K-C Worldwide issued US patent for 'oil absorbing material and processes of recycling absorbent articles to produce the same'

Nevin Barich

Nevin Barich

ALEXANDRIA, Virginia , October 14, 2013 () – United States Patent no. 8,550,386, issued on Oct. 8, was assigned to Kimberly-Clark Worldwide Inc. (Neenah, Wis.).

"Oil absorbing material and processes of recycling absorbent articles to produce the same" was invented by Vasily A. Topolkaraev (Appleton, Wis.), Ryan J. McEneany (Appleton, Wash.), Neil T. Scholl (Neenah, Wis.) and Tom Eby (Greenville, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An oil absorbing material is generally provided. The oil absorbing material can includes sorbent particles having an average aspect ratio of about 5 to about 500 and a mean average particle diameter of about 10 .mu.m to about 1 millimeter. The oil absorbing material comprises polypropylene, polyethylene, inorganic filler particles, and absorbent core material. In one embodiment, the sorbent particles can have an average specific surface area of about 0.25 to about 5.0 m.sup.2/g and can have a bulk density that is about 0.01 g/cm.sup.3 to about 0.8 g/cm.sup.3. Processes of making the oil absorbing material are also provided via a solid-state shear pulverization recycling process transforming absorbent article waste into the oil absorbing material. The process can include pulverizing the absorbent article waste to form sorbent particles while cooling the absorbent article waste in an amount sufficient to maintain the absorbent article waste in a solid state."

The patent was filed on Dec. 22, 2010, under Application No. 12/976,424.

*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=8550386&OS=8550386&RS=8550386

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(c) 2013 US Fed News (HT Syndication)

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