Carbon fiber-reinforced thermoplastic resin composition, molding material, prepreg, and methods for producing same

A carbon fiber-reinforced thermoplastic resin composition comprising the following components (A) and (B), carbon fiber and a thermoplastic resin.

• component (A):
• (A1) a bifunctional or higher functional epoxy compound and/or (A2) an epoxy compound which has a monofunctional or higher epoxy group and has one or more types of functional groups selected from a hydroxyl group, an amide group, an imide group, a urethane group, a urea group, a sulfonyl group and a sulfo group;
• and
• component (B):
• 0.1 to 25 parts by mass, based on 100 parts by mass of the component (A), of at least one reaction accelerator selected from the group consisting of the following compounds [a], [b] and [c]:
• [a] a tertiary amine compound and/or tertiary amine salt having a molecular weight of 100 g/mol or more (B1);
• [b] a quaternary ammonium salt (B2) having a cation site represented by the following general formula (I) or (II):
• wherein R1 to R5 each represent a hydrocarbon group with a carbon number of 1 to 22, a group containing a hydrocarbon with a carbon number of 1 to 22 and an ether structure or a group containing a hydrocarbon with a carbon number of 1 to 22 and an ester structure or a group containing a hydrocarbon with a carbon number of 1 to 22 and a hydroxyl group;
• and R6 and R7 each represent hydrogen, a hydrocarbon group with a carbon number of 1 to 8, a group containing a hydrocarbon with a carbon number of 1 to 8 and an ether structure or a group containing a hydrocarbon with a carbon number of 1 to 8 and an ester structure;
• and
• [c] a quaternary phosphonium salt and/or phosphine compound (B3).