ELECTRODEPOSITED AQUEOUS RESIN-CONTAINING DISPERSIONS AND METHOD OF PREPARING SAID DISPERSIONS Russian patent published in 2010 - IPC C09D5/02 C09D5/44 C09D133/02 C09D133/08 C09D133/10 C08F2/16 

FIELD: chemistry.

SUBSTANCE: given resin-containing dispersions contain a polymer dispersing agent which contains at least a partially neutralised high-molecular cationic acrylic polymer and a cationic acrylic polymer different from the polymer dispersing agent. The said dispersions can be used in electrodeposited compositions and for depositing, at least partially, onto an electrically conducting substrate. The method of depositing a coating from such compositions onto an electrically conducting substrate involves electrophoretic precipitation of the composition of electrodeposited coating and heating the substrate, while depositing the coating, to a temperature and in a period of time sufficient for solidification of the electrodeposited coating on the substrate. The method of preparing an electrodeposited aqueous resin-containing dispersion for coating involves dispersing a composition of polymerisable monomers with ethylene-type unsaturation and a free-radical initiator in an aqueous medium in the presence of at least a partially neutralised high-molecular cationic acrylic polymer dispersing agent and emulsion polymerisation of the composition of monomers.

EFFECT: invention enables to obtain aqueous dispersions of acrylic polymers suitable for use in electrodeposited compositions; the dispersion is stable even without adding a surfactant.

20 cl, 28 tbl, 27 ex