Liquid or gel detergent compositions containing calcium and...

C - Chemistry – Metallurgy – 11 – D

Patent

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C11D 1/83 (2006.01) C11D 1/86 (2006.01) C11D 3/02 (2006.01) C11D 3/20 (2006.01) C11D 17/00 (2006.01) C11D 1/06 (2006.01) C11D 1/12 (2006.01) C11D 1/14 (2006.01) C11D 1/29 (2006.01) C11D 1/52 (2006.01) C11D 1/66 (2006.01) C11D 1/72 (2006.01) C11D 1/75 (2006.01) C11D 1/90 (2006.01) C11D 1/92 (2006.01)

Patent

CA 2143330

Liquid or gel detergent compositions having improved physical stability comprise, by weight of the composition: (a) from about 3 percent to about 95 % of anionic sulfate or sulfonate surfactant; (b) from about 3 % to about 40 % nonionic surfactant, preferably polyhydroxy fatty acid amide having formula (I) wherein R1 is hydrogen, C1-C4 hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl, or mixtures thereof; R7 is C5-C31 hydrocarbyl; and Z is a polyhydroxy-hydrocarbyl having a linear hydrocarbyl chain with at least three hydroxyl groups directly connected to the chain, or an alkoxylated derivative thereof; (c) from about 0.1% to about 3% of calcium or strontium ions; (d) from 0.05 to 10 % of malic, maleic or acetic acid, at a molar ratio with calcium of from 0.01:1 to 10:1.

L'invention concerne des compositions détergentes liquides ou en gel présentant une stabilité physique améliorée et contenant: (a) environ 3 % à 95 % en poids de sulfate anionique ou de tensioactif à base de sulfonate; (b) environ 3 % à 40 % de tensioactif non ionique, de préférence de l'amide d'acide gras polyhydroxylique représenté par la formule (I) dans laquelle R1 représente hydrogène, hydrocarbyle C1-C4, 2-hydroxyéthyle ou 2-hydroxypropyle ou des mélanges de ceux-ci; R2 représente hydrocarbyle C5-C31; et Z est un hydrocarbyle polyvalent à chaîne hydrocarbyle droite comprenant au moins trois groupes hydroxyle directement raccordés à la chaîne ou un dérivé alcoxylé de ces derniers; (c) environ 0,1 % à 3 % d'ions de calcium ou de strontium; (d) 0,05 à 10 % d'acide malique, maléique ou acétique et du calcium selon un rapport molaire de 0,01:1 à 10:1.

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