Benzoxazine-system composition, and thermosetting material and varnish thereof

摘要

A heat-curable composition comprises 30-70 mass % of a compound represented by formula (1) and 70-30 mass % of a compound represented by formula (2). In formulae (1) and (2), R1, R2, R3 and R4 are the same as or different from one another, and are independently selected from the group consisting of —H, —CH3, —C(CH3)3 and a group represented by formula (i) for each of compound molecules. In formula (i), Y is selected from the group consisting of —O—, —CH2— and —C(CH3)2—. The heat-curable composition containing the benzoxazine compound has excellent solubility in solvents, heat resistance and flame retardancy, and therefore can be used for providing a cured product of the composition or a varnish.

主权项

1. A thermosetting composition comprising 30% to 70% by mass of a compound represented by Formula (1) and 70% to 30% by mass of a compound represented by Formula (2): wherein in Formulae (1) and (2), R1, R2, R3 and R4 may be the same or different from one another and are each selected independently with respect to each molecule of the compounds from the group consisting of —H, —CH3, —C(CH3)3 and a group represented by Formula (i) below: wherein in Formula (i), Y is selected from the group consisting of —O—, —CH2— and —C(CH3)2—.