Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Patent
1997-09-15
1998-08-04
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
510501, 510514, 510221, 510223, 510423, 510433, 510434, 510470, 510477, 510475, 510506, C11D 332, C11D 194, C11D 183
Patent
active
057893721
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to surfactant mixtures with improved surface-active properties containing short-chain and long-chain fatty acid-N-alkyl polyhydroxyalkylamides in selected synergistic mixing ratios.
2. Discussion of Related Art
Fatty acid-N-alkyl polyhydroxyalkylamides are nonionic surfactants which may normally be obtained by reductive amination of a reducing sugar with ammonia, an alkylamine or an alkanolamine and subsequent acylation with a fatty acid, a fatty acid alkyl ester or a fatty acid chloride. Particulars of processes for their production can be found in U.S. Pat. No. 1,985,424, U.S. Pat. No. 2,016,962 and U.S. Pat. No. 2,703,798 and in International patent application WO 92/06984. A review of this subject by H. Kelkenberg can be found in Tens. Surf. Det. 25, 8 (1988).
The fatty acid-N-alkyl polyhydroxyalkylamides are preferably derived from reducing sugars containing 5 or 6 carbon atoms, more particularly from glucose. Accordingly, the preferred fatty acid-N-alkyl polyhydroxyalkylamides are fatty acid-N-alkyl glucamides.
Fatty acid-N-alkyl glucamides have been used for some time in manual dishwashing detergents as mild nonionic surfactants with favorable foaming and cleaning power. The use of these substances is the subject of a number of publications. For example, their use as thickeners is known from European patent application EP-A1 0 285 768 (Huls). FR-A 1 580 491 (Henkel) describes water-containing detergent mixtures based on sulfates and/or sulfonates, nonionic surfactants and optionally soaps which contain fatty acid-N-alkyl glucamides as foam regulators.
International patent applications WO 9216153; 6156; 6157; 6158; 6159 and 6160 (Procter & Gamble) describe mixtures of fatty acid-N-alkyl glucamides with anionic surfactants, surfactants of sulfate and/or sulfonate structure, ether carboxylic acids, ether sulfates, methyl ester sulfonates and nonionic surfactants. The use of these substances in various laundry detergents, dishwashing detergents and cleaning compositions is described in International patent applications WO 92/6152; 6154; 6155; 6161; 6162; 6164; 6170; 6171 and 6172 (Procter & Gamble).
Despite this comprehensive prior art, there is still a need for fatty acid-N-alkyl polyhydroxyalkylamides with improved properties, more especially greater foaming power, even in hard water, better wetting times, increased washing power and greater dermatological compatibility.
Accordingly, the problem addressed by the present invention was to provide fatty acid-N-alkyl polyhydroxyalkylamides which would satisfy the required complex property profile.
DESCRIPTION OF THE INVENTION
The present invention relates to surfactant mixtures with improved surface-active properties containing ##STR3## in which R.sup.1 CO is an aliphatic acyl radical containing 6 to 10 carbon atoms, R.sup.2 is hydrogen, an alkyl or hydroxyalkyl radical polyhydroxyalkyl radical containing 3 to 12 carbon atoms and 3 to 10 hydroxyl groups, and b) fatty acid-N-alkyl polyhydroxyalkylamides corresponding to formula ##STR4## in which R.sup.3 CO is an aliphatic acyl radical containing 12 to 22 carbon atoms, R.sup.4 is hydrogen, an alkyl or hydroxyalkyl radical polyhydroxyalkyl radical containing 3 to 12 carbon atoms and 3 to 10 hydroxyl groups,
It has surprisingly been found that short-chain and relatively long-chain fatty acid-N-alkyl polyhydroxyalkylamides, more especially fatty acid-N-alkyl glucamides, synergistically complement one another in regard to their foaming, wetting and washing power and their dermatological compatibility within certain mixing ranges.
As already mentioned, the fatty acid-N-alkyl polyhydroxyalkylamides are known nonionic surfactants which may be obtained by relevant known processes as mentioned above.
The fatty acid-N-alkyl polyhydroxyalkylamides are preferably derived from reducing sugars containing 5 or 6 carbon atoms, more especially from glucose. Accordingly, the preferred fatty acid-N-alkyl polyhydroxyalkylamides are fatty acid-N-al
REFERENCES:
patent: 1985424 (1934-12-01), Piggott
patent: 2016962 (1935-10-01), Flint et al.
patent: 2703798 (1955-03-01), Schwartz
patent: 3424680 (1969-01-01), van Loo et al.
patent: 3424681 (1969-01-01), Stanford
patent: 5009814 (1991-04-01), Kelkenberg et al.
patent: 5376310 (1994-12-01), Cripe et al.
patent: 5545354 (1996-08-01), Ofosu-Asante
Tens.Surf.Det. 25, 8 (1988).
Surfactants in Consumer Products, Springer Verlag, Berlin, 1987, pp. 54-124.
J.Falbe (ed.), Katalysatoren, Tenside und Mineroladditive, Thieme Verlag, Stuttgart, 1978, pp. 123-127.
Kosmetische Farbemittel of the Farbstoffkommission der Deutschen Forschungsgemeinschaft, published by Verlag Chemie, Weinheim, 1984.
DIN 53902.
DIN 53901 (Replaced with ISO 8022).
Fette, Seifen, Anstrichmitt, 74, 163 (1972).
Boyer Charles
Grandmaison Real J.
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Lieberman Paul
LandOfFree
Surfactant mixtures having improved surface-active properties does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surfactant mixtures having improved surface-active properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surfactant mixtures having improved surface-active properties will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1177157