Malodor counteracting compositions and method for their use to counteract sweat malodor

Abstract

The invention relates to a malodor counteractancy or counteracting (MOC) method that resorts to the use of specific malodor counteracting (MOC) mixtures of MOC ingredients. More particularly, the invention relates to new MOC compositions capable of neutralizing or masking in an efficient manner sweat malodor and which can be used in perfumes, deodorants, antiperspirants and other body care products.

1 .- 19 . (canceled) 
     
     
         20 . A method to counteract sweat malodour, which comprises:
 applying to a sweat-generating skin surface a malodor counteracting (MOC) composition either alone or in a perfuming composition or body deodorant, the composition comprising at least three different MOC ingredients each having a malodor inhibition coefficient of at least 25%, present in a total amount of at least 30% by weight, relative to the weight of the MOC composition, and at a concentration of at least 0.005% weight per volume in an appropriate medium that is sufficient to reduce, mask, eliminate or prevent sweat malodor perception that is generated by  Staphylococcus haemolyticus  enzymatic activity from an individual exposed to the sweat or to the surface.   
     
     
         21 . The method according to  claim 20 , wherein the MOC ingredients are selected from the group consisting of (−)-(2E)-2-ethyl-4-[(1R)-2,2,3-trimethyl-3-cyclopenten-1-yl]-2-buten-1-ol; 3-(4-tert-butylphenyl)propanal; 4-cyclohexyl-2-methyl-2-butanol; 3-(4-tert-butylphenyl)-2-methylpropanal; (+)-(1S,2S,3S)-2,6,6-trimethyl-bicyclo[3.1.1]heptane-3-spiro-2′-cyclohexen-4′-one; cashmeran (1,2,3,5,6,7-hexahydro-1,1,2,3,3-pentamethyl-4-indenone); 9,12-octadecadienoic acid, 9,12,15-octadecatrienoic acid, and mixtures thereof; nerolidol; 1,4-dioxacyclohexadecane-5,16-dione; 8,12-epoxy-13,14,15,16-tetranorlabdane; (−)-(1′R,E)-3,3-dimethyl-5-(2′,2′,3′-trimethyl-3′-cyclopenten-1′-yl)-4-penten-2-ol; (E)-2-dodecenal; 3-decanal, 2-methyldecanal and mixtures thereof; 8-isopropyl-6-methyl-bicyclo[2.2.2]oct-5-ene-2-carbaldehyde; 3-(3-isopropyl-1-phenyl)butanal; (E)-2-decenal; 3-(4-methyl-3-pentenyl)-3-cyclohexene-1-carbaldehyde, 4-(4-methyl-3-pentenyl)-3-cyclohexene-1-carbaldehyde and mixtures thereof; 9-undecenal; vetyver essential oil; vetyverone; 4,5,6,7,8,9,10,11,12,13-decahydrocyclododeca-1,3-oxazole; 2-tridecenal; 9-undecenal, 10-undecenal and mixtures thereof; nonanal; (+)-(4R)-1-p-menthene-9-carbaldehyde; (E)-4-decenal; 3,7-dimethyloctanal; eucalyptus essential oil; 3-(3,3-dimethyl-5-indanyl)propanal, 3-(1,1-dimethyl-5-indanyl)propanal and mixtures thereof; (Z)-4-dodecenal; and 3-(6,6-dimethyl-bicyclo[3.1.1]hept-2-en-2-yl)propane. 
     
     
         22 . A malodor counteracting (MOC) body-care composition able to reduce sweat malodor when applied to a sweat-generating skin surface, comprising at least three different MOC ingredients each having a malodor inhibition coefficient of at least 25%, present in a total amount of at least 30% by weight, relative to the weight of the MOC composition, and at a MOC ingredient concentration of at least 0.005% weight per volume in an appropriate medium, which composition is effective to reduce or suppress malodor generated by  Staphylococcus haemolyticus  enzymatic activity. 
     
     
         23 . The MOC composition according to  claim 22 , wherein each ingredient is characterized by a malodor inhibition coefficient of at least 30% or 50%, at a concentration in the medium of at least 0.0125% weight per volume. 
     
     
         24 . The MOC composition according to  claim 22 , comprising at least 50% by weight of the MOC ingredients, relative to the weight of the composition. 
     
     
         25 . The MOC composition according to  claim 22 , having a malodor inhibition coefficient of about 40% or more, at a MOC composition concentration of at least 0.0006 v/v in an appropriate medium, against malodor generated by  Staphylococcus haemolyticus  enzymatic activity in the medium. 
     
     
         26 . The MOC composition according to  claim 25 , having a malodor inhibition coefficient of at least 60%, at a MOC composition concentration of at least 0.0125% v/v in the medium. 
     
     
         27 . The MOC composition according to  claim 26 , having a malodor reduction value of at least 3 or 4. 
     
     
         28 . The MOC composition according to  claim 22 , wherein the MOC ingredients are selected from the group consisting of (−)-(2E)-2-ethyl-4-[(1R)-2,2,3-trimethyl-3-cyclopenten-1-yl]-2-buten-1-ol; 3-(4-tert-butylphenyl)propanal; 4-cyclohexyl-2-methyl-2-butanol; 3-(4-tert-butylphenyl)-2-methylpropanal; (+)-(1S,2S,3S)-2,6,6-trimethyl-bicyclo[3.1.1]heptane-3-spiro-2′-cyclohexen-4′-one; cashmeran (1,2,3,5,6,7-hexahydro-1,1,2,3,3-pentamethyl-4-indenone); 9,12-octadecadienoic acid, 9,12,15-octadecatrienoic acid, and mixtures thereof; nerolidol; 1,4-dioxacyclohexadecane-5,16-dione; 8,12-epoxy-13,14,15,16-tetranorlabdane; (−)-(1′R,E)-3,3-dimethyl-5-(2′,2′,3′-trimethyl-3′-cyclopenten-1′-yl)-4-penten-2-ol; (E)-2-dodecenal; 3-decanal, 2-methyldecanal and mixtures thereof; 8-isopropyl-6-methyl-bicyclo[2.2.2]oct-5-ene-2-carbaldehyde; 3-(3-isopropyl-1-phenyl)butanal; (E)-2-decenal; 3-(4-methyl-3-pentenyl)-3-cyclohexene-1-carbaldehyde, 4-(4-methyl-3-pentenyl)-3-cyclohexene-1-carbaldehyde and mixtures thereof; 9-undecenal; vetyver essential oil; vetyverone; 4,5,6,7,8,9,10,11,12,13-decahydrocyclododeca-1,3-oxazole; 2-tridecenal; 9-undecenal, 10-undecenal and mixtures thereof; nonanal; (+)-(4R)-1-p-menthene-9-carbaldehyde; (E)-4-decenal; 3,7-dimethyloctanal; eucalyptus essential oil; 3-(3,3-dimethyl-5-indanyl)propanal, 3-(1,1-dimethyl-5-indanyl)propanal and mixtures thereof; (Z)-4-dodecenal; and 3-(6,6-dimethyl-bicyclo[3.1.1]hept-2-en-2-yl)propane. 
     
     
         29 . The MOC composition according to  claim 22 , together with a perfuming co-ingredient, a solvent or an adjuvant or carrier of current use in perfumery to form a perfuming composition. 
     
     
         30 . The MOC composition according to  claim 29 , wherein the MOC composition constitutes from 10 to 80% by weight, of the total weight of the perfuming composition. 
     
     
         31 . The MOC composition according to  claim 29 , having a malodor inhibition coefficient of at least 60%, at a defined perfuming composition concentration in an appropriate medium, against malodor generated by  Staphylococcus haemolyticus  enzymatic activity in the medium, and a malodor reduction value of at least 3. 
     
     
         32 . A body deodorant or antiperspirant comprising at least 0.5% by weight, relative to its total weight, of a MOC composition according to  claim 22 . 
     
     
         33 . The body deodorant or antiperspirant of  claim 32  wherein the MOC composition is present in an amount of 1 to 5% by weight. 
     
     
         34 . The body deodorant or antiperspirant of  claim 33  having a malodor inhibition coefficient of at least 60%, at a concentration of at least 0.5% v/v of the deodorant or antiperspirant in an appropriate medium, against malodor generated by  Staphylococcus haemolyticus  enzymatic activity in the medium, and a malodor reduction value of at least 3 or 4. 
     
     
         35 . A method to counteract sweat malodour, which comprises:
 applying to a sweat-generating skin surface a malodor counteracting (MOC) composition either alone or in a perfuming composition or body deodorant, the composition comprising at least three different MOC ingredients each having a malodor inhibition coefficient of at least 60%, present in a total amount of at least 50% by weight, relative to the weight of the MOC composition, and at a concentration of at least 0.0125% weight per volume in an appropriate medium, and applied at an amount that is sufficient to reduce, mask, eliminate or prevent sweat malodor perception that is generated by  Staphylococcus haemolyticus  enzymatic activity from an individual exposed to the sweat or to the surface.