MALAIMIDE RESINS Russian patent published in 2018 - IPC C08L79/08 C08L81/06 C08K5/42 

FIELD: chemistry.

SUBSTANCE: curable polymer composition contains the following components: (A) a component, which is a precursor of thermosetting bismaleimide resin obtained by the reaction of maleic anhydride and a diamine selected from toluene-diamines, methylenedianilines, 1,3 - and 1,4-phenylendiamines, diaminodiphenylsulphones, diaminodiphenylmethanes, diaminodiphenyloxides, diaminodiphenylsulfones, and C_2-20 alkylenediamines; (B) arylsulfonyl-containing bismaleimide component, and (C) polyaryl-sulfonic thermoplastic agent that increases resistance to destruction, which does not contain maleimide side and/or end groups. The components of the composition are present in such an amount that, as a result of the curing, the cured resin has a homogeneous morphology. The composite material comprises the above polymer composition and reinforcing fibres in a concentration of 30 to 70 wt %.

EFFECT: invention makes it possible to increase the resistance to degradation of polymer compositions.

16 cl, 7 dwg, 3 tbl, 4 ex