CA2315892A1

CA2315892A1 - Deodorizing composition

Info

Publication number: CA2315892A1
Application number: CA 2315892
Authority: CA
Inventors: Hermann Jonke; Daniela Poethkow; Alexander Ditze
Original assignee: Individual
Current assignee: Henkel AG and Co KGaA
Priority date: 1999-08-13
Filing date: 2000-08-14
Publication date: 2001-02-13
Also published as: AU6835900A; DE19937871A1; AR025222A1; WO2001012145A1

Abstract

A composition with a deodorizing effect contains (a) one or metal salts of an unbranched or branched, unsaturated or saturated, mono- or polyhydroxylated fatty acid containing at least 16 carbon atoms and/or a resin acid, except for the alkali metal salts, (b) one or more solubilizers, (c) up to 30% by weight of one or more water-soluble organic solvents and (d) water, forms a product together with a spray dispenser, may be used to deodorize an object, a surface or a room and in a process for deodorizing an object, a surface or a room and may be used as a concentrate and prepared from a concentrate.

Description

DEODORIZING COMPOSITION
Field of the Invention This invention relates to a water-based deodorizing composition, to a product containing the composition, to its use for deodorizing an object or a surface and to a process for deodorizing an object or a surface.
Background of the Invention The zinc salt of ricinoleic acid has been known since the early 1970s as a highly effective deodorizing agent for eliminating unpleasant odors or preventing their formation in the cosmetic field. By contrast, the zinc ricinoleates do not have bactericidal properties. Ricinoleates of other metals and metal salts of relatedhigher hydroxylated fatty acids and even of resin acids, for example abietic acid, except for the alkali metal salts, also have deodorizing properties without ever reaching the effectiveness of zinc ricinoleate.
The effect of zinc ricinoleate is based on odor extinction, i.e chemical binding of the odor-emitting substances so that sensorially they can no longer be perceived, and thus differs in the action principle from the effect of other deodorizing systems, such as the odor-masking perfumes or the odor(osmogen)-destroying biocides. As far as is known at the present time, the odor-emitting substances, so-called osmogens, for example low molecular weight fatty acids, isovaleric acid, mercaptans, hydrogen sulfide, ammonia and thioethers, which are generally good nucleophiles, are complexed by the zinc ricinoleate and are thus removed from sensorial perception. Another important factor so far as the action mechanism is concerned is presumably the hydroxyl group of the ricinoleic acid which can also make the ricinoleate anion - in addition to the carboxylate group -available as a complex ligand.
Most perfumes are based on substantially non-nucleophilic fragrances such as, for example, fragrances containing aliphatic or aldehydic terpene systems and accordingly do not interact with zinc ricinoleate. Accordingly, zinc ricinoleate provides for deodorization without any unwanted interference with any perfume system present.
However, the metal salts of ricinoleic acid and the related higher hydroxylated fatty acids and also abietic acid and other resin acids do not form clear solutions in water, but are merely miscible with water.
Accordingly, known clear formulations containing zinc ricinoleate are made up at least to about one third of organic solvents, such as ethanol, and no more than 60% by weight of water or only very small quantities of zinc ricinoleate and very large quantities of solubilizers or surfactants.
Although a solvent content as high as this is normal in aerosol sprays, it is generally undesirable in other spray products because such products are relatively inflammable and, in Germany, have to be labeled accordingly under the "Gefahrenstoffverordnung (law on hazardous materials)". Unfortunately, labeling as an inflammable material can have an unfavorable effect, for example by deterring a potential user.
On the other hand, an important requirement for spray products for deodorizing rooms or objects or surfaces of textile materials is that they should not leave any significant residues behind. Accordingly, the content of ingredients, such as solubilizers, which do not evaporate like water and the solvents should be as low as possible.
DE 17 92 074 A (Grillo-Werke) which dates back to 1971 discloses for the first time compositions containing zinc ricinoleate as a deodorizing agent of which the deodorizing effect is synergistically supported by addition of salts, for example zinc salts, or esters of other saturated or unsaturated, even-numbered or odd-numbered hydroxylated fatty acids containing 17 or more carbon atoms, for example salts and esters of trihydroxystearic acids.
DE 25 48 344 A1 (Dart lndusfries), which dates back to 1976, discloses the deodorizing effect of metal salts of a hydrolyzed unsaturated fatty acid, more particularly of metal ricinoleates. Metals from group II of the periodic system of elements and the rare earths, such as cerium, lanthanum or neodynium, are preferred. Particular emphasis is placed on zinc ricinoleate.
EO 0 303 212 B1 (Grillo-Werke) discloses hydrolyzed ene adducts and Diels-Alder adducts of dehydrated castor oil fatty acids and malefic anhydride as deodorizing agents and as solubilizers for zinc ricinoleate.
DE 38 08 114 A1 (Grillo-Werke) discloses deodorizing mixtures which contain zinc ricinoleate and optionally the zinc salt of abietic acid and/or other zinc salts of other saturated or unsaturated hydroxylated fatty acids containing 17 or more carbon atoms, partial esters of di- or polyhydroxyalkanes, mono- and disaccharides, polyethylene glycols or alkanolamines with the ene adducts of malefic anhydride with at least monounsaturated carboxylic acids having a chain length of 10 to 25 carbon atoms and an acid number of 10 to 140 and optionally amino and/or amido compounds and which remain clearly dissolved in preparations with water contents of up to 50% by weight.
DE 40 14 055 C2 (Grillo-Werke) discloses deodorizing mixtures which contain zinc ricinoleate and optionally the zinc salt of abietic acid and/or other zinc salts of other saturated or unsaturated hydroxylated fatty acids containing 17 or more carbon atoms, an ethoxylated fatty alcohol with a linear or branched alkyl chain, between 10 and 18 carbon atoms and less than 30 ethylene oxide units per molecule and a tertiary amine and with which it is possible to prepare water-containing deodorants containing up to 60% by weight water, for example clear pump spray solutions containing at least 32.3% by weight ethanol (96%) and no more than 60% by weight water and 2.2% by weight of a deodorizing mixture of 50% by weight zinc ricinoleate, 35% by weight ethoxylated fatty alcohol and 15% by weight tertiary amine. Although the pump spray solutions are clear, they are readily inflammable on account of the high ethanol contents and, in Germany, have to be labelled accordingly which is undesirable for the reasons explained above.
The problem addressed by the present invention was to provide a deodorizing composition in the form of a liquid which would remain clear even with high water contents and low solvent contents.
Summary of the Invention The present invention relates to a deodorizing composition containing (a) one or metal salts of an unbranched or branched, unsaturated or saturated, mono- or polyhydroxylated fatty acid containing at least 16 carbon atoms and/or a resin acid, except for the alkali metal salts, (b) one or more solubilizers, (c) up to 30% by weight of one or more water-soluble organic solvents and (d) water.
The water-based composition according to the invention is a clear solution and is distinguished by a favorable deodorizing effect, high stability in storage and minimal residue formation invisible to the naked eye. The combination according to the invention of deodorizing agent, solubilizer and solvent and optionally complexing agent provides for particularly efficient solubilization or stabilization of the deodorizing agent in the water-based composition. Accordingly, the quantity of non-volatile ingredients required for the clear incorporation of a certain quantity of deodorizing agent can be kept particularly small so that the formation of unwanted residues is minimized. In addition, the composition does not attack hard surfaces or textile surfaces and, in particular, does not damage textile fibers. Another advantage of the composition is its short drying time.
In the context of the teaching of the present invention, the expression "deodorizing effect" is understood to be the reduction or complete eradication of unwanted odors.
Unless otherwise specifically indicated, quantities and contents are expressed in % by weight, based on the composition. In this connection, variously preferred quantity ranges, such as "preferably 0.1 to 10% by weight, more preferably 1 to 5% by weight", simultaneously signify preferred upper and lower limits, i.e. "preferably at least 0.1 % by weight, more preferably at least 1 % by weight but no more than 10% by weight and 5 more particularly no more than 5% by weight" and, accordingly, also mean that the quantity ranges of 0.1 to 5% by weight and 1 to 10% by weight are preferred to 0.1 to 10% by weight.
Substances which also serve. as ingredients of cosmetic preparations may be referred to in the following by their names under the INCI nomenclature (INCI - International Nomenclature of Cosmetic Ingredients). Chemical compounds bear an INCI name in English while vegetable ingredients are all referred to by their Latin names according to Linne, so-called trivial names such as "water", "honey" or "sea salt" also being shown in Latin. The INCI names can be found in the International Cosmetic Ingredient Dictionary and Handbook - 7th Edition (1997) which is published by the Cosmetic, Toiletry and Fragrance Association (CTFA), 1101 17th Street, NW, Suite 300, Washington, DC 20036, USA
and which contains more than 9,000 INCI names and references to more than 37,000 commercial names and technical names, including the associated distributors from more than 31 countries. The International Cosmetic Ingredient Dictionary and Handbook assigns the ingredients to one or more chemical classes (Chemical Classes), for example Polymeric Efhers, and one or more functions (Functions), for example Surfactants -Cleansing Agents, which in turn are explained in detail and to which reference may also be made in the following.

Detailed Description of the Invention Deodorizing a The composition according to the invention contains one or more metal salts of an unbranched or branched, unsaturated or saturated, mono-or polyhydroxylated fatty acid containing at least 16 carbon atoms and/or a resin acid, except for the alkali metal salts, as deodorizing agent(s).
A preferred unbranched or branched, unsaturated or saturated, mono- or polyhydroxylated fatty acid containing at least 16 carbon atoms is ricinoleic acid. A preferred resin acid is abietic acid.
Preferred metals are the transition metals and the lanthanoids, more particularly the transition metals of groups Vllla, Ib and Ilb of the periodic system, such as lanthanum, cerium and neodynium, more preferably cobalt, nickel, copper and zinc and most preferably zinc. Although the cobalt, nickel and copper salts and the zinc salts are similarly effective, the zinc salts are preferred for toxicological reasons.
In one preferred embodiment, therefore, the composition according to the invention contains one or more metal salts of ricinoleic acid and/or abietic acid, preferably zinc ricinoleate and/or zinc abietate, more particularly zinc ricinoleate.
The composition according to the invention contains one or more deodorizing agents in a quantity of normally 0.1 to 20% by weight, preferably 0.5 to 10% by weight, more preferably 1 to 8% by weight, most preferably 1.5 to 6% by weight and, in one most particularly preferred embodiment, 2 to 4% by weight.
In choosing the quantity of deodorizing component, the particular application envisaged should be taken into account because the quantity required for a certain deodorizing effect depends upon the nature of the odors to eradicated. A reasonable quantity can be determined in a simple practical test.

In one embodiment with a particular deodorizing effect, the composition according to the invention contains one or more deodorizing agents, preferably one or more metal salts of ricinoleic acid and/or abietic acid, more preferably zinc ricinoleate and/or zinc abietate and most preferably zinc ricinoleate in a quantity of at least 2% by weight. Although the deodorizing effect is in evidence even with the above-mentioned quantities below 2% by weight, it is sometimes judged to be inadequate by the user.
Solubilizers The composition according to the invention contains one or more solubilizers in a quantity of normally 0.1 to 30% by weight, preferably 0.5 to 20% by weight, more preferably 0.7 to 10% by weight, most preferably 1 to 6% by weight and, in one most particularly preferred embodiment, 2 to 3%
by weight, for example 0.75, 1.5, 2.6 or 5.2% by weight, in order to solubilize the deodorizing agent(s).
Preferred solubilizers are anionic, nonionic, cationic and/or amphoteric or zwitterionic surfactants, more particularly anionic and/or nonionic surfactants with a solubilizing, hydrotropic and/or emulsifying effect, as described for example in International Cosmetic Ingredient Dictionary and Handbook - Seventh Edition under the functions Surfacfants - Solubilizing Agents, Sun'actant - Hydrotropes and Sun'actants -Emulsifying Agents and Sun'actanfs - Cleansing Agents.
In one preferred embodiment, the composition according to the invention contains one or more anionic and/or nonionic surfactants as solubilizer(s).
Preferred nonionic solubilizers are one or more unbranched or branched, saturated or unsaturated C~o_22 alcohols alkoxylated with ethylene oxide (EO) and/or propylene oxide (PO) with a degree of alkoxylation of up to 30, preferably ethoxylated C~o_~$ fatty alcohols with a degree of ethoxylation of less than 30, preferably 1 to 20, more preferably 1 to 12, most preferably 1 to 8 and, in one most particularly preferred embodiment, 2 to 5, for example C12-14 fatty alcohol ethoxylates containing 2, 3 or 4 EO or a mixture of the 02_14 fatty alcohol ethoxylates containing 3 and 4 EO in a ratio by weight of 1:1 or isotridecyl alcohol ethoxylate containing 5, 8 or 12 EO, as described for example in DE 40 14 055 C2 (Grillo-Werke), to which reference is made in this regard and of which the disclosure is hereby included in the present application.
Suitable anionic solubilizers are, for example, the partial esters of dihydroxy or polyhydroxyalkanes, mono- and disaccharides, polyethylene glycols with the ene adducts of malefic anhydride with at least monounsaturated carboxylic acids having a chain length of 10 to 25 carbon atoms and an acid number of 10 to 140 which are described in DE 38 08 114 A1 (Grillo-Werke) and in EP 0 046 070 A (Grillo-Werke), to which reference is made in this regard and of which the disclosures are hereby included in the present application.
Besides an unbranched or branched, saturated or unsaturated, aliphatic or aromatic, alicyclic or cyclic, optionally alkoxylated alkyl group containing 4 to 28, preferably 6 to 20, more preferably 8 to 18, most preferably 10 to 16 and, in one most particularly preferred embodiment, 12 to 14 carbon atoms, preferred anionic solubilizers contain two or more, more particularly, two, anionic acid groups, preferably carboxylate, sulfonate and/or sulfate groups, more particularly a carboxylate group and a sulfate group. Examples of these compounds are the a-sulfofatty acid salts, the acyl glutamates, the monoglyceride disulfates and the alkyl ethers of glycerol Bisulfate and more particularly the monoesterified sulfosucci-nates described in the following.
Particularly preferred anionic solubilizers are the sulfosuccinates, sulfosuccinamates and sulfosuccinamides, more particularly sulfosucci-nates and sulfosuccinamates and most preferably sulfosuccinates. The sulfosuccinates are the salts of the mono- and diesters of sulfosuccinic acid HOOCCH(S03H)CH2COOH while the sulfosuccinamates are understood to be the salts of the monoamides of sulfosuccinic acid and the sulfosuccinamides are understood to be the salts of the diamides of sulfo-succinic acid. A detailed description of these known anionic surfactants is provided by A. Domsch and B. Irrgang in Anionic Surfactants: Organic Chemistry (edited by H.W. Stache; Surfactant Science Series; Volume 56; ISBN 0-8247-9394-2; Marcel Dekker, Inc., New York 1996, pages 501-549 ).
The salts are preferably alkali metal salts, ammonium salts and mono-, di- and trialkanolammonium salts, for example mono-, di- and triethanolammonium salts, more particularly lithium, sodium, potassium and ammonium salts, more preferably sodium and ammonium salts and most preferably sodium salts.
In the sulfosuccinates, one or both carboxyl groups of the sulfosuccinic acid is/are preferably esterified with one or two identical or different unbranched, branched, saturated or unsaturated, acyclic or cyclic, optionally alkoxylated alcohols containing 4 to 22, preferably 6 to 20, more preferably 8 to 18, most preferably 10 to 16 and, on one most particularly preferred embodiment, 12 to 14 carbon atoms. Particular preference is attributed to the esters of unbranched and/or saturated and/or acyclic and/or alkoxylated alcohols, more particularly unbranched saturated fatty alcohols and/or unbranched saturated fatty alcohols alkoxylated with ethylene and/or propylene oxide, preferably ethylene oxide, with a degree of alkoxylation of 1 to 20, preferably 1 to 15, more preferably 1 to 10, most preferably 1 to 6 and, in one most particularly preferred embodiment, 1 to 4. According to the invention, the monoesters are preferred to the diesters.
A particularly preferred sulfosuccinate is sulfosuccinic acid lauryl polyglycol ester disodium salt (lauryl-EO-sulfosuccinate, disodium salt, /NCI Disodium Laureth Sulfosuccinate) which is commercially obtainable, for example as Tego~ Sulfosuccinat F30 (Goldschmidt) with a sulfosuccinate content of 30% by weight.
In the sulfosuccinamates or sulfosuccinamides, one or both carboxyl groups of the sulfosuccinic acid preferably form a carboxylic acid amide 5 with a primary or secondary amine which carries one or two identical or different, unbranched or branched, saturated or unsaturated, acyclic or cyclic, optionally alkoxylated alkyl groups containing 4 to 22, preferably 6 to 20, more preferably 8 to 18, most preferably 10 to 16 and, in one most particularly preferred embodiment, 12 to 14 carbon atoms. Unbranched 10 and/or saturated and/or acyclic alkyl groups, more particularly unbranched saturated fatty alkyl groups, are particularly preferred.
Also suitable are, for example, the following sulfosuccinates and sulfosuccinamates referred to by their INCI names which are described in more detail in International Cosmetic Ingredient Dictionary and Handbook:
Ammonium Dinonyl Sulfosuccinate, Ammonium Lauryl Sulfosuccinate, Diammonium Dimethicone Copolyol Sulfosuccinate, Diammonium Lauramido-MEA Sulfosuccinate, Diammonium Lauryl Sulfosuccinate, Diammonium Oleamido PEG-2 Sulfosuccinate, Diamyl Sodium Sulfosuccinate, Dicapryl Sodium Sulfosuccinate, Dicyclohexyl Sodium Sulfosuccinate, Diheptyl Sodium Sulfosuccinate, Dihexyl Sodium Sulfosuccinate, Diisobutyl Sodium Sulfosuccinate, Dioctyl Sodium Sulfosuccinate, Disodium Cetearyl Sulfosuccinate, Disodium Cocamido ~MEA-Sulfosuccinate, Disodium Cocamido MIPA-Sulfosuccinate, Disodium Cocamido PEG-3 Sulfosuccinate, Disodium Coco-Glucoside Sulfosuccinate, Disodium Cocoyl Butyl Gluceth-10 Sulfosuccinate, Disodium C12-15 Pareth Sulfosuccinate, Disodium Deceth-5 Sulfosuccinate, Disodium Deceth-6 Sulfosuccinate, Disodium Dihydroxyethyl Sulfosuccinylundecylenate, Disodium Dimethicone Copolyol Sulfosuccinate, Disodium Hydrogenated Cottonseed Glyceride Sulfosuccinate, Disodium Isodecyl Sulfosuccinate, Disodium Isostearamido MEA-Sulfosuccinate, Disodium Isostearamido MIPA-Sulfosuccinate, Disodium Isostearyl Sulfosuccinate, Disodium Laneth-5 Sulfosuccinate, Disodium Lauramido MEA-Sulfosuccinate, Disodium Lauramido PEG-2 Sulfosuccinate, Disodium Lauramido PEG-5 Sulfosuccinate, Disodium Laureth-6 Sulfosuccinate, Disodium Laureth-9 Sulfosuccinate, Disodium Laureth-12 Sulfosuccinate, Disodium Lauryl Sulfosuccinate, Disodium Myristamido MEA-Sulfosuccinate, Disodium Nonoxynol-10 Sulfosuccinate, Disodium Oleamido MEA-Sulfosuccinate, Disodium Oleamido MIPA-Sulfosuccinate, Disodium Oleamido PEG-2 Sulfosuccinate, Disodium Oleth-3 Sulfosuccinate, Disodium Oleyl Sulfosuccinate, Disodium Palmitamido PEG-2 Sulfosuccinate, Disodium Palmitoleamido PEG-2 Sulfosuccinate, Disodium PEG-4 Cocamido MIPA-Sulfosuccinate, Disodium PEG-5 Laurylcitrate Sulfosuccinate, Disodium PEG-8 Palm Glycerides Sulfosuccinate, Disodium Ricinoleamido MEA-Sulfosuccinate, Disodium Sitostereth-14 Sulfosuccinate, Disodium Stearamido MEA-Sulfosuccinate, Disodium Stearyl Sulfosuccinamate, Disodium Stearyl Sulfosuccinate, Disodium Tallamido MEA-Sulfosuccinate, Disodium Tallowamido MEA-Sulfosuccinate, Disodium Tallow Sulfosuccinamate, Disodium Tridecylsulfosuccinate, Disodium Undecylenamido MEA-Sulfosuccinate, Disodium Undecylenamido PEG-2 Sulfosuccinate, Disodium Wheat Germamido MEA-Sulfosuccinate, Disodium Wheat Germamido PEG-2 Sulfosuccinate, Di-TEA-Oleamido PEG-2 Sulfosuccinate, Ditridecyl Sodium Sulfosuccinate, Sodium Bisglycol Ricinosulfosuccinate, Sodium/MEA Laureth-2 Sulfosuccinate and Tetrasodium Dicarboxyethyl Stearyl Sulfosuccinamate. Another suitable sulfosuccinamate is disodium-Cps-~s-alkoxypropylene sulfosuccinamate.
In one preferred embodiment, the composition according to the invention contains one or more sulfosuccinates, sulfosuccinamates and/or sulfosuccinamides, preferably sulfosuccinates and/or sulfosuccinamates, more preferably sulfosuccinates, in a quantity of normally 0.05 to 15% by weight, preferably 0.1 to 10% by weight, more preferably 0.3 to 6% by weight, most preferably 0.5 to 3% by weight and, in one most particularly preferred embodiment, 0.7 to 2% by weight, for example 0.75 or 1.5% by weight, either as sole solubilizing component or in combination with one or more other solubilizers.
In one particular embodiment, the composition according to the invention contains one or more anionic surfactants and one or more nonionic surfactants as solubilizers, preferably in a ratio by weight of the anionic surfactants to the nonionic surfactants of 10:1 to 1:10, preferably 3:1 to 1:5, more preferably 1:1 to 1:3 and most preferably 1:1.5 to 1:2, the anionic and nonionic surfactants mentioned above, more particularly the sulfosuccinates, above the all the monoesters, and the alkoxylated C~o_22 alcohols preferably being combined with one another.
In another preferred embodiment, the composition according to the invention contains one or more solubilizers and one or more deodorizing agents in a ratio by weight of not more than 14:1, preferably 10:1 to 1:10, more preferably 5:1 to 1:5, most preferably 2:1 to 1:2 and, in one most particularly preferred embodiment, 1.5:1 to 1:1.5, for example 1.3:1, 1.1:1, 1:1 or 1:1.1.
Solvents The composition according to the invention contains one or more water-soluble organic solvents. Water-soluble in this context means that the organic solvent is soluble in the quantity present in the water-based composition according to the invention.
In one preferred embodiment, the composition according to the invention contains one or more solvents from the group consisting of C»
monoalcohols, C2_6 glycols, C3_~2 glycol ethers and glycerol, more particu-larly ethanol. The C3_~2 glycol ethers according to the invention contain alkyl or alkenyl groups with less than 10 carbon atoms, preferably up to 8, more preferably up to 6, most preferably from 1 to 4 and, in one most particularly preferred embodiment, 2 fo 3 carbon atoms.
Preferred C~_4 monoalcohols are ethanol, n-propanol, isopropanol and tert.butanol. Preferred C2_6 glycols are ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, pentane-1,5-diol, neopentyl glycol and hexane-1,6-diol, more particularly ethylene glycol and 1,2-propylene glycol.
Preferred C3_~2 glycol ethers are di-, tri-, tetra- and pentaethylene glycol, di-, tri- and tetrapropylene glycol, propylene glycol monotert.butyl ether and propylene glycol monoethyl ether and the solvents referred to by their INCI
names of Butoxydiglycol, Butoxyethanol, Butoxyisopropanol, Butoxypropanol, Butyloctanol, Ethoxydiglycol, Ethoxyethanol, Ethyl Hexanediol, Isobutoxypropanol, Isopentyldiol, 3-Methoxybutanol, Methoxyethanol, Methoxyisopropanol and Methoxymethylbutanol.
Particularly preferred solvents are ethanol, 1,2-propylene glycol and dipropylene glycol and mixtures thereof, more particularly ethanol.
The composition according to the invention contains one or more solvents in a quantity of normally 0.1 to 30% by weight, preferably 1 to 25%
by weight, more preferably 2 to 20% by weight, most preferably 3 to 15%
by weight and, in one most particularly preferred embodiment, 5 to 12% by weight, for example 5.3 or 10.6% by weight.
Water In one preferred embodiment, the composition according to the invention contains water in a quantity of more than 60% by weight, preferably 70 to 99.7% by weight, more preferably 80 to 95% by weight and most preferably 85 to 90% by weight. However, in one embodiment as a concentrate to be diluted with water before use, the composition according to the invention may also contain water in a quantity of 60% by weight or less.

Complexingi agents In one preferred embodiment, the composition according to the invention additionally contains one or more complexing agents.
Complexing agents (INCI Chelating Agents), also known as sequestering agents, are ingredients which are capable of complexing and inactivating metal ions in order to prevent their adverse effects on the stability or the appearance of the composition, for example clouding. On the one hand, it is important to complex the calcium and magnesium ions responsible for water hardness which are incompatible with many ingredients. The complexing of the ions of heavy metals, such as iron or copper, delays the oxidative decomposition of the final composition.
Suitable complexing/sequestering agents are, for example, the following complexing/sequestering agents referred to by their INCI names which are described in more detail in the International Cosmetic Ingredient Dictionary and Handbook: Aminotrimethylene Phosphonic Acid, Beta Alanine Diacetic Acid, Calcium Disodium EDTA, Citric Acid, Cyclodextrin, Cyclohexanediamine Tetraacetic Acid, Diammonium Citrate, Diammonium EDTA, Diethylenetriamine Pentamethylene Phosphonic Acid, Dipotassium EDTA, Disodium Azacycloheptane Diphosphonate, Disodium EDTA, Disodium Pyrophosphate, EDTA, Etidronic Acid, Galactaric Acid, Gluconic Acid, Glucuronic Acid, HEDTA, Hydroxypropyl Cyclodextrin, Methyl Cyclodextrin, Pentapotassium Triphosphate, Pentasodium Aminotrimethylene Phosphonate, Pentasodium Ethylenediamine Tetramethylene Phosphonate, Pentasodium Pentetate, Pentasodium Triphosphate, Pentetic Acid, Phytic Acid, Potassium Citrate, Potassium EDTMP, Potassium Gluconate, Potassium Polyphosphate, Potassium Trisphosphonomethylamine Oxide, Ribonic Acid, Sodium Chitosan Methylene Phosphonate, Sodium Citrate, Sodium Diethylenetriamine Pentamethylene Phosphonate, Sodium Dihydroxyethylglycinate, Sodium EDTMP, Sodium Gluceptate, Sodium Gluconate, Sodium Glycereth-1 Polyphosphate, Sodium Hexametaphosphate, Sodium Metaphosphate, Sodium Metasilicate, Sodium Phytate, Sodium Polydimethylglycinophenolsulfonate, Sodium Trimetaphosphate, TEA-EDTA, TEA-Polyphosphate, Tetrahydroxyethyl Ethylenediamine, 5 Tetrahydroxypropyl Ethylenediamine, Tetrapotassium Etidronate, Tetrapotassium Pyrophosphate, Tetrasodium EDTA, Tetrasodium Etidronate, Tetrasodium Pyrophosphate, Tripotassium EDTA, Trisodium Dicarboxymethyl Alaninate, Trisodium EDTA, Trisodium HEDTA, Trisodium NTA and Trisodium Phosphate.
10 Preferred complexing/sequestering agents are tertiary amines, more particularly tertiary alkanolamines (aminoalcohols). The alkanolamines contain both amino groups and also hydroxy and/or ether groups as functional groups. Particularly preferred tertiary alkanolamines are triethan-olamine and tetra-2-hydroxypropyl ethylenediamine (N,N,N',N'-tetrakis-(2-15 hydroxypropyl)-ethylenediamine). Particularly preferred combinations of tertiary amines with zinc ricinoleate and one or more ethoxylated fatty alcohols as nonionic solubilizers and optionally solvents are described in DE 40 055 C2 (Grillo-Werke), to which reference is made in this regard and of which the disclosure is hereby included in the present application.
Another preferred complexing/sequestering agent is etidronic acid (1-hydroxyethylidene-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid, HEDP, acetophosphonic acid, INCI Etidronic Acid), including its salts.
Besides etidronic acid, citric acid is a particularly preferred complexing/sequestering agent for the purposes of the invention. Citric acid is not only distinguished by excellent complexing/sequestering properties, but is also particularly kind to or compatible with the skin. Many of the complexing/sequestering agents normally used have an irritating or reddening effect on the skin.

In one preferred embodiment, therefore, the composition according to the invention contains citric acid and/or one or more of its salts as complexing/sequestering agent.
In one particular embodiment, the composition according to the invention contains a complexing/sequestering agent combination of one or more tertiary amines and one or more other complexing/sequestering agents, preferably one or more complexing/sequestering acids and/or salts thereof, more particularly of triethanolamine and/or tetra-2-hydroxypropyl ethylenediamine and citric acid and/or one or more of their salts and etidronic acid and/or one or more of its salts.
The composition according to the invention contains complexing/
chelating agents in a quantity of normally 0 to 20% by weight, preferably 0.1 to 15% by weight, more preferably 0.5 to 10% by weight, most preferably 1 to 8% by weight and, in one most particularly preferred embodiment, 1.5 to 6% by weight, for example 1.5, 2.1, 3 or 4.2% by weight.
pH value The pH of the composition according to the invention is adjusted to a value of normally 2 to 12, preferably 4 to 11, more preferably 5 to 10, most preferably 6 to 9.5 and, in one most particularly preferred embodiment, 7 to 9, for example 8 or 8.3.
Any acidic or basic or buffering pH regulators (/NCI pH Adjusters) neutral in both odor and color may be used to adjust the pH value.
Acidic complexing/sequestering agents are preferably used as the acidic pH regulators.
Preferred basic pH regulators are the alkali metal hydroxides and alkaline earth metal hydroxides, particularly the alkali metal hydroxides, among which sodium hydroxide and potassium hydroxide are particularly preferred, potassium hydroxide being most particularly preferred.

Auxiliaries and additives The composition according to the invention may additionally contain one or more typical auxiliaries and additives, more particularly from the group of perfumes, dyes, antimicrobial agents, including antibacterial agents and preservatives, antistatic agents and insect and moth repellents.
The auxiliaries and additives mentioned are described in more detail, for example, in WO 96/04940 (Procter & Gamble) and the literature cited therein, to which reference is made in this regard and of which the disclosures are hereby included in the present application. So far as the qualitative and quantitative choice of the auxiliaries and additives - and the above-described ingredients - is concerned, it is important to ensure that they are sufficiently soluble in the composition according to the invention and show sufficiently low residue formation.
In one preferred embodiment, the composition according to the invention contains one or more perfumes in a quantity of normally 0.01 to 5% by weight, preferably 0.05 to 2% by weight, more preferably 0.1 to 1.5%
by weight, most preferably 0.2 to 1 % by weight and, in one most particu-larly preferred embodiment, 0.3 to 0.6% by weight. By virtue of its odor-masking effect, the perfume enhances the deodorizing effect of the composition according to the invention in addition to partial or complete odor eradication by the deodorizing agent. An advantage in this regard is the inertness of the deodorizing component according to the invention, particularly the zinc ricinoleate, to most perfumes so that the deodorizing agent does not bind the perfume, nor do the two components deactivate one another and nor is the perfume destroyed by the deodorizing agent.
Dyes may be used in the composition according to the invention, the quantity in which one or more dyes is/are used having to be so small that, after application of the composition, no visible residues are left behind.
However, the composition according to the invention is preferably free from dyes.

Since the deodorizing agents according to the invention have little or - like the zinc ricinoleate for example - no antimicrobial, antibacterial or preserving effect, the composition according to the invention may contain one or more antimicrobial agents or preservatives in a quantity of normally 0.0001 to 3% by weight, preferably 0.0001 to 2% by weight, more preferably 0.0002 to 1 % by weight, most preferably 0.0002 to 0.2% by weight and, in one most particularly preferred embodiment, 0.0003 to 0.1 by weight. Antimicrobial or antibacterial agents and preservatives envisaged in accordance with the invention include alcohols, aldehydes, antimicrobial acids, carboxylic acid esters, acid amides, phenols, phenol derivatives, diphenyls, Biphenyl alkanes, urea derivatives, oxygen and nitrogen acetals and formats, benzamidines, substituted isothiazoles and hydrogenated isothiazole derivatives, such as isothiazolines (dihydroiso-thiazoles) and isothiazolidines, phthalimide derivatives, pyridine derivatives, antimicrobial surface-active compounds, such as antimicrobial quaternary surface-active compounds, guanidines, antimicrobial amphoteric com-pounds, quinolines, 1,2-dibromo-2,4-dicyanobutane, iodo-2-propynyl butyl carbamate, iodine, iodophors and peroxides, for example phenoxyethanol, undecylenic acid, salicylic acid, benzoic acid, 2-benzyl-4-chlorophenol, 2,2'-methylene-bis-(6-bromo-4-chlorophenol), 2,4,4'-trichloro-2'-hydroxydiphenyl ether, N-(4-chlorophenyl)-N-(3,4-dichlorophenyl)-urea, N,N'-(1,10-decane-diyldi-1-pyridinyl-4-ylidene)-bis-(1-octaneamine)-dihydrochloride, N,N'-bis-(4-chlorophenyl)-3,12-diimino-2,4,11,13-tetraazatetradecane diimidoamide and semiacetal isothazolinone preparations, such as a chloro-2-methyl-3(2H)-isothiazolone-2-methyl-3(2H)-isothiazolone-1,2-ethanediol-bis-(oxy)-bis-methanol-N,N'-dimethylol urea (obtainable under the name of Bodoxin~
from Bode Chemie). According to the invention, particularly preferred antibacterial agents are hydroxymethyl glycine, more particularly in the form of the sodium salt (Integra~ 44), benzyl alcohol, 2-biphenylol and/or salts thereof. Mixtures of at least two antimicrobial agents may also be used, for example benzyl alcohol and 2-biphenylol in quantities of 0.1 to 1 % by weight (in total), preferably in quantities of 0.2 to 0.6% by weight, ratios by weight of benzyl alcohol to biphenol of 1.5:1 to 1:2 and more particularly 1:1 to 1:1.5 being particularly preferred. Hydroxymethyl glycine in the form of the sodium salt is also preferably used in quantities of 0.2 to 1.5% by weight and more preferably in quantities of 0.5 to 1 % by weight.
Antimicrobial agents and preservatives are described in more detail, for example, by K.H. Wallhaul3er in "Praxis der Sterilisation, Desinfektion - Konservierung : Keimidentifizierung - Betriebshygiene"
(5th Edition, StuttgartJNew York, Thieme 1995). In general, smaller quantities are required for antimicrobial activity than for antibacterial activity.
In one advantageous embodiment, the compositions according to the invention contain polymers, preferably polycarboxylates, which embrittle any residues remaining after drying of the compositions according to the invention. By virtue of their brittleness, residues formed in this way can be removed very easily both from textile materials, for example by shaking or brushing out, and from hard surfaces. Another advantageous effect of adding polymer, preferably polycarboxylate, lies in the resulting transparency of any residues left behind. The unwanted residues possibly present after drying of the composition are less noticeable by virtue of their transparency and can hardly be seen, particularly on hard surfaces, for example mirrors or glass surfaces. The composition according to the invention may contain the polymers, preferably polycarboxylates, in a quantity of normally 0.0001 to 20% by weight, preferably 1 to 15% by weight and more preferably 3 to 10% by weight.
Product The composition according to the invention is sprayable and may therefore be used in a spray dispenser.

Accordingly, the present invention also relates to a product containing a composition according to the invention and a spray dispenser.
The spray dispenser is preferably a hand-activated spray dispenser selected in particular from the group consisting of aerosol spray 5 dispensers, spray dispensers which build up pressure on their own, pump spray dispensers and trigger spray dispensers, more particularly pump spray dispensers and trigger spray dispensers with a container of transparent polyethylene or polyethylene terephthalate.
Spray dispensers are described in more detail in WO 96/04940 10 (Procter & Gamble) and the US patents cited therein on the subject of spray dispensers, to which reference is made in this regard and of which the disclosures are hereby included in the present application.
Use 15 The present invention also relates to the use of a composition according to the invention, preferably using a product according to the invention, for deodorizing an object, a surface or a room, preferably textile fabrics, household surfaces, shoes, garbage bins, recycling containers, air, relatively large domestic appliances, cat litter, domestic animals, sleeping 20 places for domestic animals, more particularly articles of clothing, loose and fitted carpets, curtains, upholstery, bed linen, tents, sleeping bags, car seats and carpets, fabric interior trim of motor cars, bar surfaces, walls, floors, bathroom surfaces and kitchen surfaces.
Relatively large domestic appliances are, for example, refrigerators, deep freeze cabinets, washing machines, dishwashing machines, tumble dryers, ovens and microwaves.
Process The present invention also relates to a process for deodorizing an object, a surface or a room in which an effective quantity of a composition according to the invention is distributed - preferably using a product according to the invention - on and/or in the object, on the surface or in the room, preferably textile fabrics, household surfaces, shoes, garbage bins, recycling containers, air, relatively large domestic appliances, cat litter, domestic animals, sleeping places for domestic animals, more particularly articles of clothing, loose and fitted carpets, curtains, upholstery, bed linen, tents, sleeping bags, car seats and carpets, fabric interior trim of motor cars, bar surfaces, walls, floors, bathroom surfaces and kitchen surfaces, fabrics and shoes preferably not being sprayed to saturation and the composition hardly being visible after drying on the object or the surface.
An effective quantity in the present context is understood to be a quantity which reduces or completely eradicates the unwanted odors.
In one preferred embodiment of the process according to the invention, the composition according to the invention is sprayed - more particularly using a product according to the invention - in the room and/or onto and/or into the object or onto the surface, more particularly from a distance of 10 to 100 cm, preferably 20 to 50 cm, more preferably 25 to 40 cm and most preferably about 30 cm.
Concentrate The composition according to the invention may be made available for the product according to the invention, the use according to the invention and the process according to the invention both in ready-to-use concentrated form and as a concentrate which is diluted with water before use, preferably in a certain ratio by volume of water to composition of 1:1 to 6:1, preferably 1:1 to 3:1, more preferably 1:1 to 2:1 and most preferably 1:1. A concentrate differs in its composition from the ready-to-use concentrated or diluted form solely in the lower water content for the same absolute quantity (not relative quantity in % by weight) of the other ingredients.

Accordingly, the present invention also relates to the use of the composition according to the invention as a concentrate to be diluted with water to prepare a ready-to-use concentrated composition.
Finally, the present invention relates to a process for the production of a composition according to the invention by dilution of a concentrate with wate r.
Examples Compositions according to the invention are, for example, E1 and E2 of which the partiular composition and pH value are shown in Table 1.
Table 1 Composition in % by weight E1 E2 Zinc ricinoleate, based on active 2 4 substance~a~

Lauryl-EO-sulfosuccinate, disodium 0.75 1.5 salt, based on active substance~b~

Etidronic acid 1.5 3 Ethanol (96%) 5.5 11 Potassium hydroxide 1.35 2.7 Perfume 0.30 0.60 Water, deionized to 100 to 100 pH value 8.0 8.3 Zinc ricinoleate was used in the form of the commercial product Tego~
Sorb Conc 50 (Goldschmidt) which contains 50% by weight zinc ricinoleate and also solubilizers and at most 5% by weight water Tego~ Sulfosuccinat F 30 (Goldschmidt) E1 is a ready-to-use spray product while E2 is a concentrate which has to be diluted with water before use in a spray bottle in a ratio by weight of 1:1. Both compositions are sprayable, colorless, clear, transparent homogeneous liquids in which the zinc ricinoleate is completely dissolved.
The ratio by weight of the sum of the quantity of non-volatile ingredients present for clear incorporation of the zinc ricinoleate, which include neither water nor ethanol nor perfume, to the quantity of zinc ricinoleate is only about 2.6:1.
Destruction of tobacco odor The deodorizing effect of composition E1 according to the invention was tested on cigarette smoke by comparison with water and a commercial product C1 containing 2% by weight cyclodextrin.
To this end, two cigarettes were lit and deposited in a fireproof open vessel in a closed carpeted cubicle with a floor area of about 1 m2 and a height of about 2 m. About 3 minutes after the cigarettes had burnt down completely and gone out, 14.4 ml of composition E1 according to the invention were sprayed onto the carpet in 12 squirts from a spray bottle with a stroke of 1.2 ml per squirt held at a distance of about 0.5 m from the carpet. At intervals of 10, 30 and 60 minutes after spraying, 24 housewives sniffed the cubicle through a small closable opening and evaluated the deodorant effect on a scale of 1 (cigarette odor unchanged) to 6 (cigarette odor no longer noticeable), a higher evaluation signifying a better deodorizing effect. The same procedure was carried out simultaneously in another two cubicles using water and the product C1. A fourth cubicle in which two cigarettes had also been left to burn out, but which were not subsequently subjected to any deodorizing treatment served as reference.
The average evaluations are set out in Table 2 below.

Table 2 Time [mins.] E1 V1 Water 5.4 4.6 2.9 30 4.7 3.9 2.2 60 4.3 3.7 1.8 Water itself has a significant deodorizing effect. By contrast, a deodorizing agent, such as cyclodextrin or the zinc ricinoleate according to the invention, produces a distinct improvement in the deodorizing effect. In addition, the deodorizing effect of composition E1 according to the invention based on zinc ricinoleate is clearly superior to that of the comparison composition C1 based on cyclodextrin.
Odor eradication Two 30 cm x 30 cm terry cloths were exposed to cigarette smoke as described above. The cloths were then sprayed with 12 ml of composition 5 E1 according to the invention and with 12 ml of water from a distance of about 30 cm.
After 30 minutes, the terry cloth treated with composition E1 according to the invention had a neutral odor while the cloth treated with water still had a smell of cigarette smoke. Composition E1 according to the 10 invention was able to eradicate the odor completely.
Stressing of textile fibers In addition, the stressing of textile fibers by treatment with composition E1 according to the invention was investigated. To this end, a mixture of various colored cotton textiles made up in different ways, including inter alia both woven and knitted textiles, such as shirts and T
shirts, were treated over a certain area with 2.4 ml of composition E1 according to the invention and then washed with a commercial detergent in a commercially available washing machine. This treatment was carried out in all 30 times with two identical textile mixtures, one being washed solely with a color detergent with no bleach or optical brightener and the other 5 being washed solely with a heavy-duty detergent containing bleach and optical brighteners.
After the 30 treatment cycles, there were no visible differences between the treated areas and the untreated remainder of the textiles; in particular, there were no changes in color nor any fiber or fabric damage.
10 Accordingly, the compositions according to the invention do not produce any unwanted changes of color or fiber or fabric damage in the treated textiles.
Residue behavior 15 To test residue behavior, the various textiles (mixture as described above) were sprayed with 1.2 ml of composition E1 according to the invention from a distance of 30 cm and then left to dry. In no case were any visible residues subsequently found; above all there were no rings or patches to be seen.
Drying rate Finally, the drying rate was investigated. To this end, composition E1 according to the invention was sprayed onto a 30 cm x 30 cm terry cloth in a quantity of 12 ml from a distance of 30 cm. At a room temperature of 25°C, the terry cloth was dry after 20 minutes. If the ethanol was omitted from E1, the drying time under the same conditions was 40 minutes.
Accordingly, composition E1 according to the invention is also distinguished by a high drying rate.

Further Examples Further compositions according to the invention are E3 and E4 of which the particular composition is shown in Table 3. The pH is adjusted to a value of 8.
Table 3 Composition in % by weight E3 E4 Zinc ricinoleate 2 2 Laureth-3 (INCI; Dehydol~ LS 3 of 1.4 1.4 Henkel) Tetra-2-hydroxypropyl ethylenediamine0.6 -Triethanolamine - 0.6 Lauryl-EO-sulfosuccinate, disodium 0.75 0.75 salt, based on active substance~a~

Etidronic acid 1.5 1.5 Ethanol (86%) 5.5 5.5 Potassium hydroxide 1.35 1.35 Perfume 0.30 0.30 Water, deionized to 100 to 100 ~a~ Tego~ Sulfosuccinaf F 30 (Goldschmidt)

Claims

1. A deodorizing composition comprising (a) one or metal salts of an unbranched or branched, unsaturated or saturated, mono- or polyhydroxylated fatty acid comprising at least 16 carbon atoms and/or a resin acid, except for the alkali metal salts, (b) one or more solubilizers, (c) up to 30% by weight of one or more water-soluble organic solvents and (d) water.

2. A composition as claimed in claim 1, wherein there is present one or more metal salts of ricinoleic acid and/or abietic acid.

3. A composition as claimed in claim 2, wherein there is present zinc ricinoleate and/or zinc abietate.

4. A composition as claimed in claim 2, wherein there is present zinc ricinoleate.

5. A composition as claimed in any of claims 1 to 4, wherein there is present one or more anionic surfactants.

6. A composition as claimed in claim 5, wherein one or more sulfosuccinates, sulfosuccinamates and/or sulfosuccinamides is present.

7. A composition as claimed in any of claims 1 to 6, wherein there is present one or more nonionic surfactants.

8. A composition as claimed in claim 7, wherein there is present one or more alkoxylated C10-22 alcohols.

9. A composition as claimed in any of claims 5 to 8, wherein there is present one or more anionic and one or more nonionic surfactants.

10. A composition as claimed in any of claims 5 to 8, wherein there is present one or more sulfosuccinates, more particularly monoesters, and one or more alkoxylated C10-22 alcohols.

11. A composition as claimed in any of claims 1 to 10, wherein there is present one or more solvents from the group consisting of C1-4 monoalcohols, C2-6 glycols, C3-12 glycol ethers and glycerol.

12. A composition as claimed in claim 11, wherein there is present ethanol.

13. A composition as claimed in any of claims 1 to 12, wherein there is present one or more complexing/sequestering agents.

14. A composition as claimed in claim 13, wherein there is present citric acid, etidronic acid and/or one or more of its salts or tertiary amines.

15. A composition as claimed in claim 14, wherein the tertiary amines are tertiary alkanolamines.

16. A composition as claimed in any of claims 1 to 15, wherein there is present a complexing/sequestering agent combination of one or more tertiary amines and one or more other complexing/sequestering agents.

17. A composition as claimed in claim 16, wherein there is present one or more complexing/sequestering acids or salts thereof.

18. A composition as claimed in claim 17, wherein there is present triethanolamine and/or tetra-2-hydroxypropyl ethylenediamine and citric acid and/or one or more of its salts and etidronic acid and/or one or more of its salts.

19. A composition as claimed in any of claims 1 to 18, wherein there is present one or more alkaline pH regulators.

20. A composition as claimed in claim 19, wherein there is present alkali metal hydroxides.

21. A composition as claimed in claim 20, wherein there is present potassium hydroxide.

22. A composition as claimed in any of claims 1 to 21, wherein there is present one or more perfumes.

23. A composition as claimed in any of claims 1 to 22, wherein there is present one or more antibacterial agents.

24. A product containing the composition claimed in any of claims 1 to 23 and a spray dispenser.

25. The use of the composition claimed in any of claims 1 to 24 for deodorizing an object, a surface or a room, preferably textile fabrics, household surfaces, shoes, garbage bins, recycling containers, air, relatively large domestic appliances, cat litter, domestic animals, sleeping places for domestic animals, more particularly articles of clothing, loose and fitted carpets, curtains, upholstery, bed linen, tents, sleeping bags, car seats and carpets, fabric interior trim of motor cars, bar surfaces, walls, floors, bathroom surfaces and kitchen surfaces.

26. The use as claimed in claim 25 wherein the composition is in a spray dispenser.

27. A process for deodorizing an object, a surface or a room, characterized in that an effective quantity of the composition claimed in any of claims 1 to 24 is distributed on and/or in the object, on the surface or in the room, preferably textile fabrics, household surfaces, shoes, garbage bins, recycling containers, air, relatively large domestic appliances, cat litter, domestic animals, sleeping places for domestic animals, more particularly articles of clothing, loose and fitted carpets, curtains, upholstery, bed linen, tents, sleeping bags, car seats and carpets, fabric interior trim of motor cars, bar surfaces, walls, floors, bathroom surfaces and kitchen surfaces, fabrics and shoes preferably not being sprayed to saturation and the composition hardly being visible after drying on the object or the surface.

28. A process as claimed in claim 27, wherein the composition is in a spray dispenser.

29. The use of the composition claimed in any of claims 1 to 24 as a concentrate to be diluted with water for the preparation of a ready-to-use concentrated composition.

30. A process for the preparation of the composition claimed in any of claims 1 to 24 by dilution of a concentrate with water.