IP receives US patent for 'Modified Kraft Fibers', a method of producing modified pulp

ALEXANDRIA, Virginia , December 17, 2012 () – United States Patent no. 8,328,983, issued on Dec. 11, was assigned to International Paper Co. (Memphis, Tenn.).

"Modified Kraft Fibers" was invented by Zheng Tan (Mason, Ohio), Gopal Goyal (Mason, Ohio) and Alexander A. Koukoulas (Walpole, Mass.).

According to the abstract released by the U.S. Patent & Trademark Office: "A method of producing a modified pulp for use in paper or paper web products, the method comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp."

The patent was filed on May 24, 2006, under Application No. 11/439,659.

For further information 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=8328983&OS=8328983&RS=8328983

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