Delivery systems comprising malodor reduction compositions

Abstract

The present invention relates to delivery systems comprising malodor reduction compositions, methods of making such delivery systems and consumer products made with such delivery systems. Such delivery systems do not unduely interfere with the scent of the perfumed or unperfumed delivery system, perfumed or unperfumed products comprising such delivery systems and any perfumed or unperfumed situs that is treated with such products.

What is claimed is: 
     
         1 . A delivery system comprising, based on total delivery system weight, a sum total of from about 0.00025% to about 30% of a benefit agent that comprises one or more malodor reduction materials, each of said malodor reduction materials having a MORV of at least 0.5, said sum total of malodor reduction materials having a Blocker Index of less than 3 and/or a Blocker Index average of 3 to about 0.001; and optionally an additional benefit agent. 
     
     
         2 . A delivery system according to  claim 1 , wherein said malodor reduction materials have a Fragrance Fidelity Index of less than 3. 
     
     
         3 . A delivery system according to  claim 2  comprising from about 0.01% to about 80% of said malodor reduction materials. 
     
     
         4 . A delivery system according to  claim 3  selected from the group consisting of:
 a) a Polymer Assisted Delivery (PAD) system comprising, based on total benefit agent weight, from about 0.1% to about 50% Malodor reducing composition 
 b) a Molecule-Assisted Delivery (MAD) system, comprising, based on total benefit agent weight, from about 0.1% to about 75% Malodor reducing composition. 
 c) a Cyclodextrin (CD) system comprising, based on total benefit agent weight, from about 0.1% to about 20% Malodor reducing composition. 
 d) a Starch Encapsulated Accord (SEA) system comprising, based on total benefit agent weight, from about 0.1% to about 80% Malodor reducing composition. 
 e) a Zeolite & Inorganic Carrier (ZIC) system comprising, based on total benefit agent weight, from about 0.1% to about 30% Malodor reducing composition. 
 
     
     
         5 . A Polymer Assisted Delivery (PAD) system according to  claim 4 , wherein said Polymer Assisted Delivery (PAD) system comprises a Polymer Assisted Delivery (PAD) Reservoir system. 
     
     
         6 . The Polymer Assisted Delivery (PAD) Reservoir system according to  claim 5 , said Polymer Assisted Delivery (PAD) Reservoir system being a perfume delivery particle that comprises a shell material and a core material, said shell material encapsulating said core material, said core material comprising said malodor reduction materials and said shell comprising a material selected from the group consisting of polyethylenes; polyamides; polystyrenes; polyisoprenes; polycarbonates; polyesters; polyacrylates; aminoplasts; polyvinylamine, polyvinyl formamide, polyolefins, polyvinyl alcohol, polysaccharides, gelatin; shellac, epoxy resins, vinyl polymers, water insoluble inorganics, silicone and mixtures thereof. 
     
     
         7 . The Polymer Assisted Delivery (PAD) Reservoir system of  claim 6  wherein said shell comprises melamine formaldehyde and/or cross linked melamine formaldehyde. 
     
     
         8 . The Polymer Assisted Delivery (PAD) Reservoir system of  claim 6  wherein said shell is coated by a water-soluble cationic polymer selected from the group that consists of polysaccharides, cationically modified starch and cationically modified guar, polysiloxanes, dimethyldiallylammonium polyhalogenides, copolymers of dimethyldiallylammonium polychloride and vinyl pyrrolidone, acrylamides, imidazoles, imidazolinium halogenides and imidazolium halogenides and polyvinyl amine and its copolymers with N-vinyl formamide 
     
     
         9 . The Polymer Assisted Delivery (PAD) Reservoir system of  claim 8  wherein: said coating that coats said shell, comprises a cationic polymer and an anionic polymer. 
     
     
         10 . The Polymer Assisted Delivery (PAD) Reservoir system of  claim 9  wherein said cationic polymer comprises hydroxyl ethyl cellulose; and said anionic polymer comprises carboxyl methyl cellulose. 
     
     
         11 . A delivery system according to  claim 6 , wherein said core comprises a malodor reduction material selected from the group consisting of (E)-3,7-dimethylocta-2,6-dien-1-yl palmitate; 1-((2-(tert-butyl)cyclohexyl)oxy)butan-2-ol; 2-(8-isopropyl-6-methylbicyclo[2.2.2]oct-5-en-2-yl)-1,3-dioxolane; 2,2,6,6,7,8,8-heptamethyldecahydro-2H-indeno[4,5-b]furan; 2,3-dihydro-1,1-1H-dimethyl-indene-ar-propanal; (R,Z)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)pent-1-en-3-one; 3-(6,6-dimethylbicyclo[3.1.1]hept-2-en-2-yl)-2,2-dimethylpropanal; (Z)-cyclooct-4-en-1-yl methyl carbonate; ethyl dodecanoate; (Z)-3,7-dimethylocta-1,3,6-triene; (E)-3,7-dimethylocta-1,3,6-triene; 3a-isopropyl-2,6-dimethyloctahydrobenzofuran; 1,3,4,6,7,8 alpha-hexahydro-1,1,5,5-tetramethyl-2H-2,4 alpha-methanophthalen-8(5H)-one; 3a,4,5,6,7,7a-hexahydro-1H-4,7-methanoind3en-1-yl propanoate; (E)-cyclohexadec-5-en-1-one; (1-methyl-2-((1,2,2-trimethylbicyclo[3.1.0]hexan-3-yl)methyl)cyclopropyl)methanol; (E)-oxacyclohexadec-13-en-2-one; (E)-dec-4-enal; (E)-1,1-dimethoxy-3,7-dimethylocta-2,6-diene; 1,1,2,3,3-pentamethyl-1,2,3,5,6,7-hexahydro-4H-inden-4-one; oxydibenzene; 3a,4,5,6,7,7a-hexahydro-1H-4,7-methanoinden-6-yl acetate; 3-methyl-5-phenylpentan-1-ol; 3-(3,3-dimethyl-2,3-dihydro-1H-inden-5-yl)propanal; 3,4,4a,5,6,7,8,8a-octahydrochromen-2-one; 7-methyloctyl acetate; 3,5,5-trimethyl hexyl acetate; 4,5-epoxy-4,11,11-trimethyl-8-methylenebicyclo(7.2.0)undecane; 8,8-dimethyl-3a,4,5,6,7,7a-hexahydro-1H-4,7-methanoinden-6-yl propionate; 1-(5,5-dimethylcyclohex-1-en-1-yl)pent-4-en-1-one; cis-6-nonen-1-ol; Dodecanenitrile; 2-isopropyl-5-methylphenol; 2,6-di-tert-butyl-4-methylphenol and mixtures thereof. 
     
     
         12 . A delivery system according to any of  claim 9 , wherein said core material comprises said one or more malodor reduction materials and said one or more malodor reduction materials having a vapor pressure of greater than 0.01 torr. 
     
     
         13 . A consumer product comprising delivery system according to  claim 1  and a consumer product ingredient. 
     
     
         14 . A method of treating and/or cleaning a situs, said method comprising
 a) optionally washing, rinsing and/or drying said situs;   b) contacting said situs with a consumer product according to  claim 13 ; and   c) optionally washing, rinsing and/or drying said situs.   
     
     
         15 . A situs treated with a consumer product according to  claim 13 . 
     
     
         16 . A process of making a perfume microcapsule comprising:
 a) preparing a first solution comprising, based on total solution weight, from about 20% to about 90%, of a first emulsifier and a first resin, the ratio of said first emulsifier and said first resin being from about 0.1:1 to about 10:1;   b) preparing a second solution comprising based on total solution weight from about 20% to about 95% water, of a second emulsifier and a second resin, the ratio of said second emulsifier and said second resin being from about 0:1 to about 3:1;   c)combining a core material comprising a perfume according to  claim 1  and said first solution to form a first composition;   d) emulsifying said first composition;   e) combining said first composition and said second solution to form a second composition and optionally combining any processing aids and said second composition;)   f) mixing said second composition for at least 15 minutes at a temperature of from about 25° C. to about 100° C. and optionally combining any processing aids to said second composition;   g) optionally combining any scavenger material, structurant, and/or anti-agglomeration agent with said second composition during step f) or thereafter   h) Optionally spray drying said second composition.