ACTIVE ANTIPERSPIRANT COMPOSITIONS AND THEIR FABRICATION Russian patent published in 2015 - IPC C01F7/56 A61K8/26 A61Q15/00 

FIELD: aircraft engineering.

SUBSTANCE: claimed antiperspirant composition includes aluminium salts. Note here that aluminium salt features (i) aluminium-to-chloride molar ratio of 0.3:1 to 3:1, and (ii) contains the particles of polyhydroxyoxoaluminium cations. The latter are detected at 76 ppm by NMR ²⁷Al spectroscopy and observed in NMR ²⁷Al spectrum at relative amount of whatever other cations of polyhydroxyoxoaluminium. Production of said composition comprises heating of water solution containing (i) first aluminium salt with cations of polyhydroxyoxoaluminium Al₃₀. Heating is performed by one of the following methods. a) At 100-250°C in isochoric reactor or under conditions of hydrothermal reaction for time sufficient for formation of the particles of polyhydroxyoxoaluminium cations detected at 76 ppm by NMR ²⁷Al spectroscopy. b) At 100°C with backflow condenser for approx 10 days or more, not necessarily for approx 30 days or more.

EFFECT: higher efficiency and stability.

35 cl, 4 dwg, 2 tbl, 1 ex