FI60233B - TVAETTMEDELKOMPOSITION SOM INNEHAOLLER SEMIPOLARISK NONIONISKT TVAETMETEL OCH JORDALKALIMETALLANIONISTEL TVAETMETELEL - Google Patents

Description

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Patent noddelat VV ^ (51) K ».ik? /}«. Ci.3 c 11 D 1/85 SUOMI — FINLAND (21) P »t« nttlK »k * mu« - P * t «ntftn * eknlng 760015 (22) HtkemlipUvi - AiMfiknlngtdag O6.Ol.76 '(23) AlkupWvl — Glltljhtttdtj 06.01.76 (41) Tullut lulklMktl - Bllvit offwKlIg n7 n „

Patent · and registry-controlled «λ. ,, L Of.Of.7b a-. .__. . , (44) Nlhtlvlkslpenon et al. - “• tent- och registerttyreiten AiwMcm utltgd oeh uti.skrift * n pubitcermd ^ qq (32) (33) (31) Requested« uolkmi · - Begird priocitet q6.01.75 2lt.ll.75 US A (US) 538618, 631 +389 (71) The Procter & Gamble Company, 301 East Sixth Street, Cincinnati,

Ohio, USA (72) David Stanley Lambert, Cincinnati, Ohio, James Allen Hellyer, Milford, Ohio, Robert Mermelstein, Cincinnati, Ohio, USA (71+) Oy Kolster Ab (5! +) Semipolar, The present invention relates to a detergent composition specifically for degreasing, and to a detergent composition having a non-ionic detergent and an alkaline earth metal anionic detergent composition. More specifically, it is directed to a detergent composition comprising a semipolar, nonionic detergent and an alkaline earth metal salt of an anionic detergent.

Detergent compositions containing numerous water-soluble organic detergents or mixtures thereof have been prepared. It is known that certain organic detergents are more effective in removing certain types of dirt than other detergents. For example, anionic detergents are capable of removing carbohydrate and protein stains, while nonionic detergents are particularly suitable for removing grease and oil stains. Numerous detergent mixtures have been tried to find the optimal combination for removing the numerous different stains normally found in soiled articles (see, e.g., U.S. Patents 2,691,636, 3,085,920, 3,177,590, 3,179,599 »3,192,166 and 3,223 61 + 7). showing various organic detergent compositions). However, there is still a need for detergent compositions that are 2,602,333 effective stains, especially for removing grease stains.

In addition, several salts, such as magnesium and calcium chloride and magnesium sulfate, have been proposed for use as additives in detergent compositions to enhance their cleaning performance (see U.S. Patents 2,908,651 and 2 U37,253).

It has now been found that a detergent composition which is particularly effective in removing grease stains can be prepared using a semipolar, nonionic detergent and an alkaline earth metal salt of certain anionic detergents.

The present invention thus relates to a detergent composition which can be used to remove grease stains.

Another object of this invention is to provide a detergent composition comprising a semipolar, nonionic detergent and an anionic detergent.

Still another object of the present invention is a liquid detergent composition comprising a semipolar, nonionic detergent and an alkaline earth metal salt of an anionic detergent, which is particularly effective in removing grease stains.

These and other items are explained in the following presentation.

In this context, all percentages and ratios are by weight unless otherwise indicated.

The present invention is directed to a detergent composition which is particularly effective in removing grease stains, wherein the organic portion of said composition consists essentially of a mixture comprising: a) a semipolar, organic, nonionic detergent selected from the group consisting of l) water-soluble amine oxides having one of 8-28 an alkyl or hydroxyalkyl group containing one carbon atom and two alkyl groups selected from the group consisting of alkyl and hydroxyalkyl groups having 1 to 3 carbon atoms, 2) water-soluble phosphine oxides having one alkyl or hydroxyalkyl group having 8 to 28 carbon atoms and two alkyl groups selected from the group consisting of alkyl and hydroxyalkyl groups having 1 to 3 carbon atoms, 3) water-soluble sulfoxides having one alkyl or hydroxyalkyl group having 8 to 18 carbon atoms and one alkyl group selected from the group consisting of alkyl and hydroxyalkyl groups having 1 to 3 carbon atoms; hydroxy groups and L) mixtures thereof you do not; and h) an alkaline earth metal salt of an anionic detergent, wherein the detergent is selected from the group consisting of 1) linear alkyl benzene sulfonates having 9 to 15 carbon atoms in the alkyl group, 2) alkyl sulfates having 8 to 22 carbon atoms, 3) paraffin sulfonates having 8 to 22 carbon atoms, 3 60233 h) Olefin sulfonates having 8 to 22 carbon atoms, 5) alkyl ether sulfates having 8 to 22 carbon atoms in the alkyl group having 1 to 30 ethylene oxide units, 6) alkyl glyceryl ether sulfonates having 3 to 22 carbon atoms in the alkyl group, and 7) mixtures thereof with a non-ionic, non-ionic the weight ratio of detergent to anionic detergent is 1: 100-1: 2.

Thus, the detergent compositions of this invention contain a water-soluble, semipolar, nonionic detergent and an alkaline earth metal salt of an anionic detergent as the main ingredients. These detergents are presented below.

Semipolar, nonionic detergents useful herein include water-soluble amine oxides, phosphine oxides, and sulfoxides. The amine oxide has one alkyl or hydroxyalkyl group containing 8 to 28, preferably 8 to 16, carbon atoms and two alkyl groups selected from alkyl and hydroxyalkyl groups having 1 to 3 carbon atoms. Examples of these substances are dimethyloctylamine oxide, diethyldecylamine oxide, bis- (2-hydroxyethyl) dodecylamine oxide, dimethyldodecylamine oxide, di-propyltetradecylamine oxide, methylethylhexadecylamine oxide and dimethyladecylamine-2-hydroxyl.

Suitable semipolar, nonionic detergents also include water-soluble phosphine oxides having one alkyl or hydroxyalkyl group having 8 to 28, preferably 8 to 16, carbon atoms and two alkyl groups selected from alkyl and hydroxyalkyl groups having 1 to 3 carbon atoms. Examples of suitable phosphine oxides are dimethyldecylphosphine oxide, dimethyltetradecylphosphine oxide, methylethyltetradecylphosphine oxide, dimethylhexadecylphosphine oxide, diethyl-2-hydroxyoctyldecylphosphine oxide, bis- (2-hydroxyethoxy) ethoxyethoxy

Water-soluble sulfoxide detergents contain one alkyl or hydroxyalkyl group having 8 to 18 carbon atoms, preferably 12 to 16 carbon atoms, and one alkyl group selected from alkyl and hydroxyalkyl groups having 1 to 3 carbon atoms. Examples of these sulfoxides are dodecyl methyl sulfoxide, 2-hydroxyethyltridecyl sulfoxide, hexadecylmethyl sulfoxide, 3-hydroxyoctadecylethyl sulfoxide.

An anionic detergent is an alkaline earth metal salt of an organic anionic detergent. Calcium and magnesium salts are particularly preferred. The anionic detergent salt suitable for use in the present invention is selected from the following group of anionic detergents: 11 60233 1) Alkyl benzene sulfonates in which the alkyl group contains 9 to 15 »preferably 11 to 1 carbon atoms as a straight or branched chain. A particularly preferred linear alkyl benzene sulfonate contains 12 carbon atoms. U.S. Patents 2,220,099 and 1 + 77,383 disclose these detergents.

2) Alkyl sulfates obtained by sulfating an alcohol containing 8 to 22, preferably 12 to 16, carbon atoms. The alkyl sulfates have the formula (ROSO ^ J ^ M, wherein R is a C 8-22 alkyl group and M is an alkaline earth metal.

3) Paraffin sulfonates having 8 to 22, preferably 12 to 16 carbon atoms in the alkyl group.

U) olefin sulfonates containing 8 to 22, preferably 12 to 16, carbon atoms. U.S. Patent 3,332,880 discloses suitable olefin sulfonates.

5) Alkyl ether sulfates derived by ethoxylation of an alcohol containing 8 to 22, preferably 12 to 16, carbon atoms with 1 to 30, preferably 1 to 12, moles of ethylene oxide.

Alkyl ether sulfates have the formula ^ O (C2H10O) xSO3 ^ 2M

wherein R is a C 1 -C 4 alkyl group, x is 1-30 and M is an alkaline earth metal.

6) Alkyl glyceryl ether sulfonates having 8 to 22, preferably 12 to 16, carbon atoms in the alkyl group, and 7) mixtures thereof.

All of the above anionic detergents are commercially available. The acid leakage of the anionic detergent can be converted to an alkaline earth metal salt either before or after mixing with the semipolar, nonionic detergent. Preferably, a source containing magnesium or calcium is added to the detergent mixture under preferred reaction conditions to form the desired salt. Calcium and magnesium chloride, calcium and magnesium sulfate, calcium and magnesium acetate, or calcium and magnesium hydroxide are examples of magnesium and calcium sources. Magnesium sulphate is recommended.

It should be noted that the alkyl group for the above detergents may be derived from either a natural or synthetic source, for example they may be derived from naturally occurring fatty acids, olefins prepared by the Ziegler or OxO process, or petroleum-separated olefins with or without "cracking". Certain examples of alkyl sulfates and alkyl ether sulfates include those derived from Neodol 23, a synthetic alcohol prepared by the Oxo process and containing about h 2 w / w dodecanol and about # 2 w / w tridecanol.

V

5,60233

The ratio of semipolar, nonionic detergent to anionic detergent (based on salt) is between 1: 100-1: 2, preferably 1:15-1: 3. In this case, a very satisfactory degreasing is achieved. The degree of degreasing achieved with the detergent mixture is greater than that achieved with either individual detergent when used alone under normal conditions. The cation of the anionic detergent is also important in that the alkaline earth metal salts of the anionic detergent disclosed herein remove fat better than the alkali metal salts of said anionic detergents used in combination with a semipolar, nonionic detergent.

The detergent compositions of this invention are prepared in powder, granular, tablet, paste or liquid form. Regardless of the form of the composition, they are particularly effective in removing grease stains.

The preferred detergent composition containing the aforementioned detergents is in liquid form. Such liquid compositions are particularly useful for hand washing dirty kitchen utensils and dishes. The liquid composition contains 1 to U5%, preferably 10 to 35%, of a concentrate in the product to be diluted before use and preferably 2 to 15% in products intended for use "as is", the concentrate being a mixture of a semipolar, nonionic and anionic detergent. . The remainder of the product is water. All known additives can be added to the liquid composition. For example, foaming agents, organic solvents, e.g. -C 1-4 alkanols (preferably ethanol), perfumes, colorants and hydrotropes may be added due to their effects.

A particularly preferred liquid detergent composition also contains an alkaline agent to improve the removal of grease stains. Sodium hydroxide, potassium hydroxide and mono, di- or trialkanolamines, said alkanol group containing 1-5, preferably 2-3, carbon atoms, either linear or branched, are suitable bases. Common alkanolamines include mono-, di- and triisopropanolamines and mono-, di- and triethanolamines. Sufficient base is added to the composition to raise its pH above 7.0, but not more than 9.0. The pH of the composition is preferably between 8.0 and 8.5. The degreasing ability of such a composition is increased and, in addition, its degreasing is accelerated. Mono-, di- and triethanolamines and mixtures thereof are preferred alkali sources due to the physical properties of the composition formed, i. the flowability and viscosity of the composition are preferred.

Most preferred is a detergent composition having the following composition: a) 2-6% by weight of a water-soluble amine oxide having one alkyl group having 8 to 16 carbon atoms and two alkyl groups having 1 to 3 carbon atoms, b) 15 to 30% by weight of a water group. -16 carbon atoms of calcium or magnesium alkyl sulphate, preferably magnesium alkyl sulphate, 60233 c) 0-9% by weight of calcium or magnesium alkyl ether sulphate, preferably magnesium alkyl ether sulphate, derived from an alcohol having 12-16 carbon atoms ethoxylated with 1-12 moles of ethylene oxide, d) mono-, di- or triethanolamine or mixtures thereof, preferably monoethanolamine, and e) 0-15% by weight of mono-, di- or triethanolammonium sulphate, preferably monoethanolammonium sulphate, or mixtures thereof, and f) the remainder of water or water and C Mixtures of C 1-4 alkanol, preferably ethanol.

Even more concentrated liquids and / or pastes containing about 1 * 5 to 95% by weight of said mixture of semipolar, nonionic and anionic detergents are also preferred.

The granular or tableted composition of this invention contains 5 to 50 weight percent, preferably 10 to 30 weight percent, of a semipolar, nonionic, and anionic detergent mixture. The remainder of the composition consists of inert filler salts. A suitable inert filler salt is sodium sulfate. Various additives may also be added to the granular or bleached composition, for example, defoamers, colorants, perfumes, anti-re-precipitating agents, and water.

The liquid detergent composition of this invention is preferably prepared by neutralizing the anionic detergent with the aforementioned alkali sources, preferably an alkanolamine, most preferably a monoethanolamine, and then adding a soluble alkaline earth metal salt, preferably magnesium sulfate, to give the final preparation.

The following examples illustrate this invention.

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Compositions Λ-L were determined for their ability to remove grease from a soiled surface. The pre-weighed 25Ο om3 polypropylene * x cup had a 3 car melted beef fat. A 1% aqueous solution of the composition to be formulated was then added to the cup until it was full. The temperature of the aqueous solution was 45 ° C. The cup was emptied after 15 minutes and rinsed with distilled water. The cup was dried and weighed to determine the amount of fat removed. The test results obtained with the above compositions are shown below as a percentage of the fat removed.

Degreasing percent

Composition Λ 10.0

Composition £ 60.0

Composition C 16.0

Composition 1) 64.0

Composition E 30 »0

Composition F 30.0

Composition G 33 * 0

Composition H 52.0

Composition I 2.0

Composition J 61.0

Composition K 6.0

Composition L 64.0

The above results show that the compositions of the invention, i. compositions B, Γ, F, H, J and L remove more fat than the corresponding compositions without magnesium cation.

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The pH values of the compositions A, B, C, D, E and F are 7.0, 7.0, 7 * 0 »7 * 0, 8.5 and 8.5 respectively · In determining the degreasing as described in Example I, the following score·

Degreasing arosenttla

Composition A 9 (0

Composition B 20.0

Composition C 91 (0

Composition D 36 (0

Composition E 49 (0

Composition P 64 (0

The above results show that the degreasing ability of compositions C-F is better than that of compositions A and B. In addition, the results show that the addition of triethanolamine to compositions E and F improves the cleaning efficiency compared to the corresponding compositions D and C ·

Example III

If the compositions C-F of Example II are prepared by replacing amlinloxide with dimethyldodecylphosphine oxide, the same deodorizing properties are obtained.

Example IV

If methyldedecyl sulfoxide is used instead of the amine oxide in the compositions C-F of Example II, substantially the same degreasing properties are obtained.

Example V

The use of monoethanolamine, diethanolamine and sodium and potassium hydroxide instead of triethanolamine in the compositions E and F of Example II does not alter the degreasing properties of the composition.

Example VI

The degreasing ability of the following granular detergent composition is also satisfactory.

Magnesium adodecyl benzene sulfonate 17.0 ^

Biethyltetradecylamine oxide 5.0

Hatri sulphate 50.0 36

Water $ 29.0

Misc. (perfume, dye, etc.) the remaining 12 602 33

Examples Over. VIII .1a IX

The following liquid washer compositions are particularly effective in cleaning, Examples VII and IX are for use in dilution and Example VIII "as is".

Ingredient Percent by weight

VII VIII IX

Magnesium salt of alkyl sulphate with a chain distribution in weight percent of approximately C12 42 C13 54 Cu 3 * and C15 1 # 19.4 6.0 38.8

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Monoethanolaronium sulphate 6.7 2.0 17.4

Monoethanolamine 0.2 0.2 0.4

Water, perfume and other minor substances rest rest

PH of the compositions »6.1.

i

Claims (13)

60233 13 A detergent composition which is particularly effective in removing greasy soils, characterized in that the organic detergent portion of the composition consists essentially of the following mixture: a) a semipolar organic nonionic detergent selected from the group consisting of 1) water-soluble amine oxides having one of 8-28 carbon atoms an alkyl or hydroxyalkyl group containing two and two alkyl groups selected from alkyl and hydroxyalkyl groups having 1 to 3 carbon atoms, 2. water-soluble phosphine oxides having one alkyl or hydroxyalkyl group having 8 to 28 carbon atoms and two alkyl groups selected from alkyl having 1 to 3 carbon atoms and hydroxyalkyl groups, 3) water-soluble sulfoxides having one alkyl or hydroxyalkyl group having 8 to 18 carbon atoms and one alkyl group selected from alkyl and hydroxyalkyl groups having 1 to 3 carbon atoms, and H) mixtures thereof; and b) an alkaline earth metal salt of an anionic detergent, wherein the anionic detergent is selected from the group consisting of 1) linear alkyl benzene sulfonates having 9 to 15 carbon atoms in the alkyl group, 2) alkyl sulfates having 8 to 22 carbon atoms, 3) 8 to 22 carbon atoms paraffin sulfonates, 1+) olefin sulfonates having 8 to 22 carbon atoms, 5) alkyl ether sulfates having 8 to 22 carbon atoms in the alkyl group having 1 to 30 ethylene oxide units, 6) alkyl glyceryl ether sulfonates having 8 to 22 carbon atoms in the alkyl group, and 7) , wherein the weight ratio of semipolar, nonionic detergent to anionic detergent is 1: 100 to 1: 2. Detergent composition according to Claim 1, characterized in that the weight ratio of semipolar, nonionic detergent to anionic detergent is from 1:15 to 1: 3. Detergent composition according to Claim 2, characterized in that the semipolar, nonionic detergent is an amine oxide. 1+. Detergent composition according to claim 1, characterized in that the composition consists essentially of 1 to 15 parts by weight of said mixture, the remainder being water or mixtures of water and C 1 -C 4 alkanols. Detergent composition according to claim b, characterized in that it further contains sufficient base to raise the pH of the composition to a pH above 7.0 but less than 9.0. Detergent composition according to Claim 5, characterized in that the base is monoethanolamine, diethanolamine, triethanolamine or a mixture thereof. Detergent composition according to Claim 6, characterized in that IU 60233 is characterized in that the base is monoethanolamine. Detergent composition according to Claim 6, characterized in that the pH of the composition is 8.0 to 8.5 Detergent composition in solid form according to Claim 1, characterized in that it contains 5 to 50% by weight of the mixture and the remainder is an inert filler salt. Detergent composition in liquid form according to claim 1, characterized in that it essentially contains: (a) 2-6% by weight of a water-soluble amine oxide having one alkyl group having 8 to 16 carbon atoms and two alkyl groups having 1 to 3 carbon atoms. , an alkyl group, (b) a calcium or magnesium alkyl sulfate having 15 to 30 weight percent # 12 to 16 carbon atoms, (c) 0 to 9 weight percent of a magnesium or calcium alkyl ether sulfate derived from an alcohol having 12 to 16 carbon atoms ethoxylated with 1 to 16 carbon atoms. 12 moles of ethylene oxide, (d) 0 to 7% by weight of mono-, di- or triethanolamine or mixtures thereof, (e) 0 to 15% by weight of # mono-, di- or triethanolammonium sulphate or mixtures thereof, and (f) the remainder is water or mixtures of water and C 1 -C 4 alkanol. Detergent composition according to Claim 10, characterized in that b) is magnesium alkyl sulphate, c) is magnesium alkyl ether sulphate, d) is monoethanolamine and e) is monoethanolammonium sulphate. Detergent composition in liquid form according to claim 1, characterized in that the composition consists essentially of 10 to 35% by weight of said mixture and the remainder is water or mixtures of water and ethanol. Detergent composition in liquid form according to claim 1, characterized in that the composition consists essentially of 2 to 15% by weight of said mixture and the remainder is water or mixtures of water and ethanol. 60233 15