Patent ID: 7138345

Claim:
A carbon fiber reinforced substrate comprising a fabric composed of carbon fiber bundles and a first resin adhering to said fabric, wherein said carbon fiber bundles respectively comprise numerous continuous carbon filaments, the tensile modulus of said carbon fiber bundles is 210 GPa or more, and the fracture strain energy of said carbon fiber bundles is 40 MJ/m 3 or more, and wherein a main component of said first resin is a thermoplastic resin, the amount of said first resin adhering to said fabric is in a range from 1 to 20 parts by weight per 100 parts by weight of said fabric, said first resin is adhered relatively more densely on a surface of said fabric than in the inside of said carbon fiber bundles, and said first resin is studded discontinuously on the surface of said fabric, and further wherein air permeability of said carbon fiber reinforced substrate is in a range from 10 to 200 cm3/cm2 ·sec.