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°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.
一种生产可固化
树脂胶体溶液的工艺,包括
混合(a)5-90%(按重量计)的多官能度马来
酰亚胺组分和(b)95-10%(按重量计)的至少一种热固性
树脂、
加热它们以形成一种组合物,以及
将所得组合物与至少一种沸点高于室温但低于 150°C 的低沸点溶剂混合,其中热固性
树脂的溶解度高,而马来
酰亚胺组分的溶解度低,从而形成可固化
树脂的胶体溶液。该胶体溶液可用作涂层、卷材浸渍剂或制备预浸料。