Detergent composition containing polycarboxylate agents...

C - Chemistry – Metallurgy – 11 – D

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C11D 3/37 (2006.01)

Patent

CA 2191564

A detergent composition containing at least 10 % detergent surfactant; and at least 10 % detergent builder system. The detergent builder system contains a polycarboxylate agent having an Index Ratio (IR) of not less than 100, wherein IR = Binding Index (BI) x Dispersing Index (DI)/100. Preferred are copolymers of maleic and acrylic acid, and salts thereof, having a molecular weight between 5,000 and 15,000. Such polymers provide hardness binding capacity and excellent clay soil dispersion, even under underbuilt wash solution conditions.

Composition détergente contenant au moins 10 % de tensioactif de détergent et au moins 10 % d'un système renforçateur du détergent. Celui-ci contient un agent polycarboxylate possédant un rapport d'indice (IR) non inférieur à 100, où IR = indice de fixation (BI) x indice de dispersion/100. Préférence est donnée à des copolymères d'acide maléique et acrylique, ainsi que leurs sels, possédant un poids moléculaire situé entre 5.000 et 15.000. Ces polymères présentent des capacités de fixation de dureté et de dispersion excellentes dans des sols argileux, même dans des cas où la solution de lavage présente une capacité insuffisante de séquestration de calcium et de magnésium.

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