Additive for a detergent formulation, detergent formulation...

Details Additive for a detergent formulation, detergent formulation... Additive for a detergent formulation, detergent formulation...

C - Chemistry, Metallurgy

11

D

C11D 3/33 (2006.01) C11D 1/14 (2006.01) C11D 1/66 (2006.01) C11D 1/72 (2006.01) C11D 1/722 (2006.01) C11D 11/00 (2006.01)

Patent

CA 2293760

An additive for a detergent formulation is described, comprising a sequestrant having formula (I), wherein: X = a COOH group or an alkyl chain comprising a COOH group; Y = an H atom; Z = an H atom, a C1-C30 alkyl group or a C2-C30 alkenyl group; and further comprising a nonionic surfactant and/or a hydrotrope. Preferably, said sequestrant is selected from the group of nitrilo triacetic acid (NTA), .beta.-alanine diacetic acid (.beta.-ADA)), methyl glycine diacetic acid (MGDA), serine diacetic acid (SDA) and ethyl glycine diacetic acid (EGDA). Furthermore, the use of a detergent formulation containing said additive for cleaning bottles, in particular returnable plastic bottles, such as PET (polyethylene teraphthalate) or polycarbonate bottles is described.

L'invention concerne un additif de formulation de détergent comprenant un agent séquestrant de la formule (I) dans laquelle: X = un groupe COOH ou une chaîne alkyle comprenant un groupe COOH, Y = un atome de H Z = un atome de H, un groupe alkyle en C¿1?-C¿30? ou un groupe alcényle en C¿2?-C¿30?; l'additif comprend également un tensioactif non ionique et/ou un hydrotope. De préférence, l'agent séquestrant est sélectionné dans le groupe formé par l'acide nitrilotriacétique (NTA), l'acide .beta.-alanine diacétique (.beta.-ADA), l'acide méthylglycine diacétique (MGDA), l'acide sérine diacétique (SDA) et l'acide éthylglycine diacétique (EGDA). L'invention concerne en outre l'utilisation d'une formulation de détergent contenant cet additif pour le nettoyage de bouteilles, notamment de bouteilles plastiques consignées - telles que des bouteilles en PET (polyéthylène téréphtalate) ou des bouteilles en polycarbonate.

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