IMPROVED COMPOSITION OF PHENOL-FURAN RESIN WITH LOW INFLAMMABILITY, COMPOSITE MATERIAL PRE-IMPREGNATED AND REINFORCED WITH FIBBER, AND USE THEREOF Russian patent published in 2020 - IPC C08L71/10 C08L71/14 C08L75/02 C08K3/16 C08J5/24 B29B15/10 B29C63/26 

FIELD: chemistry.

SUBSTANCE: present invention relates to an improved resin composition based on phenol-furan resin with low inflammability and to a pre-impregnated fibre-reinforced composite material. Use of additives and fillers, such as glass fibre, glass beads, boron compounds, in concentrations of not more than 1 wt. % as flame-retardant additives, as well as sodium metasilicate pentahydrate and melamine derivatives in the resin composition significantly increases the flame-salting effect.

EFFECT: invention is intended for production of composite material with improved heat resistance, which means, at low flammability, not only prevention of propagation of possible fire, but also non-damage and maintenance of mechanical properties at high temperatures.

7 cl, 14 ex