CROSS-LINKED POLYURETHANE DISPERSIONS Russian patent published in 2014 - IPC C08G18/12 C08G18/32 C08G18/34 C08G18/42 C09D175/00 C09J175/00 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to water dispersion of polyurethane, respectively polyurethane urea, used for production of varnishes, sealants and glues, which contains dispersed in it polyurethanes, respectively polyurethane ureas, with terminal carboxyl groups and additional side sulphonate groups. Also described is a combination of binding agents for the application in substances for coatings, glues and/or sealants, which contains (i) the claimed dispersion and additionally as a component (ii) at least a bifunctional cross-linking agent with groups, reactionable with respect to carboxyl groups, selected from a group, including carbodiimides, aziridines and epoxides, as well as an application of the said combination and substrates, provided with a coating or glued with an application of the said combination.

EFFECT: obtaining water dispersions of polyurethane, respectively polyurethane urea, which possess high reaction ability, extremely long suitability for processing and make it possible to obtain high-quality cross-linked glue compounds, varnishes or sealants.

9 cl, 11 ex