SYSTEM FOR DELIVERING FRAGRANT SUBSTANCES Russian patent published in 2010 - IPC C11D3/50 

FIELD: chemistry.

SUBSTANCE: system for delivering fragrant substances includes water-insoluble carrier particles contained at the surface of silanol groups. At least some of the said silanol groups are substituted with organic residues through inoculation of at least one organosilicon compound, and at least some of the said organic residues contain positively charged functional groups, including a positively charged alkylated nitrogen atom. The system also includes an aromatising agent adsorbed or absorbed in the said carrier particles. The carrier particles preferably include silicon dioxide, silicate, aluminium silicate or their mixture. Also described is a method of making a system for delivering fragrant substances. A fabric softening composition includes the system for delivering fragrant substances and one or more active quaternaryammonia compounds for softening fabrics. The washing composition contains the system for delivering fragrant substances and one more surfactants.

EFFECT: increased intensity and strength of fragrance with smaller amount of fragrant substances in the washing composition.

18 cl, 4 tbl, 14 ex