Malodor counteracting compositions and method for their use

a composition and anti-malodor technology, applied in the field of anti-malodor or anti-moc method, can solve the problem of inability to review all the methods and compositions reported in this contex

Inactive Publication Date: 2010-02-04
FIRMENICH SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0080]4 Blind test samples with 5% of a given test raw material and 1% of bathroom malodor.
[0081]The samples were evaluated by a panel of at least 20 trained panelists. By “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.
[0082]The samples 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).
[0083]After smelling the malodor reference sample first to familiarize themselves with the malodor, the panelists were asked to rate the malodor intensity and the total odor intensity of each sample, based on a linear 1-7 scale (1=no odor-7=extremely strong odor) as shown here below:
[0084]The data generated from the panel's evaluations was statistically analyzed in each case using variance analysis (ANOVA, α=0.05) and least significance difference (LSD, α=0.05).
[0085]A typical example of the results is shown in Table 1 for bathroom malodor counteracting effect of four generic test raw materials (RM).

Problems solved by technology

The prior art richness in reports of methods to counteract and / or mask malodors is such that a complete review of all the methods and compositions prior reported in this context is impossible here.
Although one can find amongst the proposed ingredients a suggestion to combine chemicals such as damascone and decenyl nitrile with a third component of more complex structure, there is no suggestion that the simple combination of materials as are presently taught here would efficiently provide a MOC effect.

Method used

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  • Malodor counteracting compositions and method for their use
  • Malodor counteracting compositions and method for their use
  • Malodor counteracting compositions and method for their use

Examples

Experimental program
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Effect test

examples 1 to 10

Malodor Counteracting (MOC) Compositions and Their Use to Reduce Perception of Malodor

A. Malodor Counteracting Effect of Individual Raw Materials—General Conditions of Evaluation

[0064]A variety of raw materials from Groups (I) and (II) according to the invention were tested, using current sensory analysis methods, for their ability to reduce the perception of malodor of the bathroom, tobacco or kitchen type.

i) Malodor Compositions

[0065]The typical malodor compositions used in these evaluations were composed of the materials indicated hereafter:

Bathroom malodor*Ingredient% w / wDipropylene glycol62.82Thioglycolic acid21.18n-Caproic acid6.00n-Methylmorpholine6.004-Methylphenyl 3-methylbutanoate2.18Skatole0.912-Naphthalenethiol0.91Total100.00*U.S. General Services Administration Federal Supply Service Interim Specification, FA 200-5

[0066]Tobacco Malodor**

[0067]The tobacco malodor was prepared by extraction of cigarette's ash and smoked stub.

[0068]The ash and smoked stub of each cigarette...

examples 1 to 4

[0099]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.

TABLE 3MOC compositions and their componentsMOC CompositionRaw Material A*Raw Material B*ANitrile described inViolette BC1)U.S. Pat. No. 6,180,814BCitronellyl nitrileKoumalactone2)CCitronellyl nitrileγ-MethyliononeD2-Propyl-1-heptanenitrileα-Damascone1)β-Ionone2)perhydro-3,6-dimethyl-benzo[b]furan-2-one

[0100]FIGS. 1a) to d) show the % malodor reduction effectiveness of the MOC compositions A to D against bathroom malodors.

ii) Effect Against Tobacco Malodor

examples 5 to 8

[0101]A variety of 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.

TABLE 4MOC compositions and their componentsMOC CompositionRaw Material A*Raw Material B*ECitronellyl Nitrile1-(4,66-trimethyl-1,3-cyclohexadien-1-yl)-2-buten-1-oneFCitronellyl Nitrile1-(2,66-trimethyl-1(2)-cyclohexen-1-yl)-1,6-heptadien-3-oneGCitronellyl Nitrileδ-DamasconeHCitronellyl Nitrileγ-Methylionone*Origin: Firmenich SA, Geneva, Switzerland

[0102]FIGS. 2a) to d) show the % malodor reduction effectiveness of the MOC compositions E to H against tobacco malodor.

iii) Effect Against Kitchen Malodor

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Abstract

The 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 compositions capable of neutralizing or masking in an efficient manner malodors of a large variety of such as body or animal malodors, kitchen malodors, toilet and bathroom malodors, and tobacco malodor. The novel MOC compositions of the invention contain at least one nitrile material in combination with another fragrance material and can be used in any finished consumer products 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, litter containers or cages.

Description

TECHNICAL FIELD[0001]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.[0002]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.PRIO...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61L9/01C11D3/50C11D9/44A61K8/33A61K8/49A61Q13/00
CPCA01K1/0152C11B9/0034A61K8/33A61K8/35A61K8/37A61K8/40A61K8/4973A61L9/01A61L9/013A61Q5/00A61Q5/02A61Q5/12A61Q13/00A61Q15/00A61Q19/002A61Q19/10C07D307/33C07D315/00C09B67/0082C11D3/50D06M13/005C11D3/0068C11B9/0023C11B9/003A61K8/0208
Inventor TRANZEAT, LYSEO'LEARY, NICHOLASKOS, WESSEL-JAN
Owner FIRMENICH SA
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