METHOD OF PREPARING POLYMER DISPERSIONS WITH AVERAGE PARTICLE SIZE BETWEEN 1/10 AND 10 MCM Russian patent published in 2003 - IPC

FIELD: polymer materials. SUBSTANCE: stable fine dispersion for manufacturing dipped products, coated products, and adhesive compositions is prepared by inversion of water-in-oil emulsion consisting of organic and water phases, the former being polymer dissolved in waterimmiscible organic solvent. Water-in-oil emulsion, in which viscosity of organic phase ranges from 1.0 to 20000 mPascal, surface tension between organic and water phases ranges from 0.01 to 30 mN/m, size of water particles emulsified in organic phase ranges from 0.2 to 50 mcm, organic phase-to-water phase volume ratio ranges from 80:20 to 20:80, and containing emulsifiers in amounts between 0.1 and 20 wt parts per 100 wt parts of polymer, is affected by power from 1-10³ to 1-10⁸ W/cu.cm. Average particle size of polymer in thus prepared dispersion (0.1-10 mcm) is determined with the aid of ultracentrifuge. EFFECT: increased stability of dispersion. 2 cl, 5 dwg, 2 tbl, 40 ex