Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1997-04-04
1999-07-20
Wilson, James O.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 41, 5361231, 536124, 514 25, C07G 300, C07H 1500, C07H 100
Patent
active
059257474
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to pumpable water-containing surfactant concentrates containing alkyl and/or alkenyl oligoglycosides and betaine surfactants, to a process for their production and to their use for the production of surface-active formulations.
2. Statement of Related Art
Alkyl oligoglycosides, more particularly alkyl oligoglucosides, are nonionic surfactants which are acquiring increasing significance by virtue of their excellent detergent properties and their high ecotoxicological compatibility. The production and use of these substances have been described just recently in a number of synoptic articles, of which the articles by H. Hensen in Skin Care Forum, 1, (October 1992), D. Balzer and N. Ripke in Seifen-Ole-Fette-Wachse 118, 894 (1992) and B. Brancq in Seifen-Ole-Fette-Wachse 118 905 (1992) are cited as examples.
In some respects, however, the use of alkyl oligoglucosides is attended by problems. For example, it is not possible to produce pumpable water-containing concentrates with a solids content above 40% by weight without the sugar component undergoing partial decomposition in the course of the concentration process. The glycosides share this property with most anionic surfactants which form a viscous gel phase above an active substance content of around 35% by weight. In addition, alkyl oligoglucosides tend to crystallize during storage at low temperatures which significantly complicates their subsequent use.
The use of alkyl glucosides together with amphoteric or zwitterionic surfactants of the betaine type in surface-active formulations is known in principle from the prior art.
Mixtures of--albeit short-chain--alkyl glucosides and alkyl amido-betaines or imidazolinium betaines were disclosed for the first time in an article by G. Proserpio et al. in Rivista Italiana 56, 567 (1974). EP-A 0 075 994 (Procter & Gamble) discloses combinations of alkyl glucosides with amine oxides, unsaturated soaps, water-soluble builders and selected anionic surfactants. In addition, the mixtures may contain amphoteric surfactants, for example betaines of the 6-(N-dodecylbenzyl-N,N-dimethylammonium)-hexanoate type. Liquid soaps and foam baths containing alkyl glucosides, betaines and amine oxides are known from U.S. Pat. No. 4,668,422 (Henkel Corp.). EP-A 0 250 181 (Helene Curtis) relates to liquid detergents containing alkyl glucosides, anionic surfactants and selected amphoteric surfactants of betaine structure. EP-A 0 341 071 (Unilever) discloses surfactant combinations containing alkyl glucosides, alkyl sulfates, betaines and/or amine oxides and optionally alkanolamides. Manual dishwashing detergents containing alkyl glucosides, fatty alcohol sulfates, fatty alcohol ether sulfates and betaines are known from EP-A 0 513 138, DE-A1 4 234 487 and DE-A1 4 311 114 (all Henkel KGaA). EP-A 0 453 238 (Unilever) describes mild shampoos based on alkyl glucosides, anionic surfactants and betaines. Finally, EP-A 0 508 507 (Berol Nobel) relates to liquid detergents containing alkyl glucosides, anionic surfactants and selected amphoteric surfactants of betaine structure. However, these documents all relate to dilute water-containing surfactant mixtures or formulations and not to concentrates.
In EP-A2 0 353 580 (Th. Goldschmidt), it is proposed to prepare concentrated, flowable, water-containing solutions of betaines optionally containing lower aliphatic alcohols by carrying out the quaternization reaction in aqueous or aqueous/alcoholic solution in the presence of nonionic surfactants in such a quantity that the resulting solution has a nonionic surfactant content of, preferably, 3 to 20% by weight. Suitable nonionic surfactants for this purpose are, above all, fatty acid polyethylene oxide esters. In addition, it is known from DE-A1 4 305 083 (Henkel KGaA) that the quaternization of amines can be carried out in the absence of water and organic solvents, even in the presence of fatty alcohol polyglycol ethers.
There is a need in the market for concentrated surf
REFERENCES:
patent: 4668422 (1987-05-01), Malik et al.
patent: 5281749 (1994-01-01), Uphues et al.
patent: 5286406 (1994-02-01), Scholz et al.
patent: 5374716 (1994-12-01), Biermann et al.
patent: 5389282 (1995-02-01), Saijo et al.
patent: 5576425 (1996-11-01), Hill et al.
patent: 5578560 (1996-11-01), Giesen et al.
Skin Care Forum, (1992) p. 1.
Seifen-Ole-Fette-Washse, 118, (1992) p. 894.
Seifen-Ole-Fette-Washse, 118, (1992) p. 905.
Rivista Italiana, 56, (1974) p. 567.
"Kosmetische Farbemittel " der Farbstoffkommission der Deutschen Forschungsgemeinschaft, published by Verlag Chemie, Weinheim, 1984, pp. 81 to 106.
Behler Ansgar
Hensen Hermann
Kahre Joerg
Neumann Peter
Seipel Werner
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Millson Jr. Henry E.
Szoke Ernest G.
White Everett
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