LABELS TO PREVENT FALSIFICATION FOR VARIANTS OF HIGH TEMPERATURE APPLICATIONS Russian patent published in 2022 - IPC C08J5/18 

FIELD: counterfeit protection.

SUBSTANCE: invention relates to films made of poly(meth)acrylimide, and labels containing them to prevent falsification. Offered poly(meth)acrylimide film for use in the label to prevent falsification, containing, wt. %: poly(met)acrylimide containing at least 50 wt. % of the links of formula (I), where R¹ and R² are selected from hydrogen and methyl, and R³ is a hydrogen or C₁-C₄-alkyl group (30.0-92.5), one or more additives modifying impact strength (2.5-40.0), one or more inorganic fillers (5.0-40.0), if necessary, polyalkyl(meth)acrylate (0-30.0), one or more UV absorbers (0-5.0) and one or more UV stabilizers (0-5.0). The layered material for the manufacture of labels, a label, methods for their use and the use of labels to prevent falsification are also proposed.

EFFECT: provision of a brittle film for use in labels to prevent falsification with increased chemical resistance, which can be used at high temperatures.

14 cl, 3 dwg, 8 ex