MICRONISATION OF POLYOLS Russian patent published in 2013 - IPC C07H3/02 A23G4/10 A23G4/20 A23P1/00 

FIELD: chemistry.

SUBSTANCE: described is a method for micronisation of polyols, comprising the following steps: a) providing a solid polyol, having chemical formula C_nH_2n+2O_n, which is solid at 20-25°C, b) feeding the polyol into a jet mill and applying pressure using nitrogen, and c) collecting the micronised polyol. Micronised polyols obtained using the disclosed method, having particle size distribution (d₅₀) from 20 to 60 mcm and a flowability below or equal to 5 s/100 g, preferably below 5 s/100 g, are disclosed. The micronised polyols, although having lower particle size distribution compared to the corresponding milled polyols, have improved flowability. Most preferably, the polyol is selected from a group comprising one or more of such compounds as maltitol, isomalt, mannitol, sorbitol, xylitol and erythritol.

EFFECT: preferred polyols are characterised by a compressibility index equal to or higher than 40.

14 cl, 4 ex