WATER-DISPERSIBLE, CYCLOCARBONATE-FUNCTIONALISED VINYL COPOLYMER SYSTEM Russian patent published in 2015 - IPC C08F220/10 C09D7/12 C09D133/14 C08L33/14 

FIELD: chemistry.

SUBSTANCE: invention relates to a water-dispersible, cyclocarbonate-functionalised vinyl copolymeric binder. Described is a water-dispersible cyclocarbonate-functionalised vinyl copolymeric binder, having structural groups derived from i) at least one vinyl monomer (I), having at least one cyclic carbonate group, ii) at least one vinyl monomer (II), having at least one emulsifying group, and iii) optionally at least one copolymerisable vinyl monomer (III), which is different from monomers (I) and (II), where the vinyl monomer (I) is

,

wherein R₁ denotes H or CH₃; R₂ denotes H, C_1-8-alkyl, C_6-14-aryl, C_7-20-aralkyl or -alkaryl and X denotes C_1-8-alkylene, C_6-14-arylene, C_7-20-aralkylene or -alkarylene, and the vinyl monomer (II) is a compound of formula (IV):

,

wherein R₁ denotes H or CH₃; R₃ denotes H or alkyl; Y denotes O, CH₂, CH₂O, NH or CH₂NH; Z denotes SO₃ ^(-) or N(CH₃)₃ ⁽⁺⁾; m equals 0 or 1 and n equals 0-10. Aldo described is a method of producing said binder, wherein monomers (I), (II) and optionally (III) undergo free-radical copolymerisation. Also described is an aqueous system for producing a cured coating, containing said binder and water. Described is a system for producing a cured coating, containing said binder, water and at least one curing agent and optionally catalysts, additives and/or auxiliary agents. Described is use of said binder to produce a cured coating.

EFFECT: obtaining a stable aqueous dispersion.

22 cl, 11 ex