Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2068—Ethers
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/43—Solvents

Definitions

• the present connection relates to a liquid cleaning agent for hard surfaces, in particular for surfaces made of glass and ceramic.
• the cleaning agents for hard surfaces which are customary today are generally aqueous preparations which are either in the form of solutions or suspensions and are offered in liquid or pasty form.
• the main constituents of such agents are surface-active substances, complexing agents for the hardness constituents of water, abrasive substances and organic solvents, the amount of the individual constituents depending on the application can vary within wide limits.
• Detergents which are primarily intended for cleaning glass and ceramic surfaces, are often formulated as solutions of the active substances in a mixture of water and water-soluble organic solvents, primarily lower alcohols and glycol ethers. Examples of such agents can be found in German laid-open specification 22 20 540 and in US Pat. Nos. 3,463,735, 3,882,038 and 3,939,090.
• the cleaning agents In addition to the self-evident requirement for high cleaning performance, there is also the requirement for the simplest and most convenient application of the agents. Often, the desire for the self-acting effect of the funds is expressed, ie the agents are expected to deliver the desired effect even with a single application without further measures. This is before especially when used on smooth surfaces, especially those that can reflect like glass or ceramics, difficult to achieve. As a rule, with today's agents, it is necessary to rinse off the residues of the agents after the actual cleaning cycle or to carefully polish and dry the surfaces in order to avoid visible residues on the smooth surfaces.
• the object of the present invention was to provide an improved agent which is particularly suitable for cleaning glass and ceramic surfaces.
• the invention relates to a liquid cleaning agent for solid surfaces, which contains the following components: 1 to 20% by weight of surfactant from the group consisting of anionic surfactants, nonionic surfactants, amphoteric surfactants and mixtures thereof, 1 to 15% by weight of propylene glycol tert-butyl ether, with the proviso that no more than 50% of this ether can be replaced by other solvents from the group consisting of alcohols with 2 to 3 C atoms, glycol ethers with 4 to 8 C atoms and mixtures thereof can, 0 to 10% by weight solubilizer, 0 to 1% by weight of viscosity regulators, 0 to 5% by weight of complexing agent for alkaline earth ions, 0 to 2% by weight of other auxiliaries and additives and ad 100 wt .-% water.
• surfactant from the group consisting of anionic surfactants, nonionic surfactants, amphoteric surfactants and mixtures thereof
• Another object of the invention is the use of these agents for cleaning hard surfaces, in particular glass and ceramic.
• the agents according to the invention are distinguished by an excellent cleaning action and, in addition, have a particularly pronounced clear drying effect on shiny surfaces. This means that the liquid residues that remain on the surfaces after the cleaning process dry in such a way that practically no solid residues can be seen by the unarmed eye. In this way, the gloss of the surfaces is retained without the need for rinsing or polishing. It is believed that the special properties of the agents are due to the interaction of the propylene glycol tert-butyl ether with the other active ingredients.
• Suitable surfactants for the agents according to the invention are surfactants from the classes of the anionic, the nonionic and also the amphoteric surfactants. Mixtures of anionic and nonionic surfactants are preferably used. The average amount of surfactants is between 1 and 20% by weight, preferably between 2 and 15% by weight and in particular between 3 and 8% by weight, calculated as the sum of all surfactants contained in the compositions.
• Particularly suitable anionic surfactants are alkanesulfonates with 12 to 20 C atoms in the alkyl part, monoalkyl sulfates with 12 to 14 C atoms in the alkyl part and alkyl ether sulfates with 12 to 18 C atoms in the alkyl part and 2 to 6 ethylene oxide units (EO) in the ether part.
• alkanesulfonates with 12 to 20 C atoms in the alkyl part
• monoalkyl sulfates with 12 to 14 C atoms in the alkyl part
• alkyl ether sulfates with 12 to 18 C atoms in the alkyl part and 2 to 6 ethylene oxide units (EO) in the ether part.
• EO ethylene oxide units
• surfactants examples include sodium lauryl ether sulfate with 2 EO, sodium cocoalkyl sulfate and sodium sec-alkane sulfonate with about 15 carbon atoms.
• Alkanesulfonates with 12 to 20 C atoms in the alkyl part and especially alkyl ether sulfates with 12 to 14 C atoms in the alkyl part and 2 to 6 ethylene oxide units (EO) in the ether part have proven to be particularly suitable anionic surfactants.
• the nonionic surfactants used are primarily ethoxylated long-chain alcohols with 12 to 18 carbon atoms in the alkyl part and 5 to 15 ethylene oxide units (EO), ethoxylated alkylphenols with 8 to 10 carbon atoms in the alkyl part and 8 to 14 ethylene oxide units, ethoxylated fatty acid amides with 12 to 18 carbon atoms in the fatty acid part and 2 to 8 ethylene oxide units and long-chain amine oxides with 14 to 20 carbon atoms are used.
• Examples of such surfactants are oleyl-cetyl alcohol with 10 EO, nonylphenol with 10 EO, lauric myristic acid diethanolamide, coconut fatty acid polydiethanolamide and coconut alkyl dimethylamine oxide.
• This component which is particularly important for the invention, is the mono-tertiary butyl ether of 1,2-propylene glycol with the following formula: (CH3) 3-CO-CH2-CH (CH3) -OH
• This ether can be used for the agents of the invention in chemically pure form, but is mostly used in technical quality, which generally has purities of around 95%.
• This solvent is a limited miscible liquid with a boiling point of 151 ° C. In combination with the other ingredients of the agents according to the invention, this ether seems to be responsible for the outstanding clear drying effect of the agents. Its content in the compositions is usually between 1 and 20% by weight, preferably between 3 and 15% by weight.
• propylene glycol tertiary butyl ether is particularly great if it is the only organic solvent contained in the cleaning agents. Its share of the cleaning agents should therefore not be replaced by more than 50%, in particular not more than 30%, by other solvents.
• alcohols with 2 or 3 carbon atoms and other glycol ethers with 4 to 8 carbon atoms are suitable as solvents.
• solubilizers are, for example, short-chain monoalkyl sulfates with 4 to 10 C atoms in the alkyl part, alkylbenzenesulfonates with 1 to 6 C atoms in the alkyl part and urea.
• solubilizers sodium n-octyl sulfate and sodium toluenesulfonate.
• the lower alkylbenzenesulfonates having 1 to 3 carbon atoms in the alkyl chains and urea are preferred.
• the amount of solubilizer in the agents can be up to 10% by weight; as The lower limit of effectiveness is considered to be 0.5% by weight.
• the amount used is preferably between 1 and 5% by weight.
• the cellulose derivatives for example methylhydroxypropyl cellulose and hydroxyethyl cellulose, are particularly preferred.
• the amount of viscosity regulators can be up to 1% by weight; however, sufficient results are often achieved with 0.1% by weight.
• water-soluble complexing agents for alkaline earth ions such as condensed phosphates, polymeric carboxylic acids and low molecular weight organic complexing agents
• low molecular weight water-soluble complexing agents of the type of the polycarboxylic acids, the hydroxycarboxylic acids, the aminopolycarboxylic acids and the polyphosphonic acids are preferably used. These can be used both in the form of the free acids and in the form of water-soluble salts, usually the sodium salts. Nitrilotriacetic acid, citric acid, gluconic acid and their salts are particularly preferred.
• the amount of complexing agents can be up to 8% by weight; amounts between 0.1 and 5% by weight are preferably used.
• the agents according to the invention can contain auxiliaries and additives as are customary in such agents. These include dyes, perfume oils and preservatives.
• the amount of such additives is usually not more than 2% by weight, based on the total agent. The lower limit of use depends on the type of additive and can be up to 0.001% by weight and below, for example, for dyes.
• the amount of auxiliaries and additives is preferably between 0.01 and 1% by weight.
• the agents according to the invention are used in such a way that the agents are first diluted with water, a mixing ratio of 1: 200 to 1:30, in particular 1: 100 to 1:50 (detergent: water) being preferably maintained.
• the surfaces to be treated are then wiped off with this diluted solution, for example with the aid of a sponge or a cloth.
• a further treatment of the surfaces is not necessary because the cleaning solutions dry practically free of fog and do not leave any matting or streaks even on critical, high-gloss surfaces.
• the agent is usually only used for heavy stains. This is followed by the surface cleaning described above with the diluted cleaning solution.
• a cleaning agent according to the invention had the following composition: C16 alkanesulfonate 5.0% by weight Coconut alcohol + 10 EO 3.0% by weight Cumene sulfonate 2.5% by weight Citric acid 0.3% by weight Preservative 0.013% by weight Dye 0.009% by weight Propylene glycol mono-tertiary butyl ether 5.0% by weight Rest of water
• the agent When used in a 5% solution, the agent obtained clean streak-free surfaces with practically no visible residues, even on black tiles and on mirrors without wiping and drying.
• the agent from Example 1 was compared in terms of cleaning effectiveness and clear drying effect with other agents which, with an otherwise identical composition, contained a different water-soluble solvent.
• the cleaning effect of the agents was checked by wiping off a light gray tile which had been soiled with a test soil composed of 60% lime soap, 20% mineral oil and 20% petroleum jelly. In this experiment, too, no rinsing or polishing was carried out. The evaluation was also carried out on a scale between 0 (free of residues) and 10 (strong residues). The table below shows the results:

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Emergency Medicine (AREA)
• Detergent Compositions (AREA)
• Surface Treatment Of Glass (AREA)
• Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

Applications Claiming Priority (2)

Publications (2)

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Cited By (9)

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Citations (5)

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• 1987
  • 1987-04-27 DE DE19873713998 patent/DE3713998A1/de not_active Withdrawn
• 1988
  • 1988-04-18 EP EP88106133A patent/EP0288856A3/fr not_active Withdrawn
  • 1988-04-20 US US07/183,815 patent/US4863629A/en not_active Expired - Fee Related
  • 1988-04-22 PT PT87313A patent/PT87313A/pt unknown
  • 1988-04-22 DK DK220888A patent/DK220888A/da not_active Application Discontinuation
  • 1988-04-27 JP JP63107466A patent/JPS63284300A/ja active Pending

Patent Citations (5)

Non-Patent Citations (1)

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