SOLID LAUNDRY DETERGENT COMPOSITION CONTAINING DETERGENT ANIONIC SURFACTANT AND HIGH-POROSITY CARRIER Russian patent published in 2010 - IPC C11D17/06 

FIELD: chemistry.

SUBSTANCE: invention relates to laundry detergents. The solid detergent composition in form of particles contains a detergent anionic surfactant, a solid carrier with total pore volume greater than 0.3 ml/g, average pore diametre greater than 3 micrometres and surface area less than 1.0 m²/g, a zeolite additive, a phosphate additive and a silicate salt. At least part of the detergent anionic surfactant and at least part of the solid carrier are in form of a jointly ground additive. All components are taken in a defined ratio. The method involves mixing the initial material to make a solid carrier with formation of an aqueous mixture, drying the aqueous mixture at input gas temperature of at least 300°C for less than 20 seconds to form solid carrier material and mixing the solid carrier material with a detergent anionic surfactant to form a jointly ground mixture. The solid carrier material or jointly ground mixture is mixed with one or more components selected from a zeolite additive, a phosphate additive and a silicate salt.

EFFECT: invention enables to obtain solid unfinished laundry detergent compositions which contain a combination of a detergent anionic surfactant and a high-porosity carrier.

7 cl, 1 tbl