P&G issued US patent for 'comfortable diaper'; patent filed on March 13, 2007

ALEXANDRIA, Virginia , July 2, 2014 () – United States Patent no. 8,766,031, issued on July 1, was assigned to The Procter & Gamble Co. (Cincinnati).

"Comfortable diaper" was invented by Uwe Jurgen Becker (Euskirchen, Germany), Ludwig Busam (Huenstetten, Germany), Bruno Johannes Ehrnsperger (Bad Soden, Germany), Torsten Lindner (Kronberg, Germany), Siegfried Link (Schleiden, Germany), Volker Maier (Euskirchen, Germany), Sanaul Kabir Siddiquee (Brussels), Gabriele Stiehl (Schwalbach, Germany) and Thomas Tombuelt (Nettersheim, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An absorbent article, preferably a disposable absorbent article such as a diaper, is disclosed that provides an improved immobilization of absorbent polymer material when the article is fully or partially urine loaded. This absorbent core is useful for providing an absorbent article of increased wearing comfort. Specifically disclosed is an absorbent core useful for an absorbent article comprising a substrate layer and absorbent material, the absorbent material comprising an absorbent polymer material, the absorbent material optionally comprising absorbent fibrous material, the absorbent fibrous material not representing more than 20% of the weight of absorbent polymer material, wherein the absorbent material is immobilized when wet such that the absorbent core achieves a wet immobilization of more than 50%, preferably of more than 60%, 70%, 80% or 90% according to the Wet Immobilization Test described herein."

The patent was filed on March 13, 2007, under Application No. 11/717,235.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=8766031&OS=8766031&RS=8766031

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