ANTI-CORROSIVE ZINC PRIMER COATING COMPOSITIONS Russian patent published in 2019 - IPC C08L63/00 C08L83/00 C08L75/04 C08L9/00 C08L71/00 C09D5/10 C09D7/40 

FIELD: chemistry.

SUBSTANCE: invention relates to the field of anticorrosive coating compositions intended for the protection of iron and steel structures, as well as to a kit for preparing this composition, to a metal structure coated with the composition, and a method for application thereof. Composition contains a) a binder system selected from epoxy-based binder systems, silicate-based binder systems, polysiloxane-based binder systems, polyurethane-based binder systems, cyclised rubber-based binder systems, and phenoxy resin-based binder systems, b) zinc particles, c) microspheres and d) at least 0.1 wt% of a conductive pigment selected from the group consisting of graphite, carbon black, graphene, aluminium, iron oxide black pigment, antimony-doped tin oxide, mica coated with antimony-doped tin oxide, carbon nanotubes, carbon fibres and any mixture thereof. Said microspheres have a spherical shape and are not hollow glass microspheres.

EFFECT: obtaining improved corrosion resistance of steel-based metal structures, which is cost-effective.

17 cl, 6 tbl, 4 ex