Low anionic surfactant detergent compositions

Details Low anionic surfactant detergent compositions Low anionic surfactant detergent compositions

Filed on

1997-06-25

Date issued

1999-09-28

Examiner

Lieberman, Paul

Patent Class

Cleaning compositions for solid surfaces, auxiliary compositions

SubClass

Cleaning compositions or processes of preparing

SubSubClass

For cleaning a specific substrate or removing a specific...

Other Related Categories

510352, 510356, 510427, 510492, C11D 183

Type

Patent

Status

active

Patent number

059588586

Description

ABSTRACT:
Detergent compositions comprising: a) a dianionic cleaning agent comprising 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 and the other anionic substituent is selected from sulfate and sulfonate; b) a nonionc surfactant (preferably alkyl ethoxylates, especially alkyl ethoxylates having an average of at least 3 ethoxylates); c) in total, less than about 20% by weight anionic surfactants; d) optionally, co-surfactants selected from the group consisting of amphoteric surfactants, zwitterionic surfactants, cationic surfactants, and mixtures thereof; and e) detergent composition adjunct ingredients; and wherein the weight ratio of anionic surfactant to nonionic surfactant plus any optional co-surfactant d) is with the range of from about 1:1 to about 1:10.

REFERENCES:
patent: 3634269 (1972-01-01), Anderson
patent: 3832408 (1974-08-01), Anderson
patent: 4857213 (1989-08-01), Caswell et al.
Kooreman, P.A., J.B.F.N. Engberts and N.M. van Os, "Synthesis, Physicochemical Properties, and Detergency of Disodium 2-Alkyl-1,3-propanediyl Bissulfates", Journal of Surfactants and Detergents, vol. 1, No. 1, Jan., 1988, pp. 23-28.
Overbeek, J.T.G., "Thermodynamica van de micelvorming", Chemish Weekblad, vol. 54, 1958, pp. 687-691.

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