Encapsulated bleach particles

Details Encapsulated bleach particles Encapsulated bleach particles

C - Chemistry, Metallurgy

11

D

C11D 17/00 (2006.01) C01B 15/00 (2006.01) C11D 3/39 (2006.01) D06L 3/02 (2006.01)

Patent

CA 2233622

An encapsulated bleach particle is provided, comprising: (a) 1-30 % by weight of a coating including a gelled polymer material (as herein defined); (b) 99-70 % by weight of a core material selected from the group consisting of a peroxygen bleach compound, a bleach catalyst, and a bleach precursor. This particle was found to have both favourable storage stability and good solubility characteristics. Furthermore, a process for producing encapsulated particles having said composition is provided.

On décrit une particule de blanchiment encapsulée comprenant: (a) 1 à 30 % en poids d'un enrobage comportant un matériau polymère gélifié (tel que défini dans la description); (b) 99 à 70 % en poids d'un matériau formant noyau, choisi dans le groupe constitué par un composé de blanchiment peroxygène, un catalyseur de blanchiment et un précurseur de blanchiment. On a trouvé que cette particule présentait à la fois des caractéristiques de stabilité convenable de conservation et de bonne solubilité. En outre, on décrit un procédé de production de particules encapsulées comprenant ladite composition.

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