COLOURFUL COMPOSITION, MULTILAYER POLYCARBONATE COMPOSITE AND METHOD OF ITS MANUFACTURE Russian patent published in 2018 - IPC C09D11/00 C09D11/10 C09D11/02 C08G64/16 C09D169/00 

FIELD: chemistry.

SUBSTANCE: colourful composition is described, containing, wt %: a binder comprising a polycarbonate derivative based on geminally disubstituted dihydroxyphenylalanine - 0.1-10.0; dye or mixture of dyes - 0.0-5.0; a functional material or a mixture of functional materials - 0.0-5.0; excipients - 0.0-10.0; a solvent or a mixture of solvents - to 100%. The polycarbonate derivative has luminescent properties and contains functional structural units of carbonates connected statistically or blockwise according to the formula

,

where R₁ - hydrogen or alkyl (C₁-C₃); R₂ - alkyl (C₅-C₈), cycloalkyl (C₅-C₆), arylalkyl (C₇-C₁₂); R₃ - fluorophore; n, m, k are integers denoting the number of the functional structural units in the molecule of the polycarbonate derivative. The ratio n/(n+m+k) is from 0.60 to 0.80; the ratio m/(n+m+k) is from 0.15 to 0.30; the ratio k/(n+m+k) is from 0.05 to 0.10. A multilayer polycarbonate composite and a method for manufacturing a multilayer polycarbonate composite are also disclosed.

EFFECT: method is developed for the production of anti-fake and lamination-resistant polycarbonate multilayer composites.

25 cl, 14 ex