Manganese adjuncts, their preparation and use

B - Operations – Transporting – 01 – J

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252/94, 134/5.3

B01J 23/16 (2006.01) C11D 3/39 (2006.01) C11D 17/00 (2006.01)

Patent

CA 1234382

A B S T R A C T 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 adsorption, which compound is then protectively enclosed 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 instability to the composition and brown discolouration due to MnO2 formation.

466988

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