METHOD OF CURING FURAN RESINS Russian patent published in 2020 - IPC C08J3/24 C08L61/02 C08K3/11 C08K3/24 C08K5/09 C04B14/06 C04B26/12 C04B111/27 

FIELD: chemistry.

SUBSTANCE: invention relates to a method for hardening furan resins used as binder in the production of polymer concrete for hydraulic structures, structural materials, fiberglass, casting forms, thin-layer road surfaces, protection of equipment and building structures from aggressive media, anticorrosion materials. Curing of furan resins is carried out in the presence of a hardener containing concentrated sulphuric acid and crude tall oil in weight ratio of 5:1 to 5:15.

EFFECT: improved quality of the finished polymer, specifically compression strength, water absorption, low fire hazard of production, cheapening of the end product.

1 cl, 1 tbl, 16 ex