COMPOSITE REINFORCEMENTS Russian patent published in 2014 - IPC B32B17/04 C08J5/04 C08L63/00 E04C5/07 

FIELD: process engineering.

SUBSTANCE: invention relates to reinforcements, particularly, to alternate-profile reinforcements for production of articles from concrete and aerated concrete by hot moulding at simultaneous effects of aggressive media. Composite reinforcements comprise bar with winding composed by fibrous filler impregnated with epoxy resin-based polymer binder and hardener. Proposed composition contains the following substances, in wt %: fibrous hardener - 60-80 and binder - 20-40 where binder comprises the following components in wt %: epoxy resin - 50-60, amine hardener - 40-50. Said resin comprises the following components, in wt %: diane epoxy resin - 47-80, modifier based on polyesters including glycidyl groups - 10-25, component produced by epoxidation of hydroxyphenylene oligomer from alkyl resorcinol - 10-28%.

EFFECT: higher resistance to high temperatures, strength, elasticity, resistance against aggressive media and hardening rate.

4 cl, 1 tbl, 3 ex