INTENSE FLUORESCENCE MARKERS FOR LIQUIDS OR ARTICLES Russian patent published in 2011 - IPC C08G18/48 C09K11/00 

FIELD: chemistry.

SUBSTANCE: liquid compound having intense fluorescence contains a product from reaction of at least one reactive polymer containing fluorophore, which contains a polyamine link of formula NCH₂CH₂N if needed, and at least one unsubstituted or substituted arylisocyanate or unsubstituted or substituted aliphatic or cycloaliphatic isocyanate with isocyanate index of approximately 100 or less. The reactive polymer has molecular weight between approximately 250 and approximately 40000 Da and between 1 and 8 active hydrogen atoms per molecule of the polymer.

EFFECT: obtained compound fluoresces in the UV, visible or near infrared region, is colourless and is compatible with various materials.

31 cl, 1 tbl