Bleach activator compositions

摘要

PCT No. PCT/GB94/02520 Sec. 371 Date May 3, 1996 Sec. 102(e) Date May 3, 1996 PCT Filed Nov. 16, 1994 PCT Pub. No. WO95/14077 PCT Pub. Date May 26, 1995A process for making a coated bleach component which may be incorporated into a detergent composition comprising hydrogen peroxide solution. The process includes the steps of dispersing the bleach component in a continuous liquid phase to form discrete islands of dispersed phase and subsequently forming a polymeric coating at the interface between the dispersed phase and the continuous phase. The coating formed is resistant to hydrogen peroxide solution and is removable when the liquid continuous phase is diluted with aqueous wash liquor. In this way particulate material which reacts with hydrogen peroxide can be incorporated into an aqueous detergent liquid which contains dissolved hydrogen peroxide, whilst maintaining stability.