Silicone and siloxane-based impregnated coating and polymeric materials for conditioning

Patent metadata

Field	Value
Publication number	US-12246344-B2
Application number	US-202016935918-A
Country	US
Kind code	B2
Filing date	Jul 22, 2020
Priority date	Dec 31, 2008
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

The present disclosure relates to a personal care device having a conditioning layer comprising a porous matrix comprising pores and having a hydrophobic conditioning agent fluid dispersed in the pores so that the conditioning agent can migrate to an exposed surface of the conditioning layer and then may be transferred to hair or skin surfaces. The conditioning layer may be prepared by preparing an immiscible conditioning composition comprising a hydrophilic material that is capable of being cured, and a hydrophobic conditioning agent. The immiscible composition is cured to form a conditioning layer that is a porous matrix formed from the hydrophilic material, the porous matrix having the hydrophobic conditioning agent fluid dispersed in the pores thereof.

First claim

The invention claimed is:

1. A method for coating a hair styling device with a conditioning layer for contacting a hair surface, the method comprising
preparing an immiscible composition comprising a hydrophilic material that is capable of being cured by a sol-gel process, and a hydrophobic conditioning agent fluid;
spraying or dip coating the immiscible composition onto a surface of a component of the hair styling device; and
curing the immiscible composition by a sol-gel process to form a conditioning layer on the surface of the component of the hair styling device, the conditioning layer comprising a) a porous matrix formed from the hydrophilic material having pores, and b) having the hydrophobic conditioning agent fluid dispersed in the pores thereof, such that the conditioning agent can migrate to an exposed surface of the conditioning layer and then may be transferred from the conditioning layer on the surface of the component of the hair styling device to a contact surface of the hair;
wherein the hair styling device is selected from the group consisting of a hair straightener, curling iron, comb, brush, curler, dryer, attachment for such a device, and combinations thereof.

2. The method of claim 1 , wherein the hydrophilic material comprises inorganic polymers.

3. The method of claim 1 , wherein the porous matrix is prepared by forming a cationic network of metal alkoxides.

4. The method of claim 1 , wherein the porous matrix comprises additional additives selected from ceramics and pigments.

5. The method of claim 1 , wherein the immiscible composition is introduced onto the surface of the component of the hair styling device by spraying.

6. The method of claim 1 , wherein the pores have a size in the range of from about 50 nanometers to about 50 microns.

7. The method of claim 1 , wherein the conditioning layer comprises from about 0.1% by weight to about 12% by weight of the conditioning agent.

8. The method of claim 1 , wherein the conditioning agent is selected from the group consisting of a silicone-based oil, siloxane-based polymer, silicone derivative, silicone polyester, silicone polyether fluid, dimethyl silicone fluid, dimethyl silicone emulsion, amino silicone fluid, amino silicone emulsion, polydimethylsiloxane, and combinations thereof.

9. The method of claim 1 , wherein the conditioning agent is polydimethylsiloxane.

10. The method of claim 1 , wherein the conditioning agent has a viscosity of from about 5 centistokes to about 5000 centistokes.

11. The method of claim 1 , wherein the conditioning agent has a flash point of at least about 150° C.

12. The method of claim 1 , wherein the immiscible composition is cured at a temperature from about 160° C. to about 300° C. to form the conditioning layer.

13. The method of claim 1 , wherein the immiscible composition is cured at about room temperature to form the conditioning layer.

Assignees

• Spectrum Brands Inc

Inventors

• Everett Jr David W
• Murzynski Maciej
• Gonzalez Giovanni
• Harthun Richard A
• Rosati Daniele

Classifications

• B32B37/08

  characterised by the cooling method · CPC title

• A45D24/22

  Combs with dispensing devices for liquids, pastes or powders · CPC title

• A46B11/00

  Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water (driven brush bodies A46B13/00; {massage apparatus with liquid delivery A61H7/002, A61H2201/105}; applying liquids or other fluent materials to surfaces by liquid carrying members in general, e.g. by pads B05C1/00, B05D1/28) · CPC title

• A46B2200/104

  Hair brush · CPC title

• A46D1/00

  Bristles; Selection of materials for bristles (making artificial bristles D01D, D01F) · CPC title