Disposable article including a nanostructure forming material

Patent metadata

Field	Value
Publication number	US-10071003-B2
Application number	US-201414492400-A
Country	US
Kind code	B2
Filing date	Sep 22, 2014
Priority date	Apr 22, 2008
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

A disposable treatment article or disposable cleaning article that includes a hydrophobic nanoporous material. The disposable treatment or cleaning article is configured to contact and apply the nanoporous material to a surface. The nanoporous material is configured to form hydrophobic nanostructures on a surface upon the application of an activation stimulus. The nanostructures provide an anti-contamination benefit to the surface upon which the nanostructures are disposed.

First claim

What is claimed is:

1. A disposable diaper for receiving and storing bodily exudates adapted to be worn around the lower torso of a wearer, at least a portion of the diaper adapted to provide an anti-contamination benefit to a bodily surfaces contacted by the diaper portion, the disposable diaper comprising:
a. a topsheet, a backsheet, an absorbent core disposed therebetween, a first waist region, a second waist region, and a crotch region disposed between the first and second waist regions;
b. at least one carrier in liquid communication with a body contacting portion of the diaper, the carrier adapted to adhere an hydrophobic activatable nanostructure forming material comprising comprising silica, having a surface and wherein prior to activation, the nanostructure forming material has no nanostructures on the nanostructure forming material's surface, to a surface of the body contacting portion of the diaper such that when the nanostructure forming material is contacted to a bodily surface at least a portion of the nanostructure forming material is deposited on the bodily surface; and
c. one or more hydrophobic activatable nanostructure forming materials releasably joined to the carrier, the one or more nanostructure forming materials adapted to provide a hydrophobic layer of nanostructures to a bodily surface when at least a portion of the nanostructure forming material is activated and deposited on the bodily surface,

wherein the nanostructure forming material comprises at least 90% air; and
wherein the nanostructure forming material comprises particles having an average particle size from 499 μm to 1 mm.

2. The diaper of claim 1 , wherein the activatable nanostructure forming material is disposed on at least one of the topsheet, the backsheet, the absorbent core, the first waist region, the second waist region, and the crotch region.

3. The diaper of claim 1 , wherein the nanostructure forming material is a hydrophobic polymer particle.

4. The diaper of claim 1 , wherein the carrier is a skin care composition.

5. The diaper of claim 4 , wherein the carrier is selected from the group consisting of water, alcohol, and combinations thereof.

6. The diaper of claim 1 , wherein the carrier is an ethanol gel.

7. The diaper of claim 1 , wherein the activatable nanostructure forming material comprises one or more particles having an average diameter of greater than 1 micron prior to activation of the activatable nanostructure forming material.

8. The diaper of claim 1 , wherein the bodily surface on which the hydrophobic nanostructures are disposed has a water contact angle of greater than about 90° after the nanostructures are disposed on the bodily surface.

9. The diaper of claim 1 , wherein the activatable nanostructure forming material is activated by an activation means selected from the group consisting of: application of a crushing force, application of a shear force, application of a crushing pressure, interaction with an enzyme, interaction with water, interaction with alcohol, interaction with an oil, interaction with one or more kinds of bacteria, interaction with a bodily fluid, interaction with a contaminant found on a bodily surface, and combinations thereof.

10. The diaper of claim 1 , wherein the activatable nanostructure forming material is activated by at least one of a shear force and a crushing force of greater than 0.1 N.

11. The diaper of claim 1 , wherein the activatable nanostructure forming material is activated by a crushing pressure of greater than 6 N/m 2 .

Assignees

• Procter & Gamble

Inventors

• Roe Donald Carroll
• Salloum David S
• Wise Brandon Ellis
• Gartstein Vladimir
• Sherman Faiz Fiesal

Classifications

• D06M23/08

  Processes in which the treating agent is applied in powder or granular form (adhesives for multi-layer textile fabrics D06M17/00) · CPC title

• A61Q17/00

  Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings · CPC title

• A61K2800/412

  Microsized, i.e. having sizes between 0.1 and 100 microns · CPC title

• A61F13/51305

  having areas of different permeability · CPC title

• A61F13/8405 Primary

  Additives, e.g. for odour, disinfectant or pH control · CPC title