CHEMICALLY RESISTANT POLYMER COMPOSITION FOR COATINGS Russian patent published in 1995 - IPC

FIELD: protection against corrosion. SUBSTANCE: proposed composition contains (mass parts): methylmethacrylate 100, polybutylmethacrylate 10-70, polyisocyanate 10-40, benzoyl peroxide 0.1-10.0, dimethylanilin 0.05-2.00, perchlorvinyl resin 0.5-25.0, divinylbenzene 1.5-10.0, diethanolaminomaleinate 0.01-0.50, amine 0.1-1.0, basalt scale 5-200. Proposed composition is prepared by mixing polybutylmethacrylate and perchlorvinyl resin. Then methylmetacrylate is dissolved by mixing at room temperature. The process is followed by adding amine, diethanolaminomaleinate, divinylbenzene and dimethylanilin. Polyisocyanate and basalt scale are added into thus prepared mixture. Hardening is carried out within 3-4 h at room temperature, total hardening time being 10 days. Adhesive strength thus prepared composition on open air within 10 days is 37.5-41.1 MPa, impact strength being 15.7-16.8 kgf cm. EFFECT: improves quality of composition. 2 tbl