| 摘要 |
Automatic dishwashing detergent compositions comprising phosphate builder an d metal-containing bleach catalysts, preferably catalysts containing manganese and/or selected cobalt/ammonia catalysts. Preferred compositions comprise cobalt bleach catalyst having the formula: [Co(NH3)n(M)m(B)b]T y wherein cobalt is in the +3 oxidation state; n is 4 or 5 (preferably 5); M is one or more ligands coordinated to the cobalt by one site; m is 0, 1 or 2 (preferably 1); B is a ligand coordinated to the cobalt by two sites; b is 0 or 1 (preferably O), and when b=0, then m+n=6, and when b=1, then m-0 and n=4; and T is one or mo re appropriately selected counteranions present in a number y, where y is an integer to obtain a charge-balanced salt (preferably y is 1 to 3; most preferably 2 when T is a -1 charged anion); and wherein further said catalyst has a base hydrolysis rate constant of les s than 0.23 M-1 s-1 (25 .degree.C). Preferred automatic dishwashing compositions further comprise amylase and/or protease enzymes.
|
