DE19648438A1 - Agent for cleaning hard surfaces such as windows, ovens and floors - Google Patents

Abstract

Agent for cleaning of hard surfaces comprises 1-50 wt.%(based on the agent) of alkyl-oligo-glucosides of formula (I): R<1>-Gp (I) R<1> = a 9-11C alkyl residue which is at least partially branched; G = a glucose residue; p = 1.4-2.0.

Description

Field of the invention

The invention relates to means for cleaning hard surfaces with a content of out chose alkyl and / or alkenyl oligoglycosides.

State of the art

Detergents containing alkyl oligoglucosides are already from a variety of prior art documents known. Representing the European Pa Patent Applications EP-A 0 199 765, EP-A 0 210 270, EP-A 0 214 285, EP-A 216 301, EP-A 0 282 863 (Henkel), EP-A 0 572 776 (Hüls), EP-A 0 388 810, EP-A 0 510 870 (Kao) and the International Patent Application WO 92/03582 (R). It is revealed in this However, only the use of linear Alkyloligoglucosiden with a through average degree of polymerization in the range of 1.3 to 1.4.

In the past, however, it has been shown that such funds apply with regard to their technical properties do not always show satisfactory results. So wise glucoside cleaning agents for stubborn dirt defects in the Reini on performance. They are sometimes difficult to thicken, d. H. there are problems that Visko to adjust the product to a range low enough to allow for a low dose but on the other hand is high enough to avoid the product of vertical surfaces drains too quickly. Finally, the foaming power, for example wise in the field of carpet shampoos and oven cleaner, not always sufficient. The The object of the invention has thus been to remedy these problems.  

Description of the invention

The invention relates to agents for cleaning hard surfaces, containing - related to the means - 1 to 50, preferably 1.5 to 15 and in particular 2 to 8 wt .-% alkyl oligoglucosides of the formula (I),

R¹O- [G] _p (I)

in the R¹ for an at least partially branched alkyl radical having 9 to 11 carbon atoms, G is a glucose residue and p is numbers of 1.4 to 2.0, preferably 1.5 to 1.7.

Surprisingly, it has been found that alkyl oligoglucosides based on short-chain Oxo alcohols within a selected range of the degree of polymerization (DP) show better cleaning power than glucosides based on linear fatty alcohols ver of the same chain length and DP's. The products can be easily applied to a user adjust viscosity and deliver even in the presence of strong alkalis amount of stable foam.

Alkyloligoglucoside

Alkyl oligoglucosides are known non-ionic surfactants, which according to the relevant Process of preparative organic chemistry can be obtained. Representative of the extensive literature is here on the writings EP-A1-0 301 298 and WO 90/03977 directed. The index number p in the general formula (I) indicates the degree of oligomerization (DP degree), d. H. the distribution of mono- and oligoglycosides. While p in a gege If the compound always has to be an integer, the value p is for a particular alkyl oligoglycoside an analytically determined arithmetic size, which is usually a fractional Number represents. The alkyl group R¹ can be derived from primary alcohols having 9 to 11 carbon atoms derive atoms. Preferred starting materials are oxo alcohols correspond to one the chain length, the manufacture of 5 to 25 mol% branched species may contain NEN. The preferred starting material for the preparation of the alkyl oligoglucosides is a Oxoalcohol of Shell with the name Dobanol® 91.  

surfactants

The compositions according to the invention may contain, in addition to the glycosides, further anionic, contain nonionic, cationic and / or amphoteric and / or zwitterionic surfactants.

Typical examples of anionic surfactants are alkylbenzenesulfonates, alkanesulfonates, Ole finsulfonates, alkyl ether sulfonates, glycerol ether sulfonates, α-methyl ester sulfonates, sulfofet acids, alkyl sulfates, fatty alcohol ether sulfates, glycerol ether sulfates, hydroxy mixed ether sulfates, Monoglyceride (ether) sulfates, fatty acid amide (ether) sulfates, mono- and dialkyl sulfosuccinates, Mono- and dialkylsulfosuccinamates, sulfotriglycerides, amide soaps, ether carboxylic acids and their salts, fatty acid isethionates, fatty acid sarcosinates, fatty acid taurides, acyl lactylates, acyl tartrates, acylglutamates, acylaspartates, alkyl oligoglucoside sulphates, protein fatty acid condensates (in particular vegetable products based on wheat) and alkyl (ether) phosphates. Unless the anionic surfactants containing polyglycol ether chains, these may be a conventional, before However, preferably have a narrow homolog distribution.

Typical examples of nonionic surfactants are fatty alcohol polyglycol ethers. alkylphenol polyglycol ethers, fatty acid polyglycol esters, fatty acid amide polyglycol ethers, fatty amine polyglycols colether alkoxylated triglycerides, mixed ethers or mixed formals, fatty acid N-alkylgluca mide protein hydrolysates (in particular vegetable products based on wheat), polyolefin acid esters, sugar esters, sorbitan esters, polysorbates and amine oxides. Unless the nonionic Surfactants contain polyglycol ether chains, these can be a conventional, preferably depending but have a narrow homolog distribution.

Typical examples of cationic surfactants are quaternary ammonium compounds and Esterquats, in particular quaternized fatty acid trialkanolamine ester salts. Typical examples for amphoteric or zwitterionic surfactants are alkylbetaines, alkylamidobetaines, amino propionates, aminoglycinates, imidazolinium betaines and sulfobetaines.

The surfactants mentioned are exclusively known compounds. down The structure and production of these substances is an important part of the review For example, J. Falbe (ed.), "Surfactants in Consumer Products", Springer Verlag, Berlin, 1987, pp. 54-124 or J. Falbe (ed.), "Catalysts, Surfactants and Mineral Oil Additives", Thieme Verlag, Stuttgart, 1978, pp. 123-217. The proportion of other surfactants the agents according to the invention can be from 1 to 50 and preferably from 2 to 25% by weight.  

Other auxiliaries and additives

The compositions of the invention may contain other conventional auxiliaries and additives than there For example: liquid builders and sequestering agents such as. Citric acid, Gluconic acid or its alkali metal salts, EDTA and / or NTA, solubilizers such. B. Butylglucoside, toluene, xylene and / or Cumolsulfonat, lower aliphatic alcohols such as z. As ethanol, isopropyl alcohol and / or propylene glycol, fatty acids with 8 to 22nd Carbon atoms such. As coconut or Palinkernfettsäure, dicarboxylic acids such. B. Succinic acid, glutaric acid and / or adipic acid, abrasives such. Quartz flour, Phyllosilicates, thickeners, polymers such as. B. polyethylene glycols with molecular weights in the range of 100,000 to 1,000,000 daltons, alkali bases such. B. caustic soda, potassium hydroxide, Ammonia solution or triethanolamine to set a basic pH and Perfumes and dyes. The proportion of auxiliaries and additives can be 1 to 50 and before preferably from 2 to 25 wt .-% - based on the means - make up.

Industrial Applicability

The compositions of the invention have an advantageous foaming and cleaning power on. They have a sufficient, but not too high viscosity so that a dosage and a drain on the surfaces to be cleaned is easily possible. Typical examples for means that meet this purpose, all-purpose cleaners are sanitary cleaner fenestration niger, abrasives, floor cleaners, carpet shampoos and oven cleaners. Not aqueous content (corresponding to the active substance content) of the means is usually 5 to 75% by weight. For dilute applications, the active substance content is in the range of 5 to 35 and preferably 7 to 25 wt .-%, for concentrates in the range of 35 to 75 and before preferably 50 to 60 wt .-%.  

Examples I. Cleaning performance

The cleaning performance was carried out according to the soap in oils-fats waxes, 112, 371 (1986) be wrote test method against an artificially soiled plastic surface. The Test solutions (pH = 9.4) had the following composition (water to 100% by weight):

oligoglucoside 7.0% by weight C _10/14 fatty alcohol + 8.5 EO 2.0% by weight C _12/14 fatty alcohol + 2 EO sulfate sodium salt 2.0% by weight C _12/18 coconut _fatty acid 0.4% by weight sodium gluconate 1.0% by weight.

As a soiling for the diluted application of the cleaning agent was a mixture from soot, machine oil, grease and low-boiling hydrocarbons. The test area of 26 × 28 cm was evenly mixed with 2 g of the artificial Soiling coated. Subsequently, a plastic sponge with 10 ml Test solution soaked and mechanically on the also with 10 ml of the test solution to be tested moved coated test surface. After ten swipes, the cleaned test was surface under running water and removes loose dirt. The Reini effect, d. H. the whiteness of the thus cleaned plastic surface was opposite a standard (corresponding to 100% emission) determined photometrically. The results are summarized in Table 1. Table 2 contains a number of recipe examples.  

Table 1

cleaning performance

II. Formulation Examples

Table 2

Agent for cleaning hard surfaces

Table 2

Hard Surface Cleaning Agents (cont.)

Claims (4)

An agent for the cleaning of hard surfaces, comprising - based on the means - 1 to 50 wt .-% Alkyloligoglucoside of formula (I), R¹O- [G] _p (I) in the R¹ for an at least partially branched alkyl radical with to 11 carbon atoms, G stands for a glucose residue and p stands for numbers from 1.4 to 2.0. 2. Composition according to claim 1, characterized in that it has a non-aqueous content from 5 to 75 wt .-% have. 3. Composition according to claims 1 and 2, characterized in that they continue anionic, nonionic, cationic and / or amphoteric or zwitterionic surfactants contain. 4. Composition according to claim 3, characterized in that it contains the further surfactants in Amounts of 1 to 50 wt .-% - based on the means - included.