Sodium percarbonate particles, process for their production, their use and detergent compositions containing them

Abstract

Sodium percarbonate particles having a long term stability expressed as heat output at 40° C. of less than 5 μW/g, measured after storage for 12 weeks at 40° C.

1 . Sodium percarbonate particles having a long term stability expressed as heat output at 40° C. of less than 5 μW/g, measured after storage for 12 weeks at 40° C. 
     
     
         2 . The particles according to  claim 1 , which are coated and comprise a sodium percarbonate core surrounded by at least one coating layer. 
     
     
         3 . The particles according to  claim 2 , in which said coating layer represents from 0.1 to 50% by weight of the coated sodium percarbonate particles. 
     
     
         4 . The particles according to  claim 2 , in which said coating layer comprises at least one coating agent selected from the group consisting of sodium silicate, sodium carbonate, sodium sulfate, magnesium sulfate, sodium borate, boric acid and mixtures thereof. 
     
     
         5 . A detergent composition comprising the sodium percarbonate particles of  claim 1  and at least one further component selected from the group consisting of surfactants, anti-redeposition and soil suspension agents, bleach activators, optical brightening agents, soil release agents, suds controllers, enzymes, fabric softening agents, perfumes, colours and processing aids.