DD228561A1 - CLEANING AGENTS FOR ENAMELED FLAKES - Google Patents

Abstract

The aim of the invention is a cleaning agent for enamelled surfaces with high self-cleaning effect, high gloss effect, high yield with gentle treatment of the surfaces to be cleaned including rust stain removal, which is dermatologically and toxicologically safe and antistatic dirt repellent and corrosion inhibiting and is thermostable. Using components which can be produced economically and are readily available, an active ingredient concentrate with a p H value of 7 to 10.5 is produced at temperatures of 293 to 333 K by intensive mixing.

Description

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Title of the invention Cleaning agent for enamelled surfaces

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Field of application of the invention

The present invention relates to a means for cleaning and maintaining enamelled surfaces and hard surfaces with a high self-cleaning and gloss effect. The invention can be used in the household for cleaning bathtubs and sanitary facilities.

Characteristic of the known technical solutions

A variety of technical solutions are known for the cleaning of hard surfaces. In DE-OS 2507156 an acidic all-purpose cleaner for ceramics, porcelain and enamel is described, the phosphoric acids, phosphoric acid esters of alcohols, Alkylaminpol.ygl.ykolether as a surfactant and KOH, HaOH and UH-contains. The pH of the detergent is given as about 2.

With this cleaning agent, no gentle cleaning and care can be done, the enamel is attacked during long-term exposure and corrosion problems occur.

A liquid cleaning agent based on anionic and nonionic surfactants, addition products of ethylene oxide and alkanol, corrosion inhibitors, solubilizers and thickeners is shown in DE-OS 301150.

For the production of components, an economically and technically high effort is required. The self-cleaning effect is low. A cleaner for the gentle treatment of hard surfaces is

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in DD-WP 138 782 explained. It contains builders for cleaning based on fatty alcohol ether sulfate, alkyl arylsulfonate, alkylphenyl polyglycol ether and alkali pyrophosphate · The cleaning agent described is manufactured as an aerosol certificate. · The blowing agent used is difluorodichloromethane. The preparation of this propellant is technically and economically, consuming. A removal of rust spots on enamelled surfaces is not completely possible with this cleaning agent. In DD-V / P 145 277 a liquid cleaner for sanitary facilities is presented.

Up to 49% by weight of orthophosphoric acid and 7% by weight of fatty acid polyglycol ester are contained in the cleaning agent, with the phenylstate of polyvinylphenyl being added to increase the viscosity of the cleaning agent. Due to the strongly acidic character of the cleaning agent, the materials to be cleaned are attacked during long-term use *

A cleaning agent having a bleaching and disinfecting effect is explained in DE-GS 2030189. In the composition, water-soluble constituents are used from acidic off-cracking compounds and halogenated diacylglycolurils.

The components are produced by additional technically complex chlorination or bromination. The disadvantage here is that the active substances of the cleaning agent have active chlorine-releasing, health-endangering properties.

DD-WP 124. 193 describes an acidic cleaning agent for glazed ceramic material. The cleaning agent has the following composition:

up to 49% by weight of phosphoric acid, up to 10% by weight of ethoxylated fatty alcohol, up to 2% by weight of ethoxylated polypropylene glycol, up to 2% by weight of dihydrogen phosphate and up to 2% by weight of disodium hydrogen diphosphate.

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The cleaning agent shows corrosive properties when used for a long time.

Object of the invention

The aim of the invention is a cleaning agent for enamelled surfaces with high self-cleaning effect, high gloss, high yield with gentle treatment of the surfaces to be cleaned including rust stain removal, which is dermatologically and toxicologically safe and antistatic, dirt repellent and corrosion inhibiting and is thermostable.

Explanation of the essence of the invention

The invention is based on the problem of producing a dermatologically and toxicologically harmless cleaning agent using economically producible and readily available components which, in a cleaning time of at most 15 seconds, ensures the cleaning of enamelled surfaces with a high self-cleaning effect and high elasticity effect.

The technical object of the invention is achieved by mixing the following components intensively with one another at temperatures of 293 to 333 K to give an active ingredient concentrate with a pH of 7 to 10.5:

10 to 30 measures of isopropanol, if appropriate

mixed with 5 - 50 $ ethanol

0.1 - 1.0 Ma * - # sodium octadecylaulfate and / or 0.05 - 1.0 Ma »- $ S chain length fatty alcohols

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6 to 18 Ma x oligomeric ethylene oxide glycol esters 1 to 10% by weight of an anionic surfactant,

consisting of a mixture of mono- and diesters of

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Phosphoric acid neutralized with KOH or HaOH, wherein the alkyl radicals have a chain length of C ₁ Q- C ^ g, the active content is 32- 34 % and the phosphorus content in the range of 0.8 to 1.6 Ma .-%

0.8 U " -% sodium salts of ethylene tetra-

acetic acid

0.8% by weight of diammonium oxalate 0.8% by weight of citric acid 0.8 Ma · - $ 5 of we in acid - 10% by weight of IJH., - Water for pH adjustment

optionally up to 0.5% by mass of perfume composition having a flowery fresh fragrance, optionally 1-4% by mass of a reducing agent on the

Base of acids of sulfur optionally 0.1-1.0 Ma »-% polymethyl or polydimethyl

siloxanes

Remainder to 100 % demineralized water Hatrium octadecyl sulfate or oligomeric ethylene glycol esters are exchangeable with water-soluble coconut fatty acids esterified with glycerine.

The active ingredient concentrate is filled either in bottles or in aerosol containers.

In the case of filling in aerosol containers, the active ingredient concentrate is applied with a propellant such as isobutane or a mixture of isobutane and propane.

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The invention will be explained in more detail below by way of examples.

Example 1

A detergent with 20 Ma. % Isopropanol 0.5% by mass sodium octadecyl sulfate 12.0 Ma. % of highly oxyethylated alcohol 4.0 Ma .- $ of an anionic surfactant, consisting of a mixture of mono- and diesters of phosphoric acid, neutralized with KOH or ITaOH, wherein the alkyl radicals have a chain length of C ₁ Q-C * g and the active content 32-34 % and the phosphorus content is 1.03 mass%.

0.5 Ma. -% tetrasodium salt of ethylenediaminetetraacetic acid

0.5% by weight of diammonium zalate 62.3% by weight of distilled water 0.2% by weight of perfume component

showed an excellent gloss effect according to standard test methods with an emulsifying time of only 10 seconds »

Damage to the enamelled surfaces did not occur during long-term exposure.

Example 2

The time for emulsification is 8 seconds, whereby an excellent self-cleaning effect occurs when a detergent of the following composition is used: 15 Ma. % Isopropanol and 15% by weight ethanol as alcohol mixture; 0.1 Ma. -% polysiloxanes; 16% by weight of highly oxyethylated alcohol. 10 Ma. -% of an anionic surfactant consisting of a mixture of mono- and diesters of phosphoric acid, neutralized with KOH or UaOH, wherein the alkyl radicals a

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Chain length of Cj ₀ - Cg and the active content 32 - 34 % is with a phosphorus content of 1.4 wt .-%; 0.2 mass% tetrasodium salt of ethylenediaminetetraacetic acid; 0.8 % by weight of diammonium oxalate ; 0.3 Ma .- $ perfume component; Remainder demineralized water to 100 Ma »-%. The Y / irkstoffkonzentrat was applied with iso-butane as a blowing agent in an aerosol container.

Example 3

A very good rust spot removal, with high yield and an emulsifying effect of 6 seconds is achieved when a concentrate of active ingredient composition 10 Ma. % Isopropanol, 2% by weight of ethanol, 1% by weight of fatty alcohol, 6% by weight of highly oxyethylated alcohol, 2% by weight of an anionic surfactant, consisting of a mixture of mono- and diesters of phosphoric acid, neutralized with KOH or HaOH, wherein the alkyl radicals have a chain length of C ₁₀ -C -g, the active content is 32-34 % and the phosphorus content is 0.9 Ma .- #; 0.7 Ma. % Tetrasodium salt of ethylenediaminetetraacetic acid; 0.1 Ma. -% Diammoniumoxalat and 78.2 Ma .- # distilled water with a TEeibmittelgemisch iso butane / propane applied, placed on enamel surfaces. The pH of the Y / irkstoffkonzentrates is 7.2.

Example 4

A cleaning agent for enamelled surfaces has the following composition:

10% by weight of isopropanol; 0.4 mass% of sodium octadecylsulfate; 10% by weight of highly oxyethylated alcohol; 5 Ma. % of an anionic surfactant consisting of a mixture of mono- and diesters of phosphoric acid neutralized with KOH or HaOH, wherein the alkyl radicals have a chain length of CJ ₀ -Cjg, the active content is 32-34 % and the phosphorus content is 1, 03% by mass; 0.25 Ma. -% Tetrana- '''triumsalz of ethylenediaminetetraacetic acid, 0.25 Ma -% diammonium oxalate;. 0.1 Ma _e - # perfume component, 0.9

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Sodium dithionite, remainder: deionato

The components were thoroughly mixed at 333 K, cooled in an aerosol container and charged with isobutane as blowing agent. The interaction effect, determined by standard test methods, was reached after 12 seconds,

Example 5

An emulsification time of 6 seconds was achieved when using a cleaning concentrate according to the following composition:

22% by weight of isopropanol; 2 Ma <> -% ethanol; 0.4% by weight of fatty acid ester; 16% by weight of highly oxyethylated alcohol; 0.45 Mao% of an anionic surfactant consisting of a mixture of mono- and diesters of phosphoric acid neutralized with KOH or UaOE, wherein the alkyl radicals have a chain length of C ^ q - C ₁ r , the active content is 32-34 % and the phosphorus content is 1.03 mass% and 56 mass% water; 0.3 Ma. -% of a mixture of di- and tetrasodium salt of ethylenediaminetetraacetic acid; 0.15 Ma .- # diammonium-salate; 0.2 mass% perfume component, balance deionized water.

The preparation was carried out at 323 K. A propellant mixture of iso-butane / propane was used »

Claims (1)

? Q Q q Q o - wwo * j o invention claims 1 «Enameled surfaces cleaner optionally with perfume composition in liquid form or with isobutane or a mixture of isobutane and propane applied as a spray, characterized in that the cleaning agent R consists of the following components by intensive mixing at temperatures of 293 until 333 K were intensively combined to give an active ingredient concentrate having a pH of 7 to 10.5 isopropanol Hatrium octadecyl sulfate Oligomeric ethylene glycol ester of an anionic surfactant consisting of a mixture of mono- and diesters of phosphoric acid neutralized with KOH or UaOH, wherein the alkyl radicals have a chain length of Cq - C ^, the active content is 32-34 % and the phosphorus content is in the range of 0.8 to 1.6% by mass, 0.1 to 0.8% by mass sodium salts of ethylene tetra-sodium acetic acid 0.1-8.8% by weight of diammonium oxalate
- 10 wt .-% Mio-water for pH adjustment M ^ J optionally 1 to 4% by weight of a reducing agent based on acids of sulfur optionally 0.1-1.0% by weight of polymethyl or polydi- methylsiloxanes Remainder to 100 % demineralized water Detergent according to item 1, characterized in that isopropanol is used in a mixture with 5 to 50 % ethanol thereof. Detergent according to item 1, characterized in that sodium octadecylsulfate is replaced by 0.05 - 1.0% by mass of Pettalkohol of the chain length C -, - C ₂ Q or used in a mixture with this. Detergent according to item 1, characterized in that sodium octadecyl sulfate or the oligomeric ethylene glycol esters are replaced by water-soluble coconut fatty acids which have been esterified with glycerol. 5 · Cleaning agent according to item 1, characterized in that diammonium oxalate is replaced by 0.1-0.8% by mass of citric acid or 0.1-0.8% by weight of tartaric acid or used in combination with citric acid or t-acid. .