Thickened peracid compositions

A - Human Necessities – 01 – N

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A01N 37/16 (2006.01) A01N 25/30 (2006.01) C07C 409/00 (2006.01) C11D 3/39 (2006.01) C11D 17/00 (2006.01)

Patent

CA 2208348

Thickened aqueous compositions comprising soluble peracids, particularly peracetic acid are provided. The compositions are thickened by the use of one or more aliphatic alcohol ethoxylates having the general formula: R1R2CH-(OCH2CH2)n-OH in which R1 and R2 are each either hydrogen or linear or branched alkyl such that R1 plus R2 has a total of from 7 to 22 carbon atoms, and n is selected in the range of 1 to 15, such that the number ratio of carbon atoms in R1 plus R2: n is greater than or equal to 3:1; a co-surfactant selected from the group consisting of anionic surfactants, amine oxides, amphoteric surfactants and quaternary ammonium compounds.

Des compositions aqueuses épaissies comprennent des peracides solubles, notamment de l'acide peracétique. Les compositions sont épaissies au moyen d'au moins un éthoxylate d'alcool aliphatique ayant la formule générale R<1>R<2>CH-(OCH2CH2)n-OH dans laquelle R<1> et R<2> représentent chacun soit hydrogène, soit alkyle linéaire ou ramifié de sorte que R<1> plus R<2> possèdent au total 7 à 22 atomes de carbone, et n est sélectionné dans une plage comprise entre 1 et 15 de sorte que le rapport numérique d'atomes de carbone dans R<1> plus R<2>: n soit supérieur ou égal à 3:1; et au moyen d'un co-tensioactif sélectionné dans le groupe constitué par des tensioactifs anioniques, des oxydes aminés, des tensioactifs amphotères et des composés d'ammonium quaternaire.

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