Patent ID: 11912859
Assignee: TORAY INDUSTRIES, INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. An epoxy resin composition comprising:
a component [A] being a trifunctional amine type epoxy resin;
a component [D] including a component [D]-2, the component [D]-2 being an isocyanuric acid type epoxy resin;
a component [E] being a sorbitol type epoxy resin; and
a component [F] being dicyandiamide or a derivative of dicyandiamide,
wherein all of a condition 8, a condition 9, and a condition 10 described below are satisfied,
the condition 8 being that a resin cured product produced by reacting the epoxy resin composition at 130° C. for 90 minutes has a flexural modulus of 4.3 GPa or more,
the condition 9 being that the resin cured product produced by reacting the epoxy resin composition at 130° C. for 90 minutes has a bending strength of 190 MPa or more,
the condition 10 being that the epoxy resin composition includes the component [A] and the component [E] at a total content of 40 parts by mass or more based on 100 parts by mass of all epoxy resins in the epoxy resin composition, and
the component [E] is included at a content of 25 to 40 parts by mass based on 100 parts by mass of all the epoxy resins.