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EP-3283172-B1 - SOLID CONDITIONING COMPOSITION

EP3283172B1EP 3283172 B1EP3283172 B1EP 3283172B1EP-3283172-B1

Inventors

  • LYNCH, MATTHEW, LAWRENCE
  • KUTAY, Benjamin, John
  • WILLMAN, JOANNE, ROBERTA
  • ILLIE, Brandon, Philip
  • BLYTH, KEVIN, GRAHAM
  • BARRERA, Carola
  • SAWIN, PHILIP, ANDREW
  • GLENN, ROBERT, WAYNE, JR.
  • AOUAD, YOUSEF, GEORGES
  • FLOOD, JANINE, ANNE

Dates

Publication Date
20260506
Application Date
20160413

Claims (20)

  1. A consumer product composition comprising a non-porous, aqueous solution dissolvable solid structure comprising from 50% to 95%, by weight of the consumer product composition, of a carrier material, wherein said carrier material is a polyethylene glycol material, and a hydrophobic conditioning agent disposed within said carrier material, wherein said hydrophobic conditioning agent has a viscosity at 25°C of at least about 0.01 Pa·s, and wherein said hydrophobic conditioning agent is selected from the group consisting of silicone materials, organic conditioning oils, hydrocarbon oils, fatty esters, metathesized unsaturated polyol esters, silane-modified oils, and mixtures thereof; wherein said consumer product composition is in the form of a plurality of beads, having an average maximum cross-sectional dimension of from 0.05 to 50mm and having an average aspect ratio of from 1:1 to 100:1; and wherein the mean particle size of said hydrophobic conditioning agent disposed within said carrier material is from about 2 µm to about 2000 µm.
  2. The consumer product composition of claim 1, wherein said hydrophobic conditioning agent has a viscosity at 25°C of from about 0.1 to about 2000 Pa·s, preferably from about 0.1 to about 150 Pa·s, preferably from about 0.1 to about 20 Pa·s.
  3. The consumer product composition of any one of claims 1 or 2, wherein said consumer product composition comprises from about 5% to about 50%, preferably from about 5% to about 40%, preferably from about 10% to about 40%, by weight of said consumer product composition, of said hydrophobic conditioning agent.
  4. The consumer product composition of any one of the preceding claims, wherein said consumer product composition comprises from 60% to 95%, by weight of the consumer product composition, of said carrier material.
  5. The consumer product composition of any one of the preceding claims, wherein said hydrophobic conditioning agent has a viscosity at 70°C of from about 0.1 to about 2000 Pa·s, preferably from about 0.1 to about 150 Pa·s, preferably from about 0.2 to about 20 Pa·s.
  6. The consumer product composition of any one of the preceding claims, wherein said hydrophobic conditioning agent is a liquid at 25°C.
  7. The consumer product composition of any one of the preceding claims, wherein said carrier material has a viscosity at 70°C of from about 0.005 to about 350 Pa·s, preferably from about 0.005 to about 100 Pa·s, preferably from about 0.05 to about 50 Pa·s.
  8. The consumer product composition of any one of the preceding claims, wherein said carrier material has a melting point of from about 25°C to about 120°C, preferably from about 35°C to about 100°C, preferably from about 40°C to about 80°C.
  9. The consumer product composition of any one of the preceding claims, wherein said carrier material is a solid at 25°C.
  10. The consumer product composition of any one of the preceding claims, wherein a ratio of the viscosity of said hydrophobic conditioning agent at 70°C to the viscosity of said carrier material at 70°C is from about 1000:1 to about 1:1000, preferably from about 100:1 to about 1:100, preferably from about 10:1 to about 1:10.
  11. The consumer product composition of any one of the preceding claims, wherein said carrier material disperses completely in 25°C water within a Dispersion Time of less than 60 minutes, preferably less than about 30 minutes, preferably less than about 10 minutes.
  12. The consumer product composition of any one of the preceding claims, wherein the mean particle size of said hydrophobic conditioning agent disposed within said carrier material is from about 2 µm to about 500 µm, preferably from about 2 µm to about 120 µm.
  13. The consumer product composition of any one of the preceding claims, wherein said hydrophobic conditioning agent comprises polyisobutene or a silicone material, preferably a terminal aminosilicone or a polydimethylsiloxane.
  14. The consumer product composition of any one of the preceding claims, wherein said carrier material comprises a polyethylene glycol material, or mixtures thereof, having a molecular weight of from about 200 to about 50,000, preferably from about 500 to about 20,000, preferably from about 1,000 to about 15,000.
  15. The consumer product composition of any one of the preceding claims, wherein said consumer product composition is in the form of a plurality of beads having an average maximum cross-sectional dimension of from about 0.3 to about 10 mm, preferably from about 0.5 to about 5 mm.
  16. The consumer product composition of any one of the preceding claims, wherein said plurality of beads having an average aspect ratio of from 1:1 to 10:1.
  17. The consumer product composition of any one of the preceding claims, wherein said consumer product composition comprises a ratio of the level of carrier material to the level of hydrophobic conditioning agent of from about 1:1 to about 20:1, preferably from about 1:1 to about 10:1, preferably from about 1:1 to about 5:1.
  18. The consumer product composition of any one of the preceding claims, wherein said consumer product composition comprises less than about 5%, preferably less than about 3%, preferably less than about 1%, by weight of said consumer product composition, of water.
  19. The consumer product composition of any one of the preceding claims, wherein said consumer product composition comprises less than about 5%, preferably less than about 3%, preferably less than about 1%, by weight of said consumer product composition, of detersive surfactant and/or cleansing surfactant.
  20. The consumer product composition of any one of the preceding claims, wherein said consumer product composition is a non-porous solid consumer product composition.

Description

FIELD OF THE INVENTION The present invention relates to a consumer product composition comprising a non-porous dissolvable solid structure and a hydrophobic conditioning agent disposed therein. BACKGROUND OF THE INVENTION Consumer product compositions often contain benefit agents, such as conditioning agents, to provide enhancements to surfaces treated with the consumer product composition such as improved hand feel benefits (e.g. soft, silky feel), softness benefits, and the like. Such benefits are desired by consumers of fabric care products, such as laundry detergents or fabric softeners, skin care products, such as skin moisturizing lotions, and hair care products, like shampoo or hair conditioners. Such consumer product compositions, such as fabric softeners or hair conditioners, are typically provided in the form of aqueous liquid products. Since many desirable conditioning agents are hydrophobic in nature, it can be a challenge to create a stable aqueous liquid formulation containing hydrophobic conditioning agents. As a result, such conditioning agents are typically incorporated in aqueous liquid compositions in the form of emulsions or other systems comprising emulsion droplets/particles having relatively small particle size benefits agents, typically smaller than 1 µm. One drawback of having small particle size conditioning agents is that it can be difficult to deposit and retain small particle size benefit agents on the treated surface, especially if the surfaces are being treated in the context of an aqueous treatment liquor such as a detergent treatment liquor in a washing machine or a treatment liquor that a consumer uses in the shower when shampooing and/or conditioning her hair. As a result, the small particle size conditioning agents can be easily washed down the drain and therefore wasted, as opposed to being deposited and retained on surfaces to enhance the surface. In order to address such drawbacks, attempts have been made to provide delivery systems, such as encapsulation systems, for the hydrophobic conditioning agents in order to enhance their deposition and retention on surfaces while remaining stable in an aqueous liquid product. These delivery systems, however, can limit the effectiveness of the conditioning agents or lead to other issues. It is therefore desired to provide a consumer product composition that contains relatively large particle size conditioning agents without the need for liquid delivery systems that can interfere with the effectiveness of the conditioning agent being deposited on the treated surfaces. WO9208444 A1 discusses a mild skin cleansing composition in the form of a bar comprising from about 0.5 percent to about 20 percent of a mixture of a silicone gum and a silicone fluid. US6174845 BA discusses bar compositions in which an emollient composition comprising thickened entrapped emollient is added to a base bar composition at or during time of extrusion to form macroscopic, concentrated domains of emollient droplets. SUMMARY OF THE INVENTION The present invention relates to a consumer product composition in accordance with the claims. The non-porous dissolvable solid structure comprises carrier material within which the hydrophobic conditioning agent is disposed. The carrier material is selected such that the desired mean particle size of the hydrophobic conditioning agent can be "set" in the carrier material of the non-porous dissolvable solid structure. The desired mean particle size of hydrophobic conditioning agent in the consumer product composition will generally be in the range of from about 2 µm to about 2,000 µm. The optimal particle size of the hydrophobic conditioning agent may depend upon the intended use of the consumer product composition. For instance, a fabric softening product composition for conditioning fabrics in a laundry process will preferably contain a hydrophobic conditioning agent having a mean particle size of from about 2 µm to about 500 µm, more preferably from about 2 µm to about 120 µm, more preferably from about 2 um to about 70 um; whereas a hair conditioning product composition for conditioning hair in a hair washing process will preferably contain a hydrophobic conditioning agent having an average particle size of from about 10 µm to about 2,000 µm. Since the consumer product composition is in a solid, non-porous form, the mean particle size of the hydrophobic conditioning agent will generally remain constant during packaging, shipping and storage of the consumer product composition. When the consumer product composition is ready for use, it can be dissolved in an aqueous solution to form an aqueous treatment liquor. Upon dissolution, the hydrophobic conditioning agent will tend to maintain its mean particle size from the consumer product composition and into the aqueous treatment liquor. The relatively large particles of hydrophobic conditioning agent in the aqueous treatment liquor will tend to be more effectively depos