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

Abstract

The present disclosure generally relates to a personal care device comprising an immiscible conditioning composition formed by combining a hydrophilic matrix, such as a polymeric material, and a hydrophobic conditioning agent. More particularly, the present disclosure relates to a personal care device comprising a hydrophilic matrix, such as a polymeric material, and a hydrophobic conditioning agent dispersed therein, such as a silicone or a siloxane-based agent suitable for transferring from the device surface, and more particularly the matrix surface, to hair or skin surfaces in contact therewith.

1 . A personal care device comprising a component having a surface for contacting hair or skin, the contact surface component comprising an immiscible composition of a hydrophobic conditioning agent and a hydrophilic material, wherein the hydrophobic conditioning agent is a fluid and the hydrophilic material is a porous solid, and further wherein the hydrophobic conditioning agent fluid is dispersed in the pores of the solid matrix of the hydrophilic material. 
     
     
         2 . The device 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. 
     
     
         3 . The device of  claim 1 , wherein the conditioning agent is polydimethylsiloxane. 
     
     
         4 . The device of  claim 1 , wherein the conditioning agent has a viscosity of from about 5 centistokes to about 5000 centistokes. 
     
     
         5 . The device of  claim 1 , wherein the conditioning agent has a flash point of at least about 150° C. 
     
     
         6 . The device of  claim 1 , wherein the composition comprises from about 0.1% by weight to about 12% by weight of the conditioning agent. 
     
     
         7 . The device of  claim 1 , wherein the composition comprises from about 90% by weight to less than about 100% by weight of a hydrophilic polymeric material. 
     
     
         8 . The device of  claim 1 , wherein the hydrophilic material is a polymer selected from the group consisting of Nylon 6, Nylon 6,6, Nylon 6,10, Nylon 6,12, acrylonitrile butadiene styrene, acetal, olefinic thermoplastic elastomer, thermoplastic elastomer, polytrimethylene terephthalate, and combinations thereof. 
     
     
         9 . The device of  claim 1 , wherein the porous matrix comprises pores having a size in the range of from about 50 nanometers to about 50 microns. 
     
     
         10 . The device of  claim 1 , wherein the device is a hair styling device. 
     
     
         11 . The device of  claim 10 , wherein the hair styling device is selected from the group consisting of a hair straightener, curling iron, comb, epilator, brush, shaver, razor, curler, trimmer, clipper, dryer, attachment for such a device, and combinations thereof. 
     
     
         12 . A personal care device comprising a substrate and a conditioning layer for contacting a hair or skin surface, the conditioning contact layer comprising a porous matrix of a solid hydrophilic material and a hydrophobic conditioning agent fluid dispersed in the pores of the solid matrix of hydrophilic material. 
     
     
         13 . The device of  claim 12 , 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. 
     
     
         14 . The device of  claim 12 , wherein the conditioning agent is polydimethylsiloxane. 
     
     
         15 . The device of  claim 12 , wherein the conditioning layer has a thickness of from about 5 microns to about 100 microns. 
     
     
         16 . The device of  claim 12 , wherein the substrate is aluminum. 
     
     
         17 . The device of  claim 12 , wherein the substrate is steel. 
     
     
         18 . The device of  claim 12 , wherein the porous matrix comprises pores having a size in the range of from about 50 nanometers to about 50 microns. 
     
     
         19 . The device of  claim 12 , wherein the conditioning agent has a viscosity of from about 5 centistokes to about 5000 centistokes. 
     
     
         20 . The device of  claim 12 , wherein the conditioning agent has a flash point of at least about 150° C. 
     
     
         21 . The device of  claim 12 , wherein the porous matrix comprises from about 0.1% by weight to about 12% by weight of the conditioning agent. 
     
     
         22 . The device of  claim 12 , wherein the porous matrix further comprises from about 40% by weight to about 99% by weight of a hydrophilic material selected from a polymeric material or a ceramic material. 
     
     
         23 . The device of  claim 12 , wherein the device is a hair styling device. 
     
     
         24 . The device of  claim 23 , wherein the hair styling device is selected from the group consisting of a hair straightener, curling iron, comb, epilator, brush, shaver, razor, curler, trimmer, clipper, dryer, attachment for such a device, and combinations thereof. 
     
     
         25 . A method for making a personal care device comprising a component having a contact surface, the contact surface component comprising a solid matrix of a porous, hydrophilic material and a hydrophobic conditioning agent fluid dispersed in the pores of the solid matrix, the method comprising:
 forming an immiscible composition comprising a hydrophobic conditioning agent fluid and a hydrophilic material;   extruding the immiscible composition to form a personal care device; and,   cooling the extruded device;   wherein extrusion and cooling are carried out under conditions sufficient for the hydrophilic material to form a porous solid matrix having the hydrophobic conditioning agent fluid disperse therein.   
     
     
         26 . A method for coating a personal care device with a conditioning layer for contacting a hair or skin surface, the conditioning layer comprising a solid matrix of a porous, hydrophilic material and a hydrophobic conditioning agent fluid dispersed in the pores of the solid matrix, the method comprising:
 preparing an immiscible composition comprising a hydrophobic conditioning agent fluid and a hydrophilic material;   forming the immiscible composition into a layer by a sol-gel process, wherein the hydrophilic polymeric material is a porous solid matrix having the hydrophobic conditioning agent fluid dispersed in the pores thereof; and,   applying the layer to a surface of a component the personal care device.