Benefit agent containing delivery particle

Abstract

The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, cleaning or fabric care compositions, such particles increase the efficiency of benefit agent delivery, thereby allowing reduced amounts of benefit agents to be employed. In addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed.

1 .- 37 . (canceled) 
     
     
         38 . A composition comprising:
 a) benefit agent delivery particles,
 said benefit agent delivery particles comprising at least one self assembling graft co-polymer and a benefit agent,
 said benefit agent being encapsulated in said self assembling graft co-polymer, and/or being partially embedded in said self assembling graft co-polymer; and 
 
   b) water.   
     
     
         39 . The composition according to  claim 38 , wherein said benefit agent delivery particles have a self assembly index of from 1 to about 100. 
     
     
         40 . The composition according to  claim 38 , wherein said benefit agent delivery particles have a SAXS index of from 1 to about 100. 
     
     
         41 . The composition according to  claim 38 , wherein said benefit agent particles have at least one particle having a diameter of from about 0.5 microns to about 5000 microns. 
     
     
         42 . The composition according to  claim 38 , wherein said benefit agent particles are characterized by a weight ratio of said benefit agent to said self assembling graft co-polymer of from about 1:20 to about 20:1. 
     
     
         43 . The composition according to  claim 38 , wherein said benefit agent is selected from the group consisting of perfume raw materials, silicone oils, waxes, hydrocarbons, higher fatty acids, essential oils, lipids, skin coolants, vitamins, sunscreens, antioxidants, glycerine, catalysts, bleach particles, silicon dioxide particles, malodor reducing agents, odor-controlling materials, chelating agents, antistatic agents, softening agents, insect and moth repelling agents, colorants, antioxidants, chelants, bodying agents, drape and form control agents, smoothness agents, wrinkle control agents, sanitization agents, disinfecting agents, germ control agents, mold control agents, mildew control agents, antiviral agents, drying agents, stain resistance agents, soil release agents, fabric refreshing agents and freshness extending agents, chlorine bleach odor control agents, dye fixatives, dye transfer inhibitors, color maintenance agents, optical brighteners, color restoration/rejuvenation agents, anti-fading agents, whiteness enhancers, anti-abrasion agents, wear resistance agents, fabric integrity agents, anti-wear agents, anti-pilling agents, defoamers, anti-foaming agents, UV protection agents for fabrics and skin, sun fade inhibitors, anti-allergenic agents, enzymes, water proofing agents, fabric comfort agents, shrinkage resistance agents, stretch resistance agents, stretch recovery agents, skin care agents, glycerin, natural actives, aloe vera, vitamin E, shea butter, cocoa butter, brighteners, antibacterial actives, antiperspirant actives, cationic polymers, dyes, hueing dyes, skin heath agents, skin restoration agents, anti skin aging agents, facial contrast agents, anti dandruff agents, skin lightening agents, anti-acne agents, emollients, non-steroidal anti-inflammatory agents, topical anaesthetics, artificial tanning agents, anti-microbial and anti-fungal actives, skin soothing agents, skin barrier repair agents, anti-skin atrophy actives, lipids, sebum inhibitors, sebum inhibitors, skin sensates, protease inhibitors, anti-itch agents, desquamation enzyme enhancers, anti-glycation agents, and mixtures thereof. 
     
     
         44 . The composition according to  claim 38 , wherein said benefit agent is selected from the group consisting of enzymes, bleaching systems, silicones, perfumes, fabric hueing agents, and mixtures thereof. 
     
     
         45 . The composition according to  claim 38 , wherein said benefit agent comprises silicone. 
     
     
         46 . The composition according to  claim 38 , wherein said benefit agent comprises perfume. 
     
     
         47 . The composition according to  claim 38 , wherein said benefit agent comprises enzymes. 
     
     
         48 . The composition according to  claim 38 , wherein said self-assembling graft co-polymer comprises a polyalkylene glycol backbone. 
     
     
         49 . The composition according to  claim 38 , wherein said self assembling graft co-polymer comprises a polyalkylene glycol backbone,
 said co-polymer further comprising vinyl acetate moieties that are covalently attached to said polyalkylene glycol backbone.   
     
     
         50 . The composition according to  claim 51 , wherein said self assembling graft co-polymer comprises from 1 to about 10 vinyl acetate grafts per polyalkylene glycol backbone. 
     
     
         51 . The composition according to  claim 38 , wherein said self assembling graft co-polymer has a weight-average molecular weight of from about 2000 Daltons to about 250,000 Daltons. 
     
     
         52 . The composition according to  claim 38 , wherein said composition comprises a free water content of about 96% or less. 
     
     
         53 . The composition according to  claim 38 , wherein said composition further comprises a surfactant selected from the group consisting of a cationic surfactant, an anionic surfactant, a nonionic surfactant, a zwitterionic surfactant, an ampholytic surfactant, and mixtures thereof. 
     
     
         54 . The composition according to  claim 38 , wherein said composition further comprises a quaternary ammonium surfactant. 
     
     
         55 . A composition according to  claim 38 , wherein said composition further comprises a water binding agent selected from the group consisting of organic acids, salts of organic acids, humectants, desiccants, natural sugar substitutes, artificial sugar substitutes, hydrogels, and mixtures thereof. 
     
     
         56 . The composition according to  claim 38 , wherein said composition is selected from the group consisting of:
 (i) a unit dose composition comprising free water content of from about 5% to about 20%;   (ii) a liquid detergent comprising free water content of from about 10% to about 70%;   (iii) a liquid fabric enhancer comprising free water content of from about 80% to about 95%;   (iv) a surface care cleaning composition comprising free water content of from about 85% to about 96%;   (v) a skin care composition comprising free water content of from about 20% to about 96%; and   (vi) a hair cleaning and/or conditioning composition comprising free water content of from about 20% to about 96%.   
     
     
         57 . A method of treating a surface or fabric, the method comprising the step of contacting the surface or the fabric with the composition according to  claim 38 .