COATING LACQUER COMPOSITION Russian patent published in 2003 - IPC

FIELD: varnish-and-paint industry. SUBSTANCE: composition designed for painting wood, metallic, concrete, and other surfaces and comprising pigment fillers, alkyd pentaphthalic resin, organic solvents, and petroleum polymer resin, which is, in particular, copolymer with molecular weight 650-850 and softening temperature 85-100 C containing 51-66% cyclopentadiene units and 24-36% styrene units additionally contains low- molecular cooligomer boiling within temperature range 200 to 370 C at normal pressure, with density 920-990 kg/cu. m, iodine number 15-25 g iodine/100 g, which is obtained in production of above-indicated copolymer resin. All components are taken in specified proportions. EFFECT: increased light and coating ageing resistances, increased rigidity, and improved brightness of film. 2 tbl, 3 ex