Some cleavable dianionic surfactants were prepared by the reaction of aldehydes with diethyl bis(hydroxymethylb malonate, followed by saponification with ...
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www.springerlink.com/index/R6M1530567783TQ4.pdf
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An aluminum oxide (alumina) coated with three dianionic surfactants (commercial ... Compared on a unit surfactant mass basis, the bilayers of the dianionic ...
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cat.inist.fr/?aModele=afficheN&cpsidt=3231087
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An aluminum oxide (alumina) coated with three dianionic surfactants ..... Phenanthrene sorption isotherms at different dianionic surfactant loading levels ...
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pubs.acs.org/cgi-bin/jtext?esthag/30/i10/abs/es950768x
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The dianionic surfactants contain carboxylate, phosphate, sulfate, or sulfonate groups; the dicationic surfactants, quaternary ammonium groups; ...
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pubs.acs.org/doi/abs/10.1021/la960012r
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This invention relates to a liquid cleaning composition or shampoo comprising a surfactant system containing a dianionic or alkoxylated dianionic surfactant ...
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www.freepatentsonline.com/EP0907702.html
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Detergent composition comprising a bleaching agent and a dianionic or alkoxylated dianionic cleaning agent having a structural skeleton of at least five carbon atoms to which two anionic substituent groups spaced at least three atoms apart are attached, wherein one anionic substituent group is a sulfate group or an...
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www.freepatentsonline.com/EP0912694.html
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W.W. Schmidt, et al., "A Novel Dianionic Surfactant from the Reaction of C.sub.14 -Alkenylsuccinic Anhydride with Sodium Isethionate," JAOCS, 71:695 (1994).. A. Patel, et al., "The Phthalation of 2-amino-2-amino-2-deoxy-D-glucose and N-methyl-1-amino-1-deoxy-D-glucitol;
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www.patentgenius.com/patent/5731461.html
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Suitable dianionic surfactants are the disulfonates, disulfates, ormixtures thereof which may be represented by the following formula: where R is an acyclic aliphatic hydrocarbyl group having 15 to 20 carbon atoms and M is a water-solubilizing cation, for example, the C.sub.15 to C.sub.20 disodium 1,2-alkyldisulfates,
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www.patentgenius.com/patent/4162983.html
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Patent Claims: What is claimed is: 1. Liquid cleaning compositions comprising: a) as part of the surfactant system, from 0.1% to 50% by weight of a dianionic cleaning agent comprising a structural skeleton of at least five carbon atoms to which two ... b) as the other part of the surfactant system, from 0.1% to 50% by weight...
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www.patentstorm.us/patents/6239093/claims.html
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