abstract |
FIELD: purification of optical articles. SUBSTANCE: proposed composition contains (mass %): acetone 6-18, ethanol 1.6-2.8, acetonitrile 1-4, N, N,N′-dialkyl C 1 -C 6 -diimodonaphthlene-1,4,5,8-tetracarboxylic acid 0.001-0.1, halogenated hydrocarbon solvent to 100. EFFECT: improves efficiency of composition. 3 tbl |