Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – With halogen – nitrogen – oxygen – or phosphorus containing...
Patent
1995-05-04
1997-07-08
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
With halogen, nitrogen, oxygen, or phosphorus containing...
510422, 510427, 510432, 510499, C11D 732, C11D 750
Patent
active
056461054
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
2. Discussion of Related Art
A cleaning disinfectant
This invention relates to a cleaning, water-containing disinfectant based on reaction products of atoms, and carbon atoms, and/or salts thereof with inorganic or organic acids, optionally together with nonionic and/or amphoteric surfactants, complexing agents and organic solvents according to EP 156 275, characterized in that it contains benzyl and/or 2-phenoxyethanol and/or 1-phenoxypropanol as solubilizer.
The preparation and use of composition U are described in EP 156 275. Active-substance combinations containing U are known from WO 91/13965. However, it has been found that the solutions mentioned therein do not always dissolve clearly in water at room temperature either on its own or in conjunction with typical solvents, such as alcohols and glycol ethers, for example ethanol, propanol, isopropanol or butyl diglycol (diethylene glycol monobutyl ether) and separate into layers in the event of prolonged storage. This is attributable to the unfavorable temperature-dependent clear and cloud point of the solutions.
DESCRIPTION OF THE INVENTION
It has now been found that clear cleaning disinfectants can be obtained if, in addition to the usual solvents, benzyl alcohol and/or 2-phenoxyethanol and/or 1-phenoxypropanol is/are used as solubilizers for the composition U. A mixture of benzyl alcohol and 1-phenoxypropanol, more particularly in a quantity ratio of around 1:1, is preferably used.
The quantity of solubilizer in the disinfectant as a whole is about 3 to about 30% by weight and preferably about 7 to about 15% by weight. The ratio by weight of solubilizer to U is about 1.0:6.0 to 1.0:0.05 and preferably of the order of 1:0.5 to 1:0.07.
By using these alcohols as solubilizers, the clear point of the disinfectant solutions in typical solvents could be reduced to temperatures well below 20.degree. C. They remained stable in storage over an observation period of around 6 months.
This favorable result remained intact even when nonionic surfactants, builders and optionally fragrances and/or corrosion inhibitors were added to the solutions.
The composition U is used in quantities of around 5 to 40% by weight and preferably in quantities of around 10 to 25% by weight.
If a cleaning effect is required in addition to the antimicrobial effect, the disinfectants may contain one or more surfactants, preferably from the groups of nonionic surfactants and amphoteric surfactants.
Suitable nonionic surfactants are, for example, alkyl polyglycosides preferably containing 8 to 22 carbon atoms in the alkyl radical, reaction products of 4 to 40 and preferably 4 to 20 mole equivalents of ethylene oxide (EO) and/or propylene oxide (PO) with fatty alcohols, fatty acids, fatty amines, fatty acid amides or alkane sulfonamides, of which the fatty alkyl radicals preferably contain 8 to 22 carbon atoms, and with alkylphenols. The end-capped derivatives of such alkoxylation products, preferably with terminal groups containing 2 to 10 carbon atoms, are also suitable. Addition products of 5 to 16 moles of ethylene oxide with cocofatty alcohols or tallow fatty alcohols, with oleyl alcohol and with mono-, di- or trialkylphenols and with monoalkyl cyclohexanols containing 6 to 14 carbon atoms in the alkyl radicals are of particular interest. It can be of advantage to use the lowest foaming representatives of this group.
Nonionic surfactants of the type in question include, for example, the commercial products Dehypon.RTM. LS 24, LS 36, LS 45, LS 54, LT 24, LT 104, OCP 502 (supplier: Henkel), Dehydol.RTM. LT 30 (supplier: Henkel), Lutensol.RTM. LF 224, LT 30 (supplier: BASF), Triton.RTM. CF 54 and DF 12 (supplier: Rohm & Haas).
The nonionic surfactants are used in quantities of around 3 to 20% by weight and preferably in quantities of around 5 to 10% by weight.
Suitable amphoteric surfactants include derivatives of tertiary aliphatic amines or quaternary aliphatic ammonium compounds, of which the aliphatic radicals may be linear
REFERENCES:
patent: 4396521 (1983-08-01), Borrello
patent: 4652585 (1987-03-01), Gerhardt et al.
patent: 5068064 (1991-11-01), Proietto et al.
patent: 5185145 (1993-02-01), Eggensperger et al.
patent: 5393789 (1995-02-01), Eggensperger et al.
patent: 5403505 (1995-04-01), Hachmann et al.
Friese Carsten
Hachmann Klaus
Delcotto Gregory R.
Grandmaison Real J.
Henkel Ecolab GmbH & Co.
Jaeschke Wayne C.
Lieberman Paul
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