COLLOIDAL SOLUTIONS, PROCESSES FOR PRODUCING THE SAME AND USES THEREOF

摘要

A process for producing a colloidal solution of a curable resin which comprises: blending (a) 5 to 90% by weight of a polyfunctional maleimide component and (b) 95 to 10% by weight of at least one thermosetting resin, heating them to form a composition, and blending the resulting composition with at least one low boiling point solvent having a boiling point of more than room temperature and less than 150 DEG C., in which the thermosetting resin is rich soluble, but the maleimide component is poor soluble, thereby forming a colloidal solution of a curable resin is disclosed. The colloidal solution is used as a coating, as an impregnating agent for a coil, or for preparing prepreg.