초록 ▼

Composite particles comprise a bleach catalyst plus one or more detersive enzymes. The particles are especially useful in automatic dishwashing compositions. Thus, a cobalt (III) or manganese (III) bleach catalyst is combined with protease or amylase enzymes and a carrier. The resulting particles ar

Composite particles comprise a bleach catalyst plus one or more detersive enzymes. The particles are especially useful in automatic dishwashing compositions. Thus, a cobalt (III) or manganese (III) bleach catalyst is combined with protease or amylase enzymes and a carrier. The resulting particles are used in combination with perborate or percarbonate bleach to clean dishware in an automatic machine.

대표청구항 ▼

[ What is claimed is:] [1.] Bleach catalyst and enzyme-containing composite particle suitable for incorporation into detergent compositions, said composite particles comprising;(a) from about 0.01% to about 20% of a bleach catalyst selected from the group consisting essentially of;(I) a bleach catal

[ What is claimed is:] [1.] Bleach catalyst and enzyme-containing composite particle suitable for incorporation into detergent compositions, said composite particles comprising;(a) from about 0.01% to about 20% of a bleach catalyst selected from the group consisting essentially of;(I) a bleach catalyst having the formula (Co(NH.sub.3).sub.5 OAc)T.sub.Y, wherein OAc represents an acetate moiety, T is a counteranion selected from the group consisting of chloride, iodide, I.sub.3 --, formate, nitrate, nitrite, sulfate, sulfite, citrate, acetate, carbonate, bromide, PF.sub.6 --, BF.sub.4 --, B(Ph).sub.4 --, phosphate, phosphite, silicate, tosylate, methanesulfonate, and combinations thereof, and y is an integer of from 1 to 3;(ii) a bleach catalyst having the formula (Co(NH.sub.3).sub.n (M).sub.m (B).sub.b)T.sub.y, wherein cobalt is in the+3 oxidation state; n is 4 or 5; M is one or more ligands coordinated to the cobalt by one site; m is 0, 1, or 2; B is a ligand coordinated to the cobalt by two sites; b is 0 or 1, and when b=0, then m+n=6, and when b=1, then m=0 and n=4; and T is a counteranion selected from the group consisting of chloride, iodide, I.sub.3 --, formate, nitrate, nitrite, sulfate, sulfite, citrate, acetate, carbonate, bromide, PF.sub.6 --, BF.sub.4 --, B(Ph).sub.4 --, phosphate, phosphite, silicate, tosylate, methanesulfonate, and combinations thereof, y is an integer of from 1 to 3; and wherein further said catalyst has a base hydrolysis rate constant of less than 0.23M-1 s-1 (25.degree. C.);(b) from about 0.01% to about 15% by weight of a detersive enzyme selected from the group consisting of a detersive protease, a detersive amylase, or mixtures thereof;(c) the balance comprising a carrier material; rein said composite particles have a mean particle size of from about 200 to about 2400 microns.