AQUEOUS POLYURETHANE DISPERSIONS OBTAINED FROM HYDROXYMETHYL-CONTAINING POLYESTER POLYOLS DERIVED FROM FATTY ACIDS Russian patent published in 2011 - IPC C08G18/36 C08G18/42 C08G18/10 C08G63/12 C07C69/675 

FIELD: chemistry.

SUBSTANCE: present invention relates to dispersions of polymer particles in a continuous aqueous phase, a method of preparing said dispersion and an adhesive composition, sealant or coating containing said dispersion. Dispersed particles in such a dispersion contain a polyurethane resin which is a product of a reaction between polyisocyanate, at least one curing agent and at least one material having equivalent mass from at least 400 up to 15000 and groups which react with isocyanate, where the said material contains at least one hydroxymethyl-containing polyester polyol. The hydroxymethyl-containing polyester polyol is a product of reaction between a fatty acid, having a hydroxymethyl group and containing 12-26 carbon atoms, or an ester of such a hydroxymethylated fatty acid and a polyol, hydroxylamine or polyamine initiator compound, having an average of at least 2.0 hydroxyl, primary amine and/or secondary amine groups/molecule, and having the following structure (I): [H-X]_(z-p)-R-[X-Z]_p.

EFFECT: obtaining dispersions of polyurethane particles in aqueous phase, for which a considerable amount of starting raw materials used to produce polyuretane resin would have been obtained from renewable resources, as well as obtaining a coating, adhesive or sealant made from a composition containing such a dispersion, which exhibit good resistance to light and hydrolysis and have good physical and chemical properties.

20 cl, 6 ex, 2 tbl