Patent ID: 7467633
Filing Date: 2008-12-23
Classification: C11D

Abstract:
1. A surfactant blend comprising an extended chain surfactant and a high HLB nonionic surfactant wherein the extended chain surfactant comprises a compound of formula (I): where R is a linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radical having from 12 to 20 carbon atoms, L is an oxyalkylene linking group selected from the group consisting of a block of poly-propylene oxide, a block of poly-butylene oxide, and mixtures thereof, A is a cationic species present for charge neutrality selected from the group of hydrogen, an alkali metal, alkaline earth metal and animonium which may be substituted with one or more organic groups, x is the average degree of alkoxylation of the linking group ranging from 12 to 18, and y is the average degree of ethoxylation ranging from 1 to 5, the average degree of total alkoxylation ranging from 14 to 20 moles, and wherein the high HLB nonionic surfactant is not an ethoxylated nonylphenol, an ethoxylated dinonylphenol, an ethoxylated dodecylphenol, an ethoxylated dodecyl alcohol or a sorbitan lauryl ester ethoxylated with 20 EO groups.