Abstract: Automatic dishwashing detergent compositions comprising a diacyl peroxide particle are disclosed. The diacyl peroxide particles preferably comprise diacyl peroxide and a stabilizing additive in which the diacyl peroxide does not dissolve. The stabilizing additive is selected from the group consisting of inorganic salts, transition metal chelants, antioxidants, binding agents, coating agents, and mixtures thereof. The compositions are effective in removing stains from plastics under various temperature and pH conditions.

Abstract: The present invention relates to bleach catalyst-containing composite particles suitable for incorporation into granular detergent compositions, said composite particles comprising:(a) from about 1% to about 60% of bleach catalyst (preferably a cobalt catalyst); and(b) from about 40% to about 99% of carrier material that melts within the range of from about 38.degree. C. to about 77.degree. C. (preferably selected from the group consisting of polyethylene glycols, paraffin waxes, and mixtures thereof), and to processes for making these particles. These particles are particularly useful components of detergent compositions, such as laundry detergent compositions, hard surface cleaners, and especially automatic dishwashing detergent compositions.