Hydrophobic surface coated absorbent articles and associated methods
AssigneeThe Procter & Gamble Company
InventorKemal Vatansever Catalan
Life of this patent
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Abstract
The present invention relates to absorbent articles which include one or more components that have been treated with a hydrophobic surface coating intended to render such components impermeable to liquids having relatively low surface tensions.
Claims9
An absorbent article comprising:
- a. a liquid pervious first topsheet having an interior surface and an exterior surface;
- b. a backsheet having an interior surface and an exterior surface wherein said backsheet is attached to said topsheet along a periphery;
- c. an absorbent core disposed between said topsheet and said backsheet;
- d. an additional article component selected from the group consisting of a core cover, a diaper outer cover, an ear, a first cuff, a second cuff, a belt, a wing, an elasticized topsheet, and combinations thereof;
- wherein said component has an interior and an exterior surface;
- and
- e. a hydrophobic surface coating disposed on at least one surface of said backsheet or said additional article component such that the hydrophobic surface coating forms a film on at least a portion of the coated surface and increases the barrier properties of the surface;
- wherein said coating comprises a mixture of at least two silicone polymers having a molecular weight of at least about 15,000 Mw and wherein said silicone polymers are polydimethylsiloxanes selected from the group consisting of vinyl-terminated polydimethsiloxanes, methyl hydrogen dimethylsiloxanes, hydroxyl-terminated polydimethysiloxanes, and combinations thereof and wherein said coating is substantially free of aminosilicones.
A method of increasing the hydrophobicity of an absorbent article component, said method comprising the step of depositing on said component a hydrophobic coating such that the hydrophobic coating forms a film on at least a portion of the coated component and increases the barrier properties of the surface;
- wherein said coating comprises a mixture of at least two silicone polymers having a molecular weight of at least about 15,000 Mw and wherein said silicone polymers are polydimethylsiloxanes selected from the group consisting of vinyl-terminated polydimethsiloxanes, methyl hydrogen dimethylsiloxanes, hydroxyl-terminated polydimethysiloxanes, and combinations thereof and wherein said coating is substantially free of aminosilicones.
A disposable substrate article comprising:
- a. a substrate;
- b. a hydrophobic surface coating disposed on at least one surface of said substrate such that the hydrophobic surface coating forms a film on at least a portion of the coated surface and increases the barrier properties of the surface;
- wherein said coating comprises a mixture of at least two silicone polymers having a molecular weight of at least about 15,000 Mw and wherein said silicone polymers are polydimethylsiloxanes selected from the group consisting of vinyl-terminated polydimethsiloxanes, methyl hydrogen dimethylsiloxanes, hydroxyl-terminated polydimethysiloxanes, and combinations thereof and wherein said coating is substantially free of aminosilicones.
Dependencies are inferred from the claim text.