초록 ▼

Compositions comprising undecylenic acid or citric acid and certain esters are effective for reducing malodors. The esters are in the molecular weight range of between 150-200 when the acid is undecylenic acid and in the range of between 130-230 when the acid is citric acid. These compositions can b

Compositions comprising undecylenic acid or citric acid and certain esters are effective for reducing malodors. The esters are in the molecular weight range of between 150-200 when the acid is undecylenic acid and in the range of between 130-230 when the acid is citric acid. These compositions can be used in perfumed products, household products and personal care products.

대표청구항 ▼

1. A malodor neutralizing composition, comprising: (1) undecylenic acid or citric acid, and(2) at least one ester of the formula (I): wherein R1 is hydrogen, phenyl optionally substituted by hydroxy or an amino group, or a C1-C11 alkyl group which can optionally contain 1 or 2 double bonds and whic

1. A malodor neutralizing composition, comprising: (1) undecylenic acid or citric acid, and(2) at least one ester of the formula (I): wherein R1 is hydrogen, phenyl optionally substituted by hydroxy or an amino group, or a C1-C11 alkyl group which can optionally contain 1 or 2 double bonds and which optionally can be substituted by a phenyl group, andR2 is C1-C6 unbranched alkyl, a C3-C12 branched alkyl group which can optionally contain 1 or 2 double bonds, or benzyl,with the proviso that(i) where R1 is a C1-C11 alkyl or alkylene radical substituted by phenyl, such substitution occurs at the 2- or higher carbon atom, and(ii) where both R1 and R2 are unbranched alkyls, the total number of carbon atoms in said alkyls is not greater than 12 and, if said total number of carbon atoms is greater than 8, the difference between the number of carbon atoms in R1 and R2 is at least 2,said ester having a molecular weight of between 150 and 200 when ingredient (1) is undecylenic acid and a molecular weight of between 130 and 230 when ingredient (1) is citric acid, andthe amount of ingredient (2) is 50-90% by weight of the total amount of ingredients (1) and (2). 2. A malodor neutralizing composition according to claim 1 in which ingredient (1) is undecylenic acid and if, in ingredient (2), both R1 and R2 are unbranched alkyls, the total number of carbon atoms in said alkyls is not greater than 8. 3. A malodor neutralizing composition according to claim 2 in which, in ingredient (2), R2 is C1-C5 unbranched alkyl or benzyl. 4. A malodor neutralizing composition according to claim 2 in which ingredient (2) is benzyl acetate, methyl anthranilate, methyl salicylate, ethyl heptanate, methyl cinnamate, ethyl cinnamate, amyl isovalerate, bornyl acetate or geranyl acetate. 5. A malodor neutralizing composition according to claim 4 in which ingredient (2) is bornyl acetate. 6. A perfumed product comprising a malodor neutralizing composition according to claim 2. 7. A perfumed product according to claim 6 in which ingredient (2) of the malodor neutralizing composition is benzyl acetate, methyl anthranilate, methyl salicylate, ethyl heptanate, methyl cinnamate, ethyl cinnamate, amyl isovalerate, bornyl acetate or geranyl acetate. 8. A household product comprising a malodor neutralizing composition according to claim 2. 9. A household product comprising a malodor neutralizing composition according to claim 8 in which ingredient (2) of the malodor neutralizing composition is benzyl acetate, methyl anthranilate, methyl salicylate, ethyl heptanate, methyl cinnamate, ethyl cinnamate, amyl isovalerate, bornyl acetate or geranyl acetate. 10. A personal care product comprising a malodor neutralizing composition according to claim 2. 11. A personal care product comprising a malodor neutralizing composition according to claim 10 in which ingredient (2) of the malodor neutralizing composition is benzyl acetate, methyl anthranilate, methyl salicylate, ethyl heptanate, methyl cinnamate, ethyl cinnamate, amyl isovalerate, bornyl acetate or geranyl acetate. 12. A malodor neutralizing composition according to claim 1 in which ingredient (1) is citric acid. 13. A malodor neutralizing composition according to claim 12 in which ingredient (2) is ethyl isovalerate, methyl benzoate, butyl butyrate, methyl anthranilate, methyl cinnamate, amyl isovalerate, bornyl acetate, geranyl acetate, ethyl decylate, or linalyl butyrate. 14. A malodor neutralizing composition according to claim 13 in which ingredient (2) is bornyl acetate. 15. A perfumed product according to claim 12 in which ingredient (2) of the malodor neutralizing composition is ethyl isovalerate, methyl benzoate, butyl butyrate, methyl anthranilate, methyl cinnamate, amyl isovalerate, bornyl acetate, geranyl acetate, ethyl decylate, or linalyl butyrate. 16. A household product comprising a malodor neutralizing composition according to claim 12. 17. A household product comprising a malodor neutralizing composition according to claim 16 in which ingredient (2) of the malodor neutralizing composition is ethyl isovalerate, methyl benzoate, butyl butyrate, methyl anthranilate, methyl cinnamate, amyl isovalerate, bornyl acetate, geranyl acetate, ethyl decylate, or linalyl butyrate. 18. A personal care product comprising a malodor neutralizing composition according to claim 12. 19. A personal care product comprising a malodor neutralizing composition according to claim 18 in which ingredient (2) of the malodor neutralizing composition is ethyl isovalerate, methyl benzoate, butyl butyrate, methyl anthranilate, methyl cinnamate, amyl isovalerate, bornyl acetate, geranyl acetate, ethyl decylate, or linalyl butyrate. 20. A method for reducing malodors which comprises contacting the source of said malodors with an effective amount of a malodor neutralizing composition comprising: (1) undecylenic acid or citric acid, and(2) at least one ester of the formula (I): wherein R1 is hydrogen, phenyl optionally substituted by hydroxy or an amino group, or a C1-C11 alkyl group which can optionally contain 1 or 2 double bonds and which optionally can be substituted by a phenyl group, andR2 is C1-C6 unbranched alkyl, a C3-C12 branched alkyl group which can optionally contain 1 or 2 double bonds, or benzyl,with the proviso that(i) where R1 is a C1-C11 alkyl radical substituted by phenyl, such substitution occurs at the 2- or higher carbon atom, and(ii) where both R1 and R2 are unbranched alkyls, the total number of carbon atoms in said alkyls is not greater than 12 and, if said total number of carbon atoms is greater than 8, the difference between the number of carbon atoms in R1 and R2 is at least 2,said ester having a molecular weight of between 150 and 200 when ingredient (1) is undecylenic acid and a molecular weight of between 130 and 230 when ingredient (1) is citric acid, andthe amount of ingredient (2) is 50-90% by weight of the total amount of ingredients (1) and (2). 21. A method according to claim 20 in which ingredient (1) of the malodor neutralizing composition is undecylenic acid and if, in ingredient (2), both R1 and R2 are unbranched alkyls, the total number of carbon atoms in said alkyls is not greater than 8. 22. A method according to claim 21 in which ingredient (2) of the malodor neutralizing composition is benzyl acetate, methyl anthranilate, methyl salicylate, ethyl heptanate, methyl cinnamate, ethyl cinnamate, amyl isovalerate, bornyl acetate or geranyl acetate. 23. A method according to claim 22 in which ingredient (2) of the malodor neutralizing composition is bornyl acetate. 24. A method according to claim 20 in which ingredient (1) of the malodor neutralizing composition is citric acid. 25. A method according to claim 24 in which ingredient (2) of the malodor neutralizing composition is ethyl isovalerate, methyl benzoate, butyl butyrate, methyl anthranilate, methyl cinnamate, amyl isovalerate, bornyl acetate, geranyl acetate, ethyl decylate, or linalyl butyrate. 26. A method according to claim 25 in which ingredient (2) is bornyl acetate. 27. A method for reducing malodors emanating from household or personal care products which comprises admixing to said products an effective amount of a malodor neutralizing composition comprising (1) undecylenic acid or citric acid(2) at least one ester of the formula (I): wherein R1 is hydrogen, phenyl optionally substituted by hydroxy or an amino group, or a C1-C11 alkyl group which can optionally contain 1 or 2 double bonds and which optionally can be substituted by a phenyl group, andR2 is C1-C6 unbranched alkyl, a C3-C12 branched alkyl group which can optionally contain 1 or 2 double bonds, or benzyl,with the proviso that(i) where R1 is a C1-C11 alkyl radical substituted by phenyl, such substitution occurs at the 2- or higher carbon atom, and(ii) where both R1 and R2 are unbranched alkyls, the total number of carbon atoms in said alkyls is not greater than 12 and, if said total number of carbon atoms is greater than 8, the difference between the number of carbon atoms in R1 and R2 is at least 2,said ester having a molecular weight of between 150 and 200 when ingredient (1) is undecylenic acid and a molecular weight of between 130 and 230 when ingredient (1) is citric acid, andthe amount of ingredient (2) is 50-90% by weight of the total amount of ingredients (1) and (2). 28. A method according to claim 27 in which ingredient (1) of the malodor neutralizing composition is undecylenic acid and if, in ingredient (2), both R1 and R2 are unbranched alkyls, the total number of carbon atoms in said alkyls is not greater than 8. 29. A method according to claim 28 in which ingredient (2) of the malodor neutralizing composition is benzyl acetate, methyl anthranilate, methyl salicylate, ethyl heptanate, methyl cinnamate, ethyl cinnamate, amyl isovalerate, bornyl acetate or geranyl acetate. 30. A method according to claim 29 in which ingredient (2) of the malodor neutralizer composition is bornyl acetate. 31. A method according to claim 27 in which ingredient (1) of the malodor composition is citric acid. 32. A method according to claim 31 in which ingredient (2) of the malodor neutralizing composition is ethyl isovalerate, methyl benzoate, butyl butyrate, methyl anthranilate, methyl cinnamate, amyl isovalerate, bornyl acetate, geranyl acetate, ethyl decylate, or linalyl butyrate. 33. A method according to claim 32 in which ingredient (2) of the malodor neutralizing composition is bornyl acetate. 34. The malodor neutralizing composition of claim 1, wherein the composition comprises 2-20% of a combination of ingredients (1) and (2). 35. The method of claim 20, wherein the composition comprises 2-20% of a combination of ingredients (1) and (2). 36. The method of claim 27, wherein the composition comprises 2-20% of a combination of ingredients (1) and (2). 37. A malodor neutralizing composition, comprising: (1) undecylenic acid or citric acid, and(2) bornyl acetate or ethyl laurate,wherein the amount of ingredient (2) is 50-90% by weight of the total amount of ingredients (1) and (2).