METHOD OF PRODUCING ANTICORROSIVE COATING AND COMPOSITION FOR REALISING SAID METHOD Russian patent published in 2013 - IPC C09D5/08 C09D109/06 C09D109/00 

FIELD: chemistry.

SUBSTANCE: method of producing anticorrosive coating involves preparing the surface of structures of different types to be protected, removing dust from the surface to be protected using compressed air or an industrial vacuum cleaner, defatting the surface with a solvent or alkaline detergent, applying a rubber mixture, a rubber adhesive and a modifying component with a curing agent, which are used in form of a rubber-polymer compound with pre-dissolution thereof in a solvent. The rubber mixture used is a low-hardness rubber mixture GX-2566 which is based on synthetic cis-isoprene rubber SKI-3 gr.1 and synthetic butadiene methyl styrene rubber SKMS-30-ARKM-15 and/or medium-hardness rubber GX-1976 based on synthetic butadiene methyl styrene rubber SKMS-30-ARKM-15, and high-hardness rubber GX-1751 based on synthetic butadiene methyl styrene rubber SKMS-30-ARKM-15 or GX-1627 based on synthetic cis-isoprene rubber SKI-3 gr.1 and synthetic butadiene methyl styrene rubber SKMS-50P, meant for making semi-hard rubber or hard-rubber articles, respectively. The rubber adhesive used is rubber adhesive 2572, which is a solution of a rubber mixture based on synthetic cis-isoprene rubber SKI-3 gr.1 and/or synthetic butadiene methyl styrene rubber SKMS-50P with sulphur, lead oxide and iron oxide additives. The modifying component used is a polymer compound for producing protective coatings at temperature of 20-35°C, which is polyurethane based on organic polyisocyanate, epoxide based on epoxy resin ED-20, polysiloxane based on an inorganic compound of silicon and oxygen; the solvent is nefras S2-80/120. The compound is applied in layers, each having thickness ranging from 0.03 mm to 0.13 mm. The first layers of the compound, which act as the prime coat, are applied with additional dilution of the compound in ratio of up to 6:1. After applying on the surface of the article, the compound is cured in ambient conditions at temperature of 20-35°C or is treated with hot air at temperature of 45-60°C, or with steam at temperature of 97.5-100.5°C at atmospheric pressure.

EFFECT: high adhesion and quality of the coating, high reliability and longevity thereof, simple technique and easier application of the coating, and application of the coating in ambient conditions.

2 cl, 2 dwg, 2 ex