METHOD FOR OBTAINING WATER-EMULSIFIABLE POLYURETHANE ACRYLATES Russian patent published in 2018 - IPC C08G18/67 C09D175/16 C09J175/16 C09D5/02 

FIELD: chemistry.

SUBSTANCE: present invention relates to a process for preparation and use of a urethane(meth)acrylate (A) comprising, as formation components: (a) at least one isocyanate having at least 2 isocyanate functions, (b) at least one polyalkylene oxide polyether having at least 2 hydroxyl functions, (c) at least one hydroxy-functional (meth)acrylate having exactly one hydroxyl function and at least one (meth)acrylate function, (d) at least one compound having at least one isocyanate-reactive group and at least one acid function, (e) optionally at least one compound having at least one isocyanate-reactive group and at least one basic group for neutralization of the acid groups of component (d), (f1) at least one monofunctional polyalkylene oxide polyether alcohol having a number-average molecular weight Mn of at least 600 g/mol, (f2) optionally at least one monoalcohol (f2) having exactly one hydroxyl function and no further functional group beyond that, (g) optionally at least one di- or polyamine, (h) optionally at least one primary or secondary amine (h) for activation of the (meth)acrylate groups in coating compositions.

EFFECT: product has elevated storage stability.

14 cl, 6 ex