FIELD: organic chemistry.
SUBSTANCE: invention refers to glues used for lignocelluloses composite material production and method of their production. First version of glue compositions includes soya protein and/or lignin, at least one formaldehyde-free hardener containing at least one amine, amide, imine, imide or nitrogen-containing heterocyclic functional group able to react with at least one functional group of soya protein; and at least one compound selected from: compounds of boron, oxide or hydroxide of IA group, or oxide or hydroxide of IIAgroup. Second version of glue composition contains soya protein as first component and/or lignin, and at least one formaldehyde-free hardener selected from product of epichlorhydrin and ethylenediamine reaction , product of epichlorhydrin and bis-hexamethylenetriamine reaction, or product of epichlorhydrin and hexamethylenediamine reaction. Method includes covering at least one lignocellulose material with glue composition of first or second versions, as well as junction of glued lignocelluloses material with one another lignocelluloses material. Invention covers lignocellulose composite materials made under this method.
EFFECT: production of formaldehyde-free glues.
37 cl, 4 ex, 3 dwg
