Foaming detergent mixtures

Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component

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Details

510536, 510495, C11D 102, C11D 144, C11D 162, C11D 165

Patent

active

055808506

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
This invention relates to foaming detergent mixtures containing quaternized fatty acid alkanolamine esters and other anionic, nonionic and/or amphoteric or zwitterionic surfactants, to compositions containing these mixtures and to the use of the mixtures for the production of laundry detergents, dishwashing detergents and cleaning products and hair-care and personal hygiene products.
2. Statement of Related Art
The production of surface-active compositions such as, for example, laundry detergents, dishwashing detergents and cleaning products, hair shampoos or foam baths normally involves the use of anionic, nonionic and/or amphoteric or zwitterionic surfactants which are responsible for the foaming, wetting and cleaning power of these products. The addition of cationic surfactants to such compositions is often desirable because these surface-active substances have a softening effect, a foam-stabilizing effect and, in some cases, even a microbicidal effect. Unfortunately, the reality is that cationic surfactants form insoluble complexes with anionic groups of other constituents present in the compositions. These insoluble complexes precipitate and can lead, for example, to fiber incrustations--a well-known phenomenon in the case of the alkylbenzenesulfonate/QUAT combination [J. Am. Oil. Chem. Soc. 65, 1977 (1988)].
Accordingly, the problem addressed by the present invention was to develop new detergent mixtures which would be free from the disadvantages mentioned above.


DESCRIPTION OF THE INVENTION

The present invention relates to foaming detergent mixtures containing ##STR2## in which R.sup.1 CO is an aliphatic acyl group containing 6 to 22 carbon atoms and 0 or 1 double bond,
It has surprisingly been found that the detergent mixtures according to the invention show pronounced foaming power, favorable wetting properties, excellent washing and cleaning power and advantageous ecotoxicological and dermatological properties. More particularly, it has been found that quaternized fatty acid alkanolamine esters corresponding to formula (I) are highly compatible with anionic surfactants or surfactants containing anionic groups so that no insoluble salts or complexes are formed.
Quaternized fatty acid alkanolamine esters, so-called "esterquats", are known compounds which may be obtained by the relevant methods of preparative organic chemistry. One process for their production starts out from fatty acids and ethoxylated trialkanolamines which are esterified in the presence of acidic catalysts and a reducing agent while atmospheric oxygen is passed through and subsequently quaternized with dimethylsulfate [WO 91/01295, Pulcra]. The resulting products are technical mixtures essentially containing diesters and, in addition, monoesters and triesters.
Typical examples are fatty acid alkanolamine esters based on fatty acids containing 6 to 22 and, more particularly, 12 to 18 carbon atoms and 0 or 1 double bond with adducts of, on average, 1 to 10 and preferably 4 to 8 moles of ethylene oxide with triethanolamine or triisopropanolamine which are subsequently quaternized with methyl halides, dimethylsulfate or methylalkyl phosphates. It has proved to be of particular advantage to use difatty acid alkanolamine esters based on palmitic acid, stearic acid, elaidic acid and technical tallow fatty acid and adducts of, on average, 4 to 8 moles of EO with triethanolamine which are subsequently quaternized with methyl chloride or dimethylsulfate.
The foaming detergent mixtures according to the invention are obtained by combining the quaternized fatty acid alkanolamine esters with other anionic, nonionic and/or amphoteric or zwitterionic surfactants which are mentioned by way of example in the following:
Alkylbenzenesulfonates, alkanesulfonates, olefin sulfonates, alkylether sulfonates, glycerol ether sulfonates, .alpha.-methyl ester sulfonates, sulfofatty acids, alkylsulfates, fatty alcohol ether sulfates, glycerol ether sulfates, hydroxy mixed ether sulfates, monoglyceride

REFERENCES:
patent: 4554097 (1985-11-01), Schebece et al.
patent: 4728455 (1988-03-01), Rerek
patent: 4820511 (1989-04-01), Hoeffkes et al.
patent: 4830771 (1989-05-01), Ruback et al.
patent: 4840738 (1989-06-01), Hardy et al.
patent: 5066414 (1991-11-01), Chang
patent: 5266690 (1993-11-01), McCurry, Jr. et al.
J. Am. Oil. Chem. Soc. 65, 1977 (1988) (no month available).
"Kosmetische F arbemittel" of the Farbstoffkommission der Deutschen Forschungsgemeinschaft, published by Verlag Chemie, Weinheim, 1984, (no month available) pp. 81-106.

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