US 6,982,243 B2 | ||
Water-soluble granules of salen-type manganese complexes | ||
Menno Hazenkamp, Riehen (Switzerland); Frank Bachmann, Freiburg (Germany); Cornelia Makowka, Laufenburg (Germany); Petr Kvita, Reinach (Switzerland); Rolf Kuratli, Basel (Switzerland); and Anita Schmidlin, Sisseln (Switzerland) | ||
Assigned to Ciba Specialty Chemicals Corporation, Tarrytown, N.Y. (US) | ||
Filed on Oct. 27, 2004, as Appl. No. 10/974,375. | ||
Application 10/974375 is a division of application No. 10/048045, granted, now 6,828,293, previously published as PCT/EP00/06934, filed on Jul. 20, 2000. | ||
Claims priority of application No. 99810684 (EP), filed on Jul. 28, 1999. | ||
Prior Publication US 2005/0085401 A1, Apr. 21, 2005 | ||
This patent is subject to a terminal disclaimer. | ||
Int. Cl. C11D 1/83 (2006.01); C11D 3/26 (2006.01); C11D 3/39 (2006.01); C11D 3/395 (2006.01) |
U.S. Cl. 510—311 | 11 Claims |
1. 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, R1 and R1′ are each independently of the others cyano; halogen; OR4 or COOR4 wherein
R4 is hydrogen; nitro; linear or branched C1-C8alkyl; linear or branched partially fluorinated or perfluorinated C1-C8alkyl; or NHR6, NR5R6 or N⊕R5R6R7 wherein R5, R6 and R7 are the same or different and are each hydrogen or linear or branched C1-C12alkyl or wherein R5 and R6 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 C1-C8alkyl-R8 wherein R8 is a radical OR4, COOR4 or NR5R6 as defined above or is NH2 or N⊕R5R8R7 wherein R5, R6 and R7 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.
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