A METHOD FOR IMPROVING FRACTURE TOUGHNESS OF POLYISOCYANURATE COMPRISING REACTION PRODUCTS.

摘要

A curable composition for making polyisocyanurate comprising products obtained by combining and mixing at an isocyanate index of at least 100 at least a polyisocyanate composition, a polytetrahydrofuran polyol (P-THF ) having average molecular weight in range 1000-5000 g/mol as toughening agent and diols having an average molecular weight 1000 g/mol.