METHOD OF PRODUCING BINDER FOR PREPREG (VERSIONS), BINDER FOR PREPREG (VERSIONS), PREGREG AND ARTICLE

摘要

FIELD: chemistry. ^ SUBSTANCE: binder is obtained through the following steps. High-molecular epoxy resin is dissolved in a true solution of solid epoxy resin with solubility parametre in a ketone solvent not less than 23 MPa1/2. Phosphorus-containing epoxy resin is dissolved in the ketone solvent. The obtained solution of the phosphorus-containing epoxy resin is added to a mixture prepared from at least one liquid epoxy resin based on bis-phenol A. A latent hardener and an accelerator are added to said mixture. The solution of high-molecular epoxy resin is mixed with a mixture prepared from at least one liquid epoxy resin, the phosphorus epoxy resin, hardener and accelerator. ^ EFFECT: invention enables to obtain binder with improved adhesion-cohesion characteristics and a prepreg with high combustion resistance. ^ 39 cl, 3 tbl, 4 ex