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US 8,999,307 B2Granted
Compositions for imparting superhydrophobicity
AssigneeAvon Products, Inc.
InventorsRahul A. Ranade, Mark S. Garrison, Freda E. Robinson, Giovana A. Sandstrom
Life of this patent
Estimating the term…
Abstract
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.
Claims28
A method for rendering keratin fiber water-repellant comprising applying thereto a composition comprising:
- (a) a first hydrophobic particulate material, wherein the first hydrophobic particulate material consisting of octylsilyl-functionalized fumed alumina;
- (b) a second hydrophobic particulate material having a coefficient of dynamic friction less than 0.5 wherein said second hydrophobic particulate material comprises substantially spherical particles of a polymer 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, one or more of:
- (i) a shine enhancing agent, (ii) a hydrophobic film former, (iii) non-volatile liquid constituents, (iv) a filler, (v) a cationic hair conditioning agent, and (vi) other active and inactive ingredients;
- and
- (d) a volatile solvent;
- wherein said first and second hydrophobic particulate materials collectively are from about 0.01% to about 10% by weight, based on the entire weight of the composition;
- and wherein a 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 an aggregate weight percentage of all non-volatile liquid constituents in said composition is less than 10%, based on the entire weight of the composition;
- and
- allowing the volatile solvent present to evaporate.
8 more elements
A method for rendering keratin fiber water-repellant comprising applying thereto a composition comprising:
- (a) a first hydrophobic particulate material, wherein the first hydrophobic particulate material consisting of octylsilyl-functionalized fumed alumina;
- (b) a second hydrophobic particulate material having a coefficient of dynamic friction less than 0.5 wherein the second hydrophobic particulate material is VinylDimethicone/Methicone Silsesquioxane Crosspolymer (INCI);
- (c) optionally, one or more of:
- (i) a shine enhancing agent, (ii) a hydrophobic film former, (iii) non-volatile liquid constituents, (iv) a filler, (v) a cationic hair conditioning agent, and (vi) other active and inactive ingredients;
- and
- (d) a volatile solvent;
- wherein said first and second hydrophobic particulate materials collectively are from about 0.01% to about 10% by weight, based on the entire weight of the composition;
- and wherein a 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 an aggregate weight percentage of all non-volatile liquid constituents in said composition is less than 10%, based on the entire weight of the composition;
- and
- allowing the volatile solvent present to evaporate.
8 more elements
Dependencies are inferred from the claim text.