CURABLE BENZOXAZINE-BASED COMPOSITIONS, THEIR PREPARATION AND CURED PRODUCTS THEREOF

摘要

The invention relates to a curable composition comprising: at least one benzoxazine and at least one toughening additive which can be bound to the at least one benzoxazine in the curing process, characterized in that the toughening additive is distributed in the cured composition in form of discrete domains, and that at least 50% of the discrete domains related to the total amount of discrete domains having a maximum length in any direction of space in the range of 10 nm to 500 nm as determined by transmission electron microscopy (TEM).