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AssigneeToray Industries, Inc.
InventorsIchiro Taketa, Yuzo Fujita, Nobuyuki Arai, Narumichi Sato
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An intermediate base material has high handleability and shape conformity to complicated shapes and serves to perform high-yield production, even by low pressure molding, of fiber reinforced plastic material that do not suffer from significant generation of molding defects, such as creases and voids, that can cause a decrease in strength and that has good mechanical characteristics, decreased variations therein, and high dimensional stability. The prepreg includes a layer containing reinforcement fibers impregnated with a resin composition and the impregnation rate with the resin composition in the prepreg is in a predetermined range. It is characterized by being an incised prepreg having a plurality of incisions, being at least partly formed of reinforcement fibers with a predetermined fiber length, and having a reinforcement fiber content by volume Vf in a predetermined range.
1-15. (canceled)
An incised prepreg comprising a layer containing reinforcement fiber impregnated with a resin composition, the incised prepreg having a plurality of incisions, at least partly containing reinforcement fibers with a fiber length (L) of 10 to 300 mm, and having a reinforcement fiber content by volume Vf of 45% to 65%.
Dependencies are inferred from the claim text.