Absorbent cores for absorbent articles and method for making same
First Claim
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1. An absorbent article comprising:
- a barrier layer;
a cover layer extending substantially parallel to said barrier layer; and
a superabsorbent polymer interposed between said cover layer and said barrier layer, said superabsorbent polymer being adhered to said article in a pattern configured to distribute fluid in said absorbent article, wherein at least one portion of said absorbent article extending essentially completely across said absorbent article is substantially devoid of said superabsorbent polymer.
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Abstract
An absorbent article is provided, including a barrier layer, a cover layer extending substantially parallel to the barrier layer, and a superabsorbent polymer interposed between the cover layer and the barrier layer. The superabsorbent polymer is adhered to the article in a pattern configured to distribute fluid in the absorbent article, wherein at least one portion extending essentially completely across the absorbent article is substantially devoid of the superabsorbent polymer.
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Citations
16 Claims
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1. An absorbent article comprising:
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a barrier layer;
a cover layer extending substantially parallel to said barrier layer; and
a superabsorbent polymer interposed between said cover layer and said barrier layer, said superabsorbent polymer being adhered to said article in a pattern configured to distribute fluid in said absorbent article, wherein at least one portion of said absorbent article extending essentially completely across said absorbent article is substantially devoid of said superabsorbent polymer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of making an absorbent article comprising the steps of:
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a) positioning a superabsorbent polymer adjacent a barrier layer in a pattern to form at least one region including the superabsorbent polymer and at least one region substantially devoid of said superabsorbent polymer extending essentially completely across the barrier layer, thereby providing the region substantially devoid of superabsorbent polymer with greater tear resistance than the region including the superabsorbent polymer; and
b) attaching a cover layer substantially parallel to and substantially coextensive with said barrier layer, thereby interposing said superabsorbent polymer between the barrier layer and the cover layer. - View Dependent Claims (12)
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13. A method of making an absorbent article comprising the steps of:
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a) positioning a liquid comprising a superabsorbent precursor adjacent a barrier layer in a pattern to form at least one region including the superabsorbent precursor and at least one region substantially devoid of the superabsorbent precursor extending essentially completely across the barrier layer, thereby providing the region substantially devoid of superabsorbent polymer with greater tear resistance than the region including the superabsorbent polymer;
b) converting the superabsorbent precursor to a superabsorbent polymer, thereby forming at least one region including the superabsorbent polymer and at least one region devoid of the superabsorbent polymer; and
c) coupling a cover layer to the barrier layer, thereby interposing the superabsorbent polymer between the barrier layer and the cover layer. - View Dependent Claims (14)
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15. An absorbent article comprising:
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a barrier layer;
a cover layer extending substantially parallel to said barrier layer;
an absorbent layer interposed between said cover layer and said barrier layer; and
a superabsorbent polymer applied in liquid form to said absorbent layer, said superabsorbent polymer being applied in a pattern configured to distribute fluid in said absorbent article, wherein portions of said absorbent layer are at least partially coated with said superabsorbent polymer and other portions of said absorbent layer are substantially free of said superabsorbent polymer.
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16. An absorbent underpad comprising:
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a barrier layer;
a cover layer extending substantially parallel to said barrier layer;
a tissue layer interposed between said cover layer and said barrier layer; and
a superabsorbent polymer applied in liquid form to said absorbent layer, said superabsorbent polymer being applied in a pattern configured to distribute fluid in said absorbent article, wherein portions of said absorbent layer are at least partially coated with said superabsorbent polymer and other portions of said absorbent layer are substantially free of said superabsorbent polymer.
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Specification