Compositions for imparting hydrophobicity and water repellency to hair
View Patent ↗Compositions and methods are disclosed for imparting water repellency to the hair. The compositions generally comprise a first hydrophobic particulate material having a coefficient of dynamic friction of 0.5 or greater in combination with a second hydrophobic particulate material having a coefficient of dynamic friction less than 0.5.
1. A composition for rendering a keratin fiber water-repellant comprising:
(a) a first hydrophobic particulate material consisting of octylsilyl-functionalized fumed alumina;
(b) a second hydrophobic particulate material comprising substantially spherical particles of a polymer, said second hydrophobic particulate material having a coefficient of dynamic friction less than 0.5 and selected from the group consisting of polyethylene, polypropylene, polytetrafluoroethylene (PTFE), polyvinylchloride (PVC), polyvinyledenefluoride (PVDF), polyamide-imide, polymethylmethacrylate (PMMA), polyetheretherketone (PEEK), polyethylene terephthalate polyester (PETP), polystyrene, polydimethylsiloxanes polymethylsilsesquioxane, polyamide powder, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, silicone elastomer, Polysilicones, and combinations thereof;
(c) optionally, a film former,
(d) optionally, at least one other active or inactive agent, and
(e) a volatile solvent;
wherein said first and second hydrophobic particulate materials are collectively from about 0.01% to about 10% by weight, based on the entire weight of the composition;
wherein the weight ratio of said first hydrophobic particulate material to said second hydrophobic particulate material is from about 1:10 to about 10:1; and
wherein the aggregate weight percentage of all non-volatile liquid constituents in said composition is less than 10%, based on the entire weight of the composition.
2. The composition according to claim 1 , wherein said second hydrophobic particulate material has a coefficient of dynamic friction less than 0.3.
3. The composition according to claim 1 , wherein said second hydrophobic particulate material has a coefficient of dynamic friction less than 0.1.
4. The composition according to claim 1 , further comprising a shine enhancer.
5. The composition according to claim 4 , comprising from 0.05 to 2.5% by weight of a shine enhancer.
6. The composition according to claim 5 , wherein said shine enhancer is selected from the group consisting of hemi-spherical methyl methacrylate crosspolymer, silicone fluids, Phenyltrimethicone, amodimethicone, and combinations thereof.
7. The composition according to claim 1 , wherein said volatile solvent comprises a volatile silicone.
8. The composition according to claim 1 , wherein said volatile solvent comprises a volatile silicone and ethanol.
9. The composition according to claim 7 , wherein the composition is an emulsion and the volatile solvent further comprises water.
10. The composition according to claim 1 , wherein the volatile solvent comprises ethanol.
11. The composition of claim 1 , wherein the volatile solvent is present in an amount of from 80% to 99.8% by weight.
12. The composition according to claim 1 , wherein said first and second hydrophobic particulate materials collectively are from about 0.1% to about 5% by weight of said composition.
13. The composition according to claim 12 , wherein the weight ratio of the first hydrophobic particulate material to the second hydrophobic particulate material is from about 1:5 to about 2:1.
14. The composition according to claim 12 , wherein the weight ratio of the first hydrophobic particulate material to the second hydrophobic particulate material is from about 1:5 to about 1:1.
15. The composition according to claim 1 , wherein said second hydrophobic particulate material has a coefficient of dynamic friction less than 0.2.
16. The composition according to claim 1 , wherein said second hydrophobic particulate material comprises substantially spherical particles of Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer.
17. The composition according to claim 16 , wherein said second hydrophobic particulate material has a coefficient of dynamic friction of less than 0.1.
18. The composition according to claim 1 , wherein said second hydrophobic particulate material is VinylDimethicone/Methicone Silsesquioxane Crosspolymer (INCI).
19. The composition according to claim 18 , wherein the composition is an emulsion and the volatile solvent comprises water.
20. The composition according to claim 18 , wherein the volatile solvent comprises ethanol.
21. A method for rendering keratin fibers on a mammal water-repellant comprising applying thereto the composition according to claim 1 and allowing the volatile solvents present to evaporate.
22. The method according to claim 21 , wherein said volatile solvent comprises a volatile silicone.
23. The method according to claim 21 , wherein said volatile solvent comprises a volatile silicone and ethanol.
24. The method according to claim 22 , wherein the composition is an emulsion and the volatile solvent further comprises water.
25. The method according to claim 21 , wherein the volatile solvent comprises ethanol.
26. The method according to claim 21 , wherein said second hydrophobic particulate material is VinylDimethicone/Methicone Silsesquioxane Crosspolymer (INCI).
27. The method according to claim 21 , wherein the keratin fibers are scalp hair.
28. A composition for rendering a keratin fiber water-repellant comprising:
(a) a first hydrophobic particulate material consisting of octylsilyl-functionalized fumed alumina;
(b) a second hydrophobic particulate material comprising substantially spherical particles of a polymer and having a coefficient of dynamic friction less than 0.5 selected from the group consisting of polyethylene, polypropylene, polytetrafluoroethylene (PTFE), polyvinylchloride (PVC), polyvinyledenefluoride (PVDF), polyamide-imide, polymethylmethacrylate (PMMA), polyetheretherketone (PEEK), polyethylene terephthalate polyester (PETP), polystyrene, polydimethylsiloxanes, bol meth lsilses uioxane Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, silicone elastomer, Polysilicones, and combinations thereof;
(c) a film former,
(d) at least one other active or inactive agent, and
(e) a volatile solvent;
wherein said first and second hydrophobic particulate materials are collectively from about 0.01% to about 10% by weight, based on the entire weight of the composition; wherein
the weight ratio of said first hydrophobic particulate material to said second hydrophobic particulate material is from about 1:10 to about 10:1; and wherein the aggregate weight percentage of all non-volatile liquid constituents in said composition is less than 10%, based on the entire weight of the composition.
29. The composition according to claim 28 , wherein said second hydrophobic particulate material comprises VinylDimethicone/Methicone Silsesquioxane Crosspolymer (NCI).
30. A method for rendering keratin fibers on a mammal water-repellant comprising applying thereto the composition according to claim 28 and allowing the volatile solvents present to evaporate.