Perfume Compositions

Abstract

Disclosed are encapsulated perfume compositions showing improved balance between storage stability in consumer products and perfume diffusivity from intact microcapsules deposited on substrates (so-called pre-rub performance), the compositions comprising a combination of long chain aldehydes having 10 carbon atoms or more and/or tertiary alcohols having 10 carbon atoms or more, in combination with blooming perfume ingredients.

1 . An encapsulated perfume composition, wherein the encapsulated perfume composition is provided in the form of a plurality of core-shell microcapsules and wherein:
 a. the calculated microcapsule shell thickness of a microcapsule is lower than 0.5 μm; and   b. the encapsulated perfume composition must comprise comprises:
 i. from 5 to 35% by weight of one or more GROUP A perfume ingredients selected from from the group consisting of: long chain aldehydes having at least 10 carbon atoms and, tertiary alcohols having at least 10 carbon atoms; and, 
 ii. from 5 to 25% by weight of one or more GROUP B blooming perfume ingredients selected from the group consisting of: hexanal; heptanal; 2-(2-mercaptopropan-2-yl)-5-methylcyclohexanone; (E)-1-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)but-2-en-1-one; (E)-1-(2,6,6-trimethylcyclohex-3-en-l-yl)but-2-en-l-one; (E)-dec-4-enal; 1-methoxy-4-propylbenzene; ethyl butanoate; ethyl butanoate; ethyl hexanoate; ethyl 2-methylpropionate; ethyl 3-methylbutanoate; ethyl 2-methylbutanoate; ethyl 2,6,6-trimethylcyclohexa-1,3-diene-l-carboxylate; (1 s,4s)-1,3,3-trimethyl-2-oxabicyclo[2.2.2]octane; methyl oct-2-ynoate; 2-methoxyphenol; ethyl 2-methylpentanoate; 2,6-dimethylhept-5-enal; methyl 2-hydroxy-5-methylbenzoate; methyl 2-methylbutanoate; (2E,6Z)-nona-2,6-dienal; (2E,6Z)-nona-2,6-dien-l-ol; (Z)-non-6-enal; 2-phenyl-ethanal; (2E,5E)-5,6,7-trimethylocta-2,5-dien-4-one; 4-methyl-2-(2-methylprop-1-en-1-yl)tetrahydro-2H-pyran; 2,6,6-trimethylcyclohexa-1,3-dienecarbaldehyde; 4-vinylcyclohex-1-enecarbaldehyde; 4-methylbenzaldehyde; 2-ethoxy-4-methylphenol; (3E,5Z)-undeca-1,3,5-triene; (2E,6Z)-nona-2,6-dienenitrile; and ethyl cyclohexanecarboxylate; 
   and wherein the relative concentration ranges of GROUP A ingredients and of GROUP B ingredients present in amounts such that:   when the GROUP A ingredients comprise from 5- to 10 wt %, then the GROUP B ingredients comprise from 10 to 25 wt %;   when the GROUP A ingredients comprise from 10 and 30 wt %, then the GROUP B ingredients comprise from 5 to 25 wt %;   when the GROUP B ingredients comprise from 5 to 10 wt %, then the GROUP A ingredients comprise between 10 and 30 wt %; and,   when the GROUP B ingredients comprise between 10 and 25 wt %, then the GROUP A ingredients comprise from 5 to 30 wt %; and further   wherein the encapsulated perfume composition is in the form of a slurry comprising one or more core-shell microcapsules, dispersed in an aqueous dispersing medium, wherein the core contains the perfume composition and the shell comprises an aminoplast resin, and wherein the slurry is a stable and pourable suspension.   
     
     
         2 . The encapsulated perfume composition according to  claim 1 , wherein the at least one GROUP A perfume ingredient is selected from the group consisting of: decanal, undecanal, 2-methylundecanal, dodecanal, tridecanal, tetradecanal, 3,7-dimethylocta-1,6-dien-3-ol, (E)-3,7-dimethylnona-1,6-dien-3-ol, 3,7-dimethyloctan-3-ol, 2,6-dimethyloct-7-en-2-ol, 2,6-dimethyloctan-2-ol, and (E)-4-methyldec-3-en-5-ol. 
     
     
         3 . (canceled) 
     
     
         4 . A method of preparing an encapsulated perfume composition according to  claim 1 , the method comprising the steps of:
 forming a perfume composition by mixing GROUP B ingredients with GROUP A ingredients; and,   encapsulating said composition.   
     
     
         5 . (canceled) 
     
     
         6 . A consumer product comprising an encapsulated perfume composition according to  claim 1 . 
     
     
         7 . A consumer product according to  claim 6 , which is a rinse-off home care or is a personal care product. 
     
     
         8 . A rinse-off product according to  claim 7 , which is a cleaning product selected from the group consisting of: a detergent, a shampoo, a soap or a cleansing composition. 
     
     
         9 . A rinse-off product according to  claim 7 , which is a fabric care conditioner or is a hair care conditioner. 
     
     
         10 . A consumer product according to  claim 6 , which is a leave-on personal care product. 
     
     
         11 . A leave-on product according to  claim 10  which is a deodorant product. 
     
     
         12 . A leave on product according to  claim 10  which is an anti-perspirant product.