FIELD: chemistry.
SUBSTANCE: invention relates to versions of a coating composition which can be used in various industries for imparting decorative and/or protective finishing, as well as to a substrate which contains said composition. Composition comprises a film-forming resin, a cross-linking agent which reacts with a film-forming resin, and a compound, having a hydroxy-functional alkyl polyurea and/or a group of hydroxy-functional alkyl polyurea of the formula given below, in which R2 contains a substituted or unsubstituted C1-C36-alkyl group, an aromatic group, an isocyanurate group, a biuret group, an allophanate group, a glycoluril group, a benzoguanamine group, a polyether amine group and/or a polymer group, different from polyether-amine group and having Mn equal to 500 or more; each R1 is independently hydrogen, or alkyl, having at least 1 carbon atom, or hydroxy-functional alkyl, having 2 or more carbon atoms, and at least one R1 is a hydroxy-functional alkyl having 2 or more carbon atoms; n is equal to 2–6. Polyurea is present in the composition in amount of 0.5–10 wt % relative to the total weight of the solid substances. Composition can contain wood particles and can be applied on any substrate as a primer, a base layer and/or an upper layer.
EFFECT: invention increases adhesion, moisture resistance, and film resistance to solvents.
24 cl, 1 dwg, 10 tbl, 20 ex
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Authors
Dates
2020-10-06—Published
2017-01-13—Filed