REDUCED FURFURAL CONTENT IN POLYACRYLIC ACID CROSSLINKED CELLULOSE FIBERS

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United States of America Patent

SERIAL NO

14271146

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Abstract

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Bleached polycrylic acid crosslinked cellulose fibers with reduced furfural content are disclosed. The reduced furfural content is accompanied by a strong reduction of malodor associated with crosslinked fibers. Methods of furfural reduction include treatment with hydrogen peroxide in the absence of alkaline or other bleaching agents subsequent to curing polyacrylic acid crosslinked cellulose fibers. Some embodiments of treated polycrylic acid crosslinked cellulose fibers have a furfural content lower than 1.3 ppm. In some embodiments, the reduction of furfural content of the treated crosslinked fibers compared to untreated crosslinked fibers is at least 55%. In some embodiments, furfural content decreases with aging of the treated crosslinked fibers.

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INTERNATIONAL PAPER COMPANY6400 POPLAR AVENUE MEMPHIS TN 38197

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beruda, Holger Schwalbach, DE 69 3961
Busam, Ludwig Schwalbach, DE 31 2835
Endres, Joerg Schwalbach, DE 15 56
Stoyanov, Angel Federal Way, US 25 99

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