US20100028288A1 - Malodor counteracting compositions and method for their use - Google Patents

Malodor counteracting compositions and method for their use Download PDF

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Publication number
US20100028288A1
US20100028288A1 US12/438,713 US43871307A US2010028288A1 US 20100028288 A1 US20100028288 A1 US 20100028288A1 US 43871307 A US43871307 A US 43871307A US 2010028288 A1 US2010028288 A1 US 2010028288A1
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group
moc
malodor
composition according
nitrile
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Inventor
Lyse Tranzeat
Nicholas O'Leary
Wessel-Jan Kos
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Firmenich SA
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Firmenich SA
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/013—Deodorant compositions containing animal or plant extracts, or vegetable material
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
    • A01K1/0152—Litter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/35—Ketones, e.g. benzophenone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/4973—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with oxygen as the only hetero atom
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q13/00—Formulations or additives for perfume preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q15/00—Anti-perspirants or body deodorants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/002—Aftershave preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/02—Preparations for cleaning the hair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/12—Preparations containing hair conditioners
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/32—Oxygen atoms
    • C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D315/00—Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups C07D303/00 - C07D313/00
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/008—Preparations of disperse dyes or solvent dyes
    • C09B67/0082—Preparations of disperse dyes or solvent dyes in liquid form
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B9/00—Essential oils; Perfumes
    • C11B9/0007—Aliphatic compounds
    • C11B9/0023—Aliphatic compounds containing nitrogen as the only heteroatom
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B9/00—Essential oils; Perfumes
    • C11B9/0026—Essential oils; Perfumes compounds containing an alicyclic ring not condensed with another ring
    • C11B9/003—Essential oils; Perfumes compounds containing an alicyclic ring not condensed with another ring the ring containing less than six carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B9/00—Essential oils; Perfumes
    • C11B9/0026—Essential oils; Perfumes compounds containing an alicyclic ring not condensed with another ring
    • C11B9/0034—Essential oils; Perfumes compounds containing an alicyclic ring not condensed with another ring the ring containing six carbon atoms
    • 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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0068—Deodorant compositions
    • 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
    • C11D3/50—Perfumes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/005—Compositions containing perfumes; Compositions containing deodorants

Definitions

  • the present invention relates to a malodor counteractancy or counteracting (MOC) method that resorts to the use of specific malodor counteracting (MOC) mixtures of fragrance ingredients. More particularly, the invention relates to new MOC ingredients capable of neutralizing or masking in an efficient manner malodors of a large variety of origins and which can be encountered in the air, on textiles, bathroom or kitchen surfaces, etc.
  • the novel MOC compositions of the invention contain at least one material of group (I) and at least one material of group (II), as defined below.
  • the invention also relates to methods of use of the MOC compositions and ingredients to counteract malodor and of any finished consumer products containing them, such as air fresheners, kitchen or toilet/bathroom cleaning or freshening products, textile treatment products and products for application on the human skin or hair, or on animal fur and skin, litter containers and cages.
  • finished consumer products containing them such as air fresheners, kitchen or toilet/bathroom cleaning or freshening products, textile treatment products and products for application on the human skin or hair, or on animal fur and skin, litter containers and cages.
  • the present invention relates to MOC compositions comprising at least one ingredient selected from Group (I) compounds and at least one ingredient selected from Group (II) compounds, wherein the Group (I) compounds and the Group (II) compounds are defined as follows:
  • R 7 represents a C 1 to C 10 linear or branched alkyl or allyl radical
  • R 8 is H or a C 1 to C 4 linear or branched alkyl radical
  • the at least one compound from Group (I) is a compound of formula (I) comprising a single double bond in the ring, said double bond being located in a position alpha relative to the substituting side chain of the ring carrying the functional group R 1 .
  • the at least one compound from Group (I) is selected from the group consisting of ⁇ -methyl-ionone, undecalactone, ( ⁇ )-methyl-2,2-dimethyl-6-methylene-1-cyclohexanecarboxylate, (E)-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one) and ⁇ -damascone.
  • the at least one compound from Group (I) is selected from ⁇ -methyl-ionone and ⁇ -damascone.
  • Preferred nitriles from Group (II) are selected from the group consisting of cinnamonitrile or 3-phenyl-2-propenenitrile, citronitrile, geranyl nitrile, cytronellyl nitrile, 2-propyl-1-heptanenitrile, dodecanenitrile, all of these materials being ingredients available from Firmenich SA, and the nitrile described in U.S. Pat. No.6,180,814, or 3-(2,3-dimethyl-2(3)-cyclopenten-1-yl)butanenitrile and 3-(2-methyl-3-methylene-1-cyclopentyl)butanenitrile.
  • the at least one nitrile of Group (II) is selected from citronellyl nitrile, 2-propyl-1-heptanenitrile and the nitrile described in U.S. Pat. No.6,180,814.
  • a “synergetic” effect it is understood here an effect which is not the simple sum or addition of the MOC effect expected when the two materials would have been admixed in a 50:50 proportion in the mixture, or in any other relative proportion.
  • the contribution from each material, as a function of its concentration relative to the weight of the selected testing malodor mixture, is first experimentally established, such that, for a given concentration of each individual material of Group (I) or of Group (II), a precise MOC reduction effect can be established.
  • a malodor counteracting (MOC) composition is to be understood as a mixture of ingredients as defined above and which is capable of reducing the perception of malodor, i.e. of an odor that is unpleasant or offensive to the human nose.
  • the individual MOC materials, and their mixtures are shown to reduce the malodor perceived from compositions formed either according to International standards or as indicated in the examples further on, and which are representative of the various odors of interest generally recognized as being unpleasant or offensive to the human nose.
  • the amount of compound or compounds of Group (I) and of compound or compounds of Group (II) in the MOC composition of the invention can vary in a wide range of values comprised between 1 and 99% by weight of each of the two components, relative to the weight of the MOC composition. For each combination, the optimum relative concentrations can easily be established as indicated in the examples presented further on.
  • the latter may be used on its own or combined with other ingredients.
  • the invention also concerns the use of the MOC compositions for preparing perfuming compositions containing other ingredients added mainly for their perfuming effect, such that the perfuming compositions of the invention comprise at least two distinct components, the MOC composition of the invention and a mixture of fragrance ingredients of a different nature.
  • the MOC compositions may be admixed with perfuming ingredients of a different nature, the latter providing a desired hedonic effect of a pleasant nature.
  • the MOC composition will typically constitute from 0.1 to 50% by weight, preferably from 5 to 50% by weight and more preferably from 9 to 20%, of the total weight of the perfuming composition according to the invention.
  • the perfuming composition may also comprise solvents and adjuvants of current use in perfumery.
  • the consumer products containing the MOC compositions of the invention such as deodorants, air fresheners, products for the treatment of substrates such as textiles, kitchen and toilet surfaces, are also an object of the present invention.
  • a method to mask or cover malodors of the above-mentioned types comprises applying to spaces, in particular air in closed spaces such as rooms and cupboards, or to any surface intended to be deodorized or freshened, a MOC composition according to the invention, in an amount sufficient to reduce, mask, eliminate or prevent any malodor perception from said surface or closed space.
  • surfaces the odor of which can thus be improved one can cite human skin and hair, animal skin or fur, kitchen and toilet surfaces, the surface of animal cages or litter containers, rubbish containers surfaces, textile and laundry surfaces, glass windows, dishes and crockery surfaces, etc.
  • perfuming co-ingredients are typically not compounds of Group (I) or of Group (II).
  • perfuming co-ingredient it is meant here a compound which is used in perfuming a preparation or composition to impart a hedonic effect. In other words such a co-ingredient, must be recognized by a person skilled in the art as being able to impart or modify in a positive or pleasant way the odor of a composition, and not just as having an odor.
  • perfuming co-ingredients of the MOC composition in the perfumes and perfuming compositions of the invention do not warrant a more detailed description here, which in any case would not be exhaustive, the skilled person being able to select them on the basis of its general knowledge and according to intended use or application and the desired perfuming effect.
  • these perfuming co-ingredients belong to chemical classes as varied as alcohols, aldehydes, ketones, esters, ethers, acetates, nitriles, terpene hydrocarbons, nitrogenous or sulfurous heterocyclic compounds and essential oils, and said perfuming co-ingredients can be of natural or synthetic origin.
  • co-ingredients are in any case listed in reference texts such as the book by S. Arctander, Perfume and Flavor Chemicals, 1969, Montclair, N.J., USA, or its more recent versions, or in other works of a similar nature, as well as in the abundant patent literature in the field of perfumery. It is also understood that said co-ingredients may also be compounds known to release in a controlled manner various types of perfuming compounds.
  • liquid carrier for such perfuming ingredients one may cite, as non-limiting examples, an emulsifying system, i.e. a solvent and a surfactant system, or a solvent commonly used in perfumery.
  • a solvent and a surfactant system i.e. a solvent and a surfactant system
  • a detailed description of the nature and type of solvents commonly used in perfumery cannot be exhaustive.
  • solvents such as di-propylene glycol, diethyl phthalate, isopropyl myristate, benzyl benzoate, 2-(2-ethoxyethoxy)-1-ethanol or ethyl citrate, which are the most commonly used.
  • the perfuming ingredients may also be present in a solid form, encapsulate or dispersed in solid carriers.
  • solid carriers one may cite, as non-limiting examples, absorbing gums or polymers, or yet encapsulating materials.
  • materials may comprise wall-forming and plasticizing materials, such as mono, di- or tri-saccharides, natural or modified starches, hydrocolloids, cellulose derivatives, polyvinyl acetates, polyvinylalcohols, proteins or pectins, or yet the materials cited in reference texts such as H.
  • the encapsulation is a well known process to a person skilled in the art, and may be performed, for instance, using techniques such as spray-drying, agglomeration or yet extrusion; or consists of a coating encapsulation method, including coacervation and complex coacervation techniques.
  • the invention's MOC compositions on their own or as components of the perfuming compositions according to the invention can also be advantageously used in all the fields of modern perfumery to positively impart or modify the odor of a consumer product into which they are incorporated. Consequently, a consumer article or product comprising the MOC or perfuming compositions according to the invention, as defined above, is another object of the present invention.
  • Such consumer products typically comprise a consumer product base, in addition to the MOC and/or perfuming composition of the invention.
  • consumer product base we mean here a base which is distinct from, but compatible with, the MOC and perfuming compositions of the invention, and which is typically formed of substances capable of achieving the functional effect typically required from that product, such as cleaning, softening, freshening, deodorizing and others.
  • Typical consumer product bases are the functional mixtures of ingredients that form the base of for example a surface or textile detergent or soap, a surface or textile softener, an air freshener, a cosmetic preparation, a deodorant, etc.
  • suitable consumer product bases include those of solid or liquid detergents and fabric softeners as well as all the other articles common in perfumery, namely perfumes, colognes or after-shave lotions, perfumed soaps, shower or bath salts, mousses, oils or gels, hygiene products or hair care products such as shampoos, body-care products, deodorants or antiperspirants, air fresheners and also cosmetic preparations.
  • Detergents include cleaning products for washing up or for cleaning various surfaces, e.g. intended for textile, dish or hard-surface treatment, whether they are intended for domestic or industrial use.
  • Other perfumed articles are fabric refreshers, ironing waters, paper or non-woven substrates generally used for domestic cleaning of kitchen and bathroom surfaces in particular, or yet wipes and bleaches.
  • consumer product bases may represent an aggressive media for the MOC or perfuming compositions of the invention, so that it may be necessary to protect the latter from premature decomposition, for example by encapsulation.
  • the proportions in which the MOC compositions, or the perfuming compositions containing them, can be incorporated into the various aforementioned consumer articles or products may vary within a wide range of values. These values are dependent on the nature of the product as well as on the desired malodor counteracting effect that one wants to achieve.
  • the amount of perfuming composition containing the MOC component that is added to the consumer product is the typical amount that can be found currently in each type of consumer product and can be easily adjusted by the skilled formulator according to the perfuming and malodor counteracting effect that is desired to achieve and the nature of the consumer product in question.
  • the air freshener composition intended for diffusion into its surroundings and which is usually contained in a recipient forming the main body of the air freshener may be entirely formed of the perfuming compositions of the invention, together with an appropriate solvent such as water and or an organic solvent or may even consist of just the MOC composition according to the invention, if this is desired.
  • the malodor counteracting compositions and perfumes intended for air freshener use may also contain some optional ingredients acting as, for example, solvents, thickeners, anti-oxidants, dyes, bittering agents and uv inhibitors.
  • solvents may be useful to have a single-phase liquid and/or to modulate the speed of evaporation of the active material into the surrounding air.
  • Said solvents may belong to the families of isoparaffins, paraffins, hydrocarbons, namely glycols, glycol ethers, glycol ether esters, esters or ketones.
  • solvents useful to the invention are known under the tradename Isopar® H, J, K, L, M, P or V (isoparaffins; origin: Exxon Chemical), Norpar® 12 or 15 (paraffins; origin: Exxon Chemical), Exxsol® D 155/170, D 40, D 180/200, D 220/230, D 60, D 70, D 80, D 100, D 110 or D 120 (dearomatised Hydrocarbons; origin: Exxon Chemical), Dowanol® PM, DPM, TPM, PnB, DPnB, TPnB, PnP or DPnP (glycol ethers; origin: Dow Chemical Company), Eastman® EP, EB, EEH, DM, DE, DP or DB (glycol ethers; origin: Eastman Chemical Company), Dowanol® PMA or PGDA (glycol ether esters; origin: Dow Chemical Company) or Eastman® EB acetate, Eastman® DE acetate,
  • solvents useful are dipropylene glycol, propylene glycol, ethylene glycol ethyl ether acetate, ethylene glycol diacetate, isopropyl myristate, diethyl phthalate, 2-ethylhexyl acetate, methyl n-amyl ketone or di-isobutyl ketone.
  • Dyes are other optional ingredients of the MOC compositions for airfresheners. Suitable dyes are oil-soluble and can be found in the Colour Index International, published by The Society of Dyers and Colourist. Non-limiting examples of suitable dyes are derivatives of the anthraquinone, methine, azo, triarylmethane, triphenylmethane, azine, aminoketone, spirooxazine, thioxanthene, phthalocyanine, perylene, benzopyran or perinone families.
  • Oilsol® Blue DB (anthraquinone; origin: Morton International Ltd.), Sandoplast® Yellow 3G (methine; origin: Clariant Huningue S.A.), Savinyl® Scarlet RLS (azo metal complex; origin: Clariant Huningue S.A.), Oilsol® Yellow SEG (monoazo; origin: Morton International Ltd.), Fat Orange® R (monoazo; origin: Hoechst AG), Fat Red® 5B (diazo; origin: Hoechst AG), Neozapon® Blue 807 (phtalocyanine; origin: BASF AG), Fluorol® Green Golden (perylene; origin: BASF AG).
  • FIGS. 1 a ) to d ) show the % malodor reduction effectiveness of the MOC compositions A to D of the invention, described in Examples 1 to 4, against bathroom malodors.
  • FIGS. 2 a ) to d ) show the % malodor reduction effectiveness of the MOC compositions E to H of the invention, described in Examples 5 to 8, against tobacco malodor.
  • FIGS. 3 a ) and b ) show the % malodor reduction effectiveness of the MOC compositions I and J of the invention, described in Examples 9 and 10, against kitchen malodor.
  • FIG. 4 compares the experimental and the theoretical % malodor reduction of bathroom malodor achieved by different MOC compositions comprising diverse proportions of each of the two components of three different pairs of compounds from Groups 1 and 2.
  • FIG. 5 summarizes the results of the evaluation of the six MOC compositions of the invention described in Example 12 against bathroom malodor and shows that the malodor counteracting activity of the MOC compositions comprising a compound (I) having a ring double bond in position alpha relative to the substituent group R 1 perform consistently better than those comprising a compound (I) wherein the double bond in the ring lies in position beta relative to R 1 .
  • FIG. 6 represents the malodor counteracting activity of each Group (I) raw material compound of formula (I) used on its own against bathroom malodor, as described in Example 12.
  • FIGS. 7 a ) and b ) show the ability of a laundry product containing a perfuming composition comprising a MOC composition of the invention to reduce body malodor.
  • the results are presented for two different concentrations of the MOC composition, i.e. 4.5% and 9.5% by weight, relative to the total weight of the perfuming composition.
  • the tobacco malodor was prepared by extraction of cigarette's ash and smoked stub.
  • test concentration of the specific malodor sample used in each case was always selected so as to provide a perceived malodor intensity, when evaluated in Sniffin® Pens as described below, that was approximately of the order of 4 to 5 units in the scale described under (ii) below.
  • the three types of malodor samples that were perceived as having about 4.5 malodor intensity were as follows:
  • Each raw material to be evaluated for MOC effect against one of the malodor compositions was diluted at 10% by weight in propylene glycol.
  • the typical bathroom malodor sample was diluted at 2% by weight in propylene glycol, the tobacco malodor was diluted at 60% by weight in propylene glycol and the kitchen malodor was diluted at 0.6% by weight in propylene glycol.
  • Each sensory test comprised the following samples:
  • the samples were evaluated by a panel of at least 20 trained panelists.
  • trained panelists we mean here individuals that had previously been screened for olfactive acuity and were experienced in rating the perfume intensity of air freshener products. Moreover, the panelists were prior acquainted with the malodor sample before carrying out the evaluations of the raw material samples counteracting effect.
  • Sniffin Pens were presented to the panelists in Sniffin Pens. Each Sniffin Pen was labeled with a randomly generated 3 digit code. Sniffin Pens were presented to the panelist according to a Latin square design order. These are presentation methods in which the samples are presented in a balanced manner, each product being presented the same number of times in every position, and every possible pair is represented the same number of times (see Multivariate analysis of data in sensory science, edited by T. Naes, E. Risvik, Norwegian Food Research Institute, Oslovein, Norway, 1996, Elsevier, E.A. Hunter, Chapter 2).
  • x mal ( x 5 +x 6 )/2.
  • This x mal value is then used to calculate the % of malodor reduction, or malodor counterancy effect MOC, of each individual raw material RM 1 to 4, according to the following equation:
  • n an integer of 1 to 4, designating the specific raw material in question in each evaluation test.
  • Each of the two raw materials to be admixed to provide a MOC composition according to the invention was diluted at 10% by weight in propylene glycol.
  • the typical bathroom malodor sample was diluted at 2% by weight in propylene glycol, the tobacco malodor was diluted at 60% by weight in propylene glycol and the kitchen malodor was diluted at 0.6% by weight in propylene glycol.
  • x mal ( x 12 +x 13 )/2.
  • This x mal value is then used to calculate the % of malodor reduction of each MOC composition, according to the following equation:
  • n an integer of 8 to 11, designating the specific MOC composition in question in each evaluation test.
  • a theoretical % malodor reduction value for each MOC composition, against each malodor type, is also calculated as the arithmetic average of the % malodor reduction values obtained as in A. for the two raw materials that are combined in each MOC composition of the invention.
  • MOC composition 1 in Table 2 is a 50:50 mixture of raw materials RM 1 and RM 2 of Table 1, then the theoretical % malodor reduction value for MOC composition 1 against bathroom malodor is equal to (x 1 +x 2 )/2, x 1 and x 2 being the same values as in Table 1. If this theoretical value is below the experimental Table 2 X 8 value obtained with this MOC composition 1 against bathroom malodor, then the combination of raw materials RM 1 and RM 2 provides an unexpected synergic effect against bathroom malodor.
  • a variety of MOC compositions A to D were prepared by admixing the corresponding raw materials indicated in Table 3, in a range of relative proportions varying from 1:99 to 99:1 of each of the raw materials indicated.
  • FIGS. 1 a ) to d ) show the % malodor reduction effectiveness of the MOC compositions A to D against bathroom malodors.
  • MOC compositions E to H were prepared by admixing the corresponding raw materials indicated in Table 4, in a range of relative proportions varying from 1:99 to 99:1 of each of the raw materials indicated.
  • FIGS. 2 a ) to d ) show the % malodor reduction effectiveness of the MOC compositions E to H against tobacco malodor.
  • MOC compositions I and J were prepared by admixing the corresponding raw materials indicated in Table 5, in a range of relative proportions varying from 1:99 to 99:1 of each of the raw materials indicated.
  • FIGS. 3 a ) and b ) show the % malodor reduction effectiveness of the MOC compositions I and J against kitchen malodor.
  • MOC compositions according to the invention were prepared by admixing a given nitrile compound as the Group (II) component with a compound of formula (I) having a double bond in position alpha or beta relative to the functional substituent R 1 .
  • FIG. 5 summarizes the results of the evaluation of the six MOC compositions grouped by the type of structure of the compounds (I) and shows that the malodor counteracting activity of the MOC compositions comprising a compound (I) having a ring double bond in position alpha relative to the substituent R 1 performed consistently better than those comprising a compound (I) wherein the doube bond in the ring is in position beta.
  • Performance of a Perfuming Composition Comprising a MOC Composition of the Invention in Terms of Body Malodor Masking onto Washed Fabrics.
  • a perfuming composition according to the invention to mask body malodor, more specifically sweat malodor, was tested in a laundry product.
  • Two different perfuming compositions, containing respectively 4.5% and 9.5% by weight of the MOC composition relative to the total weight of a same perfume were prepared.
  • the formula of the MOC composition used is provided in Table 8 below.
  • Each of the perfuming compositions above was added to a laundry product base in an amount of 0.4% by weigh, relative to the total weight of the laundry product, to prepare two laundry products according to the invention.
  • the formula of the MOC composition used in the present example is provided in Table 8 below.
  • polyester Lycra® Eighteen swatches of polyester Lycra® were washed together with a ballast so as to obtain a total wash load of 2.5 kg. The latter were washed in a front load European washing machine at 40° C., without pre-wash, using 4 rinse cycles and 100 g of liquid detergent. The washed load was then line-dried during 24 hours under controlled conditions (22° C.-60% relative humidity).
  • Different test samples were prepared by washing the swatches with the laundry product containing the perfuming composition comprising either 4.5% or 9.5% by weight of the MOC composition. The samples were washed, dried and then sprayed with 0.33 g of the sweat malodor composition, one hour before the sensory evaluation.
  • One negative control was prepared by washing the swatch with the laundry product without any perfuming composition and by spraying it with the body malodor composition.
  • two positive controls were prepared by washing swatches with the laundry products containing the perfuming compositon either with 4.5% or with 9.5% by weight of the MOC composition, no body malodor composition being applied.
  • the sensory analysis was performed with a panel of trained panelists. They were asked to rate the overall odor intensity, the perfume intensity and the malodor intensity of each sample and control, on a linear 0-10 scale. The results of this sensory analysis were then analysed statistically. The final results are summarized in the charts of FIGS. 7 a ) and b ).
  • FIG. 7 b shows that a slight malodor reduction is already observed with the perfuming composition comprising 4.5% by weight of the MOC composition.
  • FIG. 7 a shows that when the perfuming compositon comprises a higher amount of the MOC composition of the invention (9.5% by weight), a significant reduction of the malodor is achieved.
  • any perfume composition to which the MOC mixtures are added can be used to provide similar effects.

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US20130164239A1 (en) 2013-06-27

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