Compositions – Fluent dielectric – N-containing
Patent
1974-12-23
1976-07-13
Willis, Jr., P.E.
Compositions
Fluent dielectric
N-containing
252 95, 252100, 252142, C11D 122, C11D 1831
Patent
active
039692825
ABSTRACT:
An acidic, stable, homogeneous, mobile liquid, biodegradable surfactant composition is provided which consists essentially of
1. at least one liquid hydrophilic nonionic surfactant,
2. at least one substantially salt free liquid biodegradable alkyl benzene sulfonic acid surfactant corresponding to the structural formula: ##SPC1##
Wherein n is an integer having a numerical value of from 3 to 14,
3. about 0.0001-1% by weight of hydrogen peroxide, and
4. about 0-95% by weight of water. The surfactant composition contains a weight ratio of surfactant (1) to surfactant (2) from 1:5 to 5:1, and surfactant (1) has hydrophilic properties whereby the surfactant composition is stable and remains homogeneous in the absence of an added hydrotrope. The hydrogen peroxide is present in an amount to control obnoxious odors and the use of an expensive perfume to mask odors is not necessary. Acidic stock surfactant solutions which are compatible with alkaline aqueous washing media may be prepared by diluting the surfactant composition with water. The acidic surfactant composition and/or stock solution may be admixed with an alkaline aqueous medium containing a dissolved substance providing ammonion ion, sodium ion, and/or potassium ion in an amount to form the corresponding salt of the alkyl benzene sulfonic acid surfactant and the resulting admixture may be used in washing soiled substrates. The surfactant composition and stock solution are especially useful in laundering textile materials and, when used for this purpose, a very high degree of soil removal is achieved. The surfactant composition and stock solution do not require water softening agents when washing in hard water.
REFERENCES:
patent: 2827484 (1958-03-01), Carlson et al.
patent: 3068279 (1962-12-01), Groves et al.
patent: 3218260 (1965-11-01), Lewandowski
Kastra, Def. Pub. of Ser. No. 182,863, Filed Sept. 22, 1971, Def. Pub. No. T903,009.
Ciko John D.
Cramer John J.
Kappler Frank R.
BASF Wyandotte Corporation
Dunn Robert E.
Landingham, Jr. L. S. Van
Swick Bernhard R.
Willis, Jr. P.E.
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