VISUALLY CONTRASTING AESTHETIC PARTICLES HAVING IMPROVED SOLUBILITY IN WATER, ESPECIALLY USEFUL FOR COMBINING WITH POWDERED OR GRANULAR COMPOSITIONS Russian patent published in 2017 - IPC C11D17/06 C11D1/04 C11D3/12 C11D3/40 C11D3/20 

FIELD: chemistry.

SUBSTANCE: visually contrasting aesthetic particles are described, where each particle contains a mixture: of 55 wt % to 70 wt % of fatty acid, of 10 wt % to 45 wt % of sodium montmorillonite clay, of 10 wt % to 45 wt % of calcium montmorillonite clay, where the particles comprise less than 5 wt % of the residue when subjected to the test for solubility, where the solubility test includes: (i) adding 3.5 g of detergent with the subsequent immediate addition of 1 g of the aesthetic particle in a vessel containing 1000 ml of water of medium hardness, at a temperature of 15°C with stirring at 200 rpm, (ii) after complete dissolution of the aesthetic particle or 15 minutes of mixing, depending on what occurs first, draining the washing liquid and any undissolved material in a 150 mcm sieve and rinsing with deionized water, (iii) transferring the liquid and any undissolved material to a Buchner funnel and filtering through a dried and pre-weighed filter paper of Whatman® type 4, and (iv) drying the filter paper at 105°C and weighing for the determination.

EFFECT: increased solubility in water, useful for combination with a granular detergent composition.

21 cl, 1 dwg, 2 ex