ABSORBENT CORE HAVING TUBE-SHAPED SWELLING CHAMBER

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United States of America Patent

SERIAL NO

15639285

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Abstract

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An absorbent cores includes absorbent material enclosed a core wrap which comprises a liquid permeable substrate layer. The core contains from about 87% to about 100% of superabsorbent polymer and a tube-shaped swelling chamber having a length to width aspect ratio of less than or equal to about 5:1. The area of the core is at least twice the area of the swelling chamber, and the core contains a water responsive immobilizing agent to immobilize the superabsorbent polymer prior to water insult. The tube-shaped swelling chamber is a portion of the absorbent core containing superabsorbent polymer that is delimited by a plurality of continuous permanent seals that each join together overlapping portions of the core wrap and prevent superabsorbent polymer from moving across the seals.

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Patent Owner(s)

Patent OwnerAddress
THE PROCTER & GAMBLE COMPANYONE PROCTER & GAMBLE PLAZA ATTN CHIEF PATENT COUNSEL CINCINNATI OH 45202

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
EHRNSPERGER, Bruno Johannes Bad Soden, DE 168 7155
PERI, Andrea Kronberg, DE 37 367
ZIPF, Christine Elisabeth Lauds-Konigshofen, DE 15 105

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