PREPREG Russian patent published in 2002 - IPC

FIELD: polymers. SUBSTANCE: invention relates to prepreg based on polyamide fibers and epoxide binding agent which is recommended as a thermostable structural material and material with antifriction properties. Prepreg has a product of interaction of epoxy resin (A), benzguanamine (B), ε-caprolactam (C) and phenolformaldehyde novolac (D) as a resinous moiety of binding agent taken in the ratio A : B: C : D from 40 : 10 : 15 : 35 to 81 : 3 : 8 : 8, respectively, that is hardened with aromatic amine. Prepreg has polyamide fiber-containing fabric as a reinforcing filling agent. Combination of components taken in the definite ratio provides high working life of prepreg and high thermal and antifriction properties of prepreg-base material. EFFECT: improved quality and properties. 2 tbl, 7 ex