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Patents

Absorbent article having increased absorption and retention capacity

By: Tim Wright

Editor-in-Chief, Contract Pharma

US Patent No.: 8,581,019 B2
Inventor(s): Giovanni Carlucci, Chieti, Italy; and Alessandro Gagliardini, Villa Vomano, Italy.
Company: The Procter and Gamble Company, Cincinnati, Ohio, U.S.
Filed: 10/20/06
Issued: 11/12/13

An absorbent article for absorption of proteinaceous or serous body fluids, comprising a polyacrylate based material synthesized from acrylic acid monomers, the polyacrylate based material comprising a polyacrylate or a polymethacrylate and having an extractable fraction of the polyacrylate or the polymethacrylate of between 32% and 80% by weight, evaluated according to the Extractables test method described herein, wherein said extractable fraction has an average molecular weight of at least 30,000 Dalton, wherein the average molecular weight of the extractable fraction comprises polyacrylates, and wherein said polyacrylate based material has a retention capacity of at least 30 g/g, said retention capacity evaluated according to the Centrifuge Retention Capacity test described herein.

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