POLYMERS CONTAINING METAL SALT NANOGEL Russian patent published in 2012 - IPC B01J13/00 C08L33/02 C08L101/00 A01N37/02 A01N59/06 A01N59/16 A01P1/00 

FIELD: nanotechnologies.

SUBSTANCE: invention relates to the method to produce aqueous dispersions containing a metal salt nanogel. The method includes mixing an aqueous dispersion containing a metal salt nanogel (D-I) with an aqueous dispersion (D-II) of a polymerisation, polycondensation or addition polymerisation product to produce a stable aqueous dispersion (D-III). The metal salt nanogel (D-I) represents an aqueous dispersion of polymer particles with a diametre of balls equal in volume making the maximum of 500 nm. Polymer particles of the aqueous dispersion (D-I) are produced in three stages. At the stage (i) an aqueous dispersion is produced of an ester of acrylic or methacrylic acid of meshed structure, at the stage (ii) groups of esters of acrylic or methacrylic acid are exposed to alkaline hydrolysis at least partially by addition of an alkaline metal or ammonia hydroxide, and at the stage (iii) the ions of the alkaline metal introduced at the stage (ii) or ammonia ions are at least partially substituted with plurivalent ions.

EFFECT: production of a stable aqueous dispersion (D-III) suitable for making water-resistant optically transparent products with antimicrobial activity Also a solid intermediate product is described, as well as water-resistant products, such as a film, a fibre, a plate or a thread.

16 cl, 2 ex