COMPOSITION FOR PROTECTIVE COATINGS Russian patent published in 1996 - IPC

FIELD: anticorrosive protection of metals. SUBSTANCE: composition has (in weight parts): varnish on the basis of copolymer of styrene rectification residual with maleic anhydride, 100; 50% solution of oligomer of piperylene with divinyl-vinylacetylene fraction in organic solvent, 1-3; floatation regent - side product of the 4,4-dimethyl-1,3- dioxane synthesis stage in isoprene production, 1-2.5; worked out iron oxide catalyst from the stage of oxidative dehydrogenation of butylenes into butadiene with particle size 10-30 mcm, 15-25. Such composition reduces drying time of coating to 1 h and improves its cold endurance to 22 cycles. EFFECT: improved operational characteristics of coating. 2 tbl