C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/39 (2006.01) C11D 17/06 (2006.01)
Patent
CA 2391475
Bleach activator particle for use in detergent compositions, comprising a bleach activator having the general formula (I): wherein R is an alkyl group containing from about 5 to about 18 carbon atoms wherein the longest linear alkyl chain extending from and including the carbonyl carbon contains from about 6 to about 10 carbon atoms and L is leaving group, the conjugate acid of which has a pKa in the range of from about 4 to about 13, preferably from about 6 to about 11, most preferably from about 8 to about 11; and a binder material comprising from about 0.1 % to about 15 %, by weight of the particle, of an inorganic salt capable of absorbing water of hydration; or a binder material comprising 0.1 %-15 % by weight of a saturated fatty acid having less than 16 carbon atoms, and wherein the particle contains no fatty acid having more than 16 carbon atoms.
L'invention se rapporte à une particule activatrice de blanchiment pour compositions détergentes comportant un activateur de blanchiment représenté par la formule générale (I), dans laquelle R est un groupe alkyle contenant approximativement de 5 à 8 atomes de carbone, où la chaîne alkyle linéaire la plus longue s'étendant à partir du carbone du groupement carbonyle et incluant ledit carbone contient approximativement de 6 à 10 atomes de carbone et L est un groupe partant, dont l'acide conjugué possède un pKa dans la plage comprise approximativement entre 4 et 13, de préférence comprise approximativement entre 6 et 11, et idéalement comprise approximativement entre 8 et 11. Ladite particule contient également un liant comportant de 0,1 % environ à 15 % environ, par rapport au poids de la particule, d'un sel inorganique capable d'absorber l'eau d'hydratation.
Brown Angelica Damaris
Preissner Karl Matthew
Kirby Eades Gale Baker
The Procter & Gamble Company
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