THERMOPLASTIC POLYAMIDE PARTICLES Russian patent published in 2019 - IPC C11D3/37 C08K3/13 C08K3/30 C11D11/00 

FIELD: chemistry.

SUBSTANCE: invention relates to thermoplastic polymer particles used during washing. Disclosed are thermoplastic polyamide particles containing at least one polyamide and at least one inorganic filler in form of particles with density of at least 2.5 g/cm³, at that thermoplastic polyamide particles have density of at least 1.65 g/cm³, preferably at least 1.9 g/cm³, ellipsoidal or almost ellipsoidal with the largest diameter of 1–100 mm, preferably 2–10 mm, more preferably 3–8 mm, where at least one inorganic filler is selected from metals, metal oxides, metal salts and mixtures thereof, preferably from BaSO₄, TiO₂, ZnS, Al₂O₃ and mixtures thereof. Disclosed also is a method of producing said particles and use thereof during washing.

EFFECT: technical result is that disclosed thermoplastic polyamide particles improve washing efficiency, are easily removed from articles or from washing liquid after washing and do not have abrasive effect on textile products.

14 cl, 4 tbl, 10 ex