NITROCELLULOSE POLYURETHANE VARNISHED COMPOSITION Russian patent published in 1994 - IPC

FIELD: compositions for protective-decorative coating. SUBSTANCE: composition has, % : lacquered colloxylin 8.1-12.2; glyptal synthetic resin 8.8-12.0; product of polyhydroxytetramethylene glycol and toluylenediisocyanate addition of the general formula HO(CH₂)₄O)_n-[CONH-C₆H₃(CH₃)NHCOO[(CH₂)₄)_n]_mH ,, where m = 6-10, n = 12-15 3-5; dry-rolled paste 8.8-11.2; plasticizer - dibutylphthalate and castor oil at the ratio 1:1, mixture of organic solvent and organic diluter at the ratio 3: 1 - the rest. Composition is prepared by conventional procedure in the mixer with rotary-jet stirrer. Properties: bending elasticity is 1 mm, stability for variable temperature action from 60 to -40 C - 40 cycles. EFFECT: enhanced quality of composition. 2 tbl