FIELD: polymer materials. SUBSTANCE: invention relates to methods for transfer molding of polymer and molded blanks used in these processes. Adhesiveness-increasing substrate contains (i) fibrous substrate appropriate for use in composite with matrix, (ii) adhesiveness-enhancing substance (0.25 to 15 wt.%) containing at least one epoxy resin, at least one epoxy resin hardener, and catalyst for epoxy resin-hardener reaction, content of the latter ranging from 0 to less than 0.5 wt.%. Hardener employs compound selected from group including polyatomic phenol or phenol resin and carboxylic acid or carboxylic acid anhydride. Catalyst is selected from group including amines or ammonium compounds, phosphines or phosphonium compounds, aliphatic sulphonium and argonium compounds, and heterocyclic nitrogen-containing compounds. One or more adhesiveness-increasing substrates, individually or in the form of molded blank, are placed into mold, into which one or more compositions with polymer matrix are injected, after which composition with polymer matrix hardens. EFFECT: increased long-storage stability of substrates. 6 cl
