BINDING AGENT, METHOD OF ITS PRODUCTION AND PREPREG ON ITS BASIS Russian patent published in 2014 - IPC C08G73/10 C08L79/08 C08J5/24 

FIELD: chemistry.

SUBSTANCE: invention relates to the production of composite materials. The invention includes a binding agent, its application in prepregs, and a method of obtaining the binding agent. The thermosolidified binding agent contains the following components: (A) at least, one bismaleimide in a quantity from 46 to 66 wt %, (B) 4,4'-(propane-2,2-diyl)bis(2-allylphenol) in a quantity from 18 to 40 wt %; (C) at least, one substance, selected from the group, including 4'-(propane-2,2-diyl)bis(allyloxy)benzene) and bis-(4-(allyloxy)phenyl)diphenylmethane in a quantity from 2 to 15 wt %; and (D) at least, one polyimide based on aromatic diamines and dianhydrides of aromatic tetraacids in a quantity from 5 to 25 wt %.

EFFECT: simplification and cheapening the technology of obtaining the binding agent and prepreg on its base, as well as an increase of the temperature of the binding agent vitrification with the provision of satisfactory adhesiveness.

13 cl, 2 tbl, 9 ex