Self-adhesive prepreg and method for producing same

A self-adhesive prepreg comprising:

• a base prepreg including reinforcing fibers, and a thermosetting resin composition (I) that is partially or entirely impregnated into a reinforcing fiber layer that is formed of the reinforcing fibers;
• and
• an adhesive layer including a nonwoven fabric that is laminated on at least one surface of the base prepreg so as to be integrated with the base prepreg, and a thermosetting resin composition (II) layer that is laminated on a surface of the nonwoven fabric so as to be integrated with the nonwoven fabric
• wherein
• the base prepreg contains the thermosetting resin composition (I) by 30 to 50% by mass,
• the thickness of the base prepreg is 60 to 500 μm,
• the content of the thermosetting resin composition (II) is 100 to 300 g/m2,
• the thermosetting resin composition (I) and the thermosetting resin composition (II) are compatible and are mixed at the time of pressure molding,
• the thermosetting resin composition (I) and the thermosetting resin composition (II) has a minimum resin viscosity of 0.1 to 100 Poise,
• the nonwoven fabric is formed of thermoplastic resin,
• the thickness of the nonwoven fabric is 0.15 to 1.0 mm,
• the mass per unit area of the nonwoven fabric is 10 to 50 g/m2, and
• the nonwoven fabric has a 10% extension load of 35 N or less.