Manganese adjuncts, their preparation and use

Details Manganese adjuncts, their preparation and use Manganese adjuncts, their preparation and use

1984-11-05

1986-12-02

Lieberman, Paul

Compositions

Electrolytes for electrical devices

252 90, 252 95, 252 99, 25217425, 2521861, 25218638, 25218641, 25218643, 502324, C11D 942, D06L 300

Patent

active

046263730

ABSTRACT:
A stable manganese adjunct for use as a bleach catalyst is obtained by having a manganese (II) cation bound to a "ligand" forming either a true complex compound, a water-insoluble salt compound, or an ion-binding compound by absorption, which compound is then protectively embedded in a matrix of water-soluble or water-dispersible material. The adjunct is particularly suitable for incorporation in fabric-washing powder compositions containing a peroxide bleach without causing instablity to the composition and brown discoloration due to MnO.sub.2 formation.

REFERENCES:
patent: 3156654 (1964-11-01), Konecny et al.
patent: 3372125 (1968-03-01), Hill et al.
patent: 3398096 (1968-08-01), Das et al.
patent: 3532634 (1970-10-01), Woods
patent: 4119557 (1978-10-01), Postlethwaite
patent: 4208295 (1980-06-01), Sai et al.
patent: 4481129 (1984-11-01), Oakes
patent: 4536183 (1985-08-01), Namnath

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