by bonding the film (1) and the resin layer (2) of the present invention has superior strength, excellent pliability, and large toughness in all directions. Further, the composite molded body obtained by bonding the film (1) and the fiber-reinforced resin layer (3) has both an extremely large impact resistance which could never be obtained with conventional molded bodies and also a strength and modulus greater than in the past. The molded body can be suitably used for aerospace equipment, sports goods, leisure goods, etc. making use of its light weight, corrosion resistance, and other properties in addition to the above superior proportion.
A prepreg comprising at least one layer of a film comprising an organic polymer having substantially no melting point and having a tensile modulus of 700 kg/mm.sup.2 or more and a tensile strength of 35 kg/mm.sup.2 or more and at least one layer of a resin, said film and said resin layer being bonded to each other.
A prepreg comprising at least one layer of a film comprising an organic polymer having substantially no melting point and having a tensile module of 700 kg/mm.sup.2 or more and a tensile strength of 35 kg/mm.sup.2 or more and at least one layer of a fiber-reinforced resin layer, said film and said fiber-reinforced resin layer being bonded to each other.
A plate molded body comprising at least one layer of a film and at least one layer of a resin and/or a fiber-reinforced resin layer, wherein said film comprises an organic polymer having substantially no melting point and has a tensile module of 700 kg/mm.sup.2 or more and a tensile strength of 35 kg/mm.sup.2 or more, said film, said resin layer, or said fiber-reinforced resin being bonded to each other.
Dependencies are inferred from the claim text.