Patent ID: 8013052

Claim:
A method of producing a curable resin, comprising a step of: allowing at least one compound (a) selected from the group consisting of the silane compounds represented by the following Formula (I-1) and the partial condensates thereof to react with phenol compounds (b): R 1 n SiR 2 (4-n) (I-1) (Wherein, n denotes a number of 0 or 1; R 1 each independently represents a group selected from the group consisting of a hydrogen atom and substituted or unsubstituted hydrocarbon groups having 1 to 18 carbon atoms, and may be identical or different from each other; R 2 each independently represents a group selected from the group consisting of a halogen atom, a hydroxyl group, substituted or unsubstituted oxy groups having 1 to 18 carbon atoms, substituted or unsubstituted amino groups having 1 to 18 carbon atoms, and carbonyloxy groups having 2 to 18 carbon atoms, and may be identical or different from each other; and two or more of R 1 and R 2 may bind to each other to form a cyclic structure); wherein the phenol compounds (b) include a phenol compound cyclizable with the at least one compound (a) in a total amount of 50 wt % or more with respect to the total weight of the phenol compounds, and the cyclizable phenol compound is selected from the group consisting of compounds shown in Formulas (I-1b) and (I-1g) below: (Wherein, R 7 each independently represents a group selected from the group consisting of a hydrogen atom and substituted or unsubstituted organic groups having 1 to 18 carbon atoms and may be identical or different from each other; and two or more R 7 may bind to each other to form a cyclic structure); and (Wherein, R 8 each independently represents a group selected from the group consisting of a hydrogen atom and substituted or unsubstituted organic groups having 1 to 18 carbon atoms and may be identical or different from each other; two or more of R 8 may bind to each other to form a cyclic structure; and R 9 represents a divalent organic group having 1 to 18 carbon atoms; and n is an average number of higher than 1).