Compositions – Fluent dielectric – N-containing
Patent
1992-10-07
1993-11-02
Lieberman, Paul
Compositions
Fluent dielectric
N-containing
252550, 252554, 252173, 25217417, 252DIG14, C11D 114, C11D 183
Patent
active
052581420
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to concentrated surfactant mixtures of alkyl glycosides, alkyl sulfates and alkane sulfonates in the form of stable, free-flowing and pumpable liquids and to their use as compounds for the production of liquid detergents.
2. Statement of Related Art
It has long been known that alkyl glycosides containing long-chain alkyl groups are nonionic surfactants. The expert also knows (as described, for example, in A. M. Schwartz, J. W. Perry, Surface Active Agents, Vol. 1, Interscience Publishers, 1949, page 372) that surfactant mixtures generally show synergistic effects and often have detergent properties better than the sum total of the values of the individual components.
Detergents containing alkyl glycosides in combination with at least one typical anionic surfactant are described in European patent application EP 070 074. Detergents containing alkyl glycosides and anionic surfactants are known from European patent application EP 092 877. In addition, liquid detergents containing alkyl glycosides, certain other nonionic surfactants and anionic surfactants are known from European patent application EP 105 556. Liquid detergents containing alkyl glycosides and typical anionic surfactants are known from International patent application WO 86/02943.
In the production of liquid detergents, the individual components are generally used in the form of free-flowing solutions which each contain one substance or which, as so-called compounds, consist of several substances typically encountered in detergents. The components intended for mixing to the final detergent should have as high an active substance content as possible and, at the same time, should be easy to handle, i.e. they should be free-flowing and readily pumpable and should have high stability in storage. Alkyl glycosides are normally obtained in the form of highly viscous pastes.
The problem addressed by the present invention was to develop a storable liquid surfactant mixture from an alkyl glycoside paste.
This problem has been solved by an aqueous mixture of certain quantities of alkyl glycoside, alkyl sulfate and secondary alkane sulfonate.
DESCRIPTION OF THE INVENTION
The compounds according to the invention are aqueous mixtures consisting essentially of an alkyl glycoside and two different synthetic anionic surfactants, an alkyl sulfate and an alkane sulfonate, the alkyl glycoside corresponding to formula I is a number of 1 to 10, the alkyl sulfate corresponding to formula II from the group comprising hydrogen, alkali and ammonium ions,
and the alkane sulfonate corresponding to formula III ##STR2## in which R.sup.3 and R.sup.4 independently of one another represent C.sub.1-18 alkyl radicals, with the proviso that the total number of carbon atoms in the alkane sulfonate is between 10 and 20, and Y is a cation selected from the group consisting of hydrogen, alkali and ammonium ions, the compounds containing 35 to 55% by weight water, 10 to 30% by weight and preferably 17 to 25% by weight alkyl glycoside, 10 to 20% by weight and preferably 12 to 18% by weight alkyl sulfate and 1 to 15% by weight and preferably 3 to 10% by weight alkane sulfonate.
The alkyl glycosides suitable for the surfactant mixtures according to the invention and their production are described, for example, in European patent applications EP 92 355, EP 301 298, EP 357 969 and EP 362 671 or in U.S. Pat. No. 3,547,828. The glycoside components ((G).sub.n in formula I) of these alkyl glycosides are oligomers or polymers of naturally occurring aldose or ketose monomers, including in particular glucose, mannose, fructose, galactose, talose, gulose, altrose, allose, idose, ribose, arabinose, xylose and lyxose and mixtures thereof. The oligomers consisting of these glycoside-bonded monomers are characterized not only by the type of sugar present therein, but also by their number, the so-called degree of oligomerization. As an analytically determined quantity, the degree of oligomerization (n in formula I) is gen
REFERENCES:
patent: 3547828 (1970-12-01), Mansfield et al.
patent: 4017409 (1977-04-01), Demessemaekers et al.
patent: 4235752 (1980-11-01), Rossall et al.
patent: 4396520 (1983-08-01), Payne et al.
patent: 4663069 (1987-05-01), Llenado
patent: 4671895 (1987-06-01), Erilli et al.
patent: 4732704 (1988-03-01), Biermann et al.
patent: 4820448 (1989-04-01), Wegener et al.
patent: 5025069 (1991-06-01), Deguchi et al.
patent: 5035814 (1991-07-01), Maaser
patent: 5138046 (1992-08-01), Wuest et al.
Schwartz/Perry, Surface Active Agents, vol. 1, Interscience Publishers, 1949, p. 372.
Giesen Brigitte
Syldath Andreas
Drach John E.
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Lieberman Paul
Swope Bradley A.
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