THERMOSETTING RESIN CONTAINING EXPOSED THERMOPLASTIC AGENT FOR INCREASING IMPACT STRENGTH Russian patent published in 2012 - IPC C08G59/32 C08G59/40 C08G73/10 C08G75/23 C08J3/28 C08L63/00 C08L63/02 C08L81/06 C08L79/08 

FIELD: chemistry.

SUBSTANCE: invention relates to an uncured polymer composition for use in prepregs; a prepreg containing said composition; a polymer product containing said uncurred polymer composition; a composite product containing said prepreg; a method of producing said composition; a method of producing said prepreg; a method of producing the polymer product and composite product, as well as a method of producing a reinforced thermosetting polymer composition. The uncured polymer composition contains a thermosetting polymer component selected from a group comprising epoxy resins, cyanate ester-based resins and bismaleimide resins; a thermoplastic agent for increasing impact strength which is exposed to gamma rays or an electron beam with a minimum dose of 50 kGy, preferably more than 100 kGy, and selected from a group comprising polyether sulphone, polyether ethersulphone, polyether imide, polyphenyl sulphone and copolymers thereof; and a hardener.

EFFECT: reduced formation of microcracks caused by solvents, arising in polymer materials reinforced by a thermoplastic additive.

16 cl, 3 tbl, 3 ex