COMPOSITION AND SYSTEM FOR ANTICORROSION COATING Russian patent published in 2009 - IPC C09D5/10 C09D163/00 C09D161/28 C09D167/00 C08K3/22 C08K3/36 

FIELD: chemistry.

SUBSTANCE: proposed composition consists of a semi-finished product and a hardener of polyisocyanate biuret No 31. The semi-finished product has the following ratio of components, in wt pts.: 42.0-55.4 epoxy-melamine-polyester lacquer "ЭП-074" with 55.4% content of non-volatile substances, 33.3-40.8 white titanium pigment TiO₂ with rutile structure, 1.4-5.8 synthetic aerosil silica A-175 and 4.0-5.2 talcon MM-20 microtalc as filler, 4.7-19.0 P-189 solvent. The hardener is taken in quantity of 8-13.5 wt.pts per 100 wt pts of semi-finished product. The system of anticorrosion coating comprises a top layer, intermediate layer and a bottom layer. The top and intermediate layers of the system are made from the above mentioned composition. The bottom layer of the system is made from epoxide base coating material "ВГ-33", which contains specularite pigment.

EFFECT: invention increases adhesion to steel at low hardening temperature, impact strength and elasticity, increases the service life of the coating system.

2 cl, 5 tbl, dwg