Patent ID: 6982243

Claim:
Slow and controlled dissolving water-soluble granules of salen manganese complexes, consisting essentially of a) from 1 to 89% by weight of a water-soluble manganese complex of formula wherein m, n and p are each independently of the others 0, 1, 2 or 3, R, R 1 and R 1 ′ are each independently of the others cyano; halogen; OR 4 or COOR 4 wherein R 4 is hydrogen; nitro; linear or branched C 1 -C 8 alkyl; linear or branched partially fluorinated or perfluorinated C 1 -C 8 alkyl; or NHR 6 , NR 5 R 6 or N ⊕ R 5 R 6 R 7 wherein R 5 , R 6 and R 7 are the same or different and are each hydrogen or linear or branched C 1 -C 12 alkyl or wherein R 5 and R 6 together with the nitrogen atom to which they are bonded form a 5-, 6- or 7-membered ring, which may contain further hetero atoms, or are linear or branched C 1 -C 8 alkyl-R 8 wherein R 8 is a radical OR 4 , COOR 4 or NR 5 R 6 as defined above or is NH 2 or N ⊕ R 5 R 8 R 7 wherein R 5 , R 6 and R 7 are as defined above, b) from 10 to 95% by weight of a dissolution restrainer, c) from 0 to 20% by weight of a further additive and d) from 1 to 15% by weight of water, based on the total weight of the granules.