C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/33 (2006.01) C11D 3/39 (2006.01) C11D 3/395 (2006.01) C11D 7/18 (2006.01) C11D 7/38 (2006.01)
Patent
CA 2250226
There is provided a bleaching composition having enhanced hydrophilic stain removal capability comprising a metal-containing bleach catalyst, an oxygen- releasing bleach system; and an amino tricarboxylic acid or salt thereof having general formula (I), where R1, R2, and R3 are alkyl groups or substituted alkyl groups of chain length C1 to C4; n is 0 or 1; and X is an organic substituent group.
Compositions blanchissantes présentant une capacité améliorée de suppression de taches hydrophiles et comprenant un catalyseur de blanchiment contenant un métal, un système de blanchiment dégageant de l'oxygène, ainsi qu'un acide aminotricarboxylique ou un des sels représentés par la formule générale (I), dans laquelle R¿1?, R¿2? et R¿3? représentent des groupes alkyle ou des groupes alkyle substitué de longueur de chaîne C¿1? à C¿4?, n vaut 0 ou 1 et X représente un groupe substituant organique.
Dimock Stratton Clarizio Llp
The Procter & Gamble Company
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