Reduced furfural content in polyacrylic acid crosslinked cellulose fibers
AssigneeInternational Paper Company
InventorsAngel Stoyanov, Joerg Endres, Holger Beruda, Ludwig Busam
Life of this patent
Estimating the term…
Loading patent…
AssigneeInternational Paper Company
InventorsAngel Stoyanov, Joerg Endres, Holger Beruda, Ludwig Busam
Estimating the term…
Bleached polyacrylic 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 polyacrylic 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.
A method of reducing the furfural content of polyacrylic acid crosslinked cellulosic fibers, the method comprising:
A method of reducing the malodor associated with the presence of furfural in polyacrylic acid crosslinked fibers comprising:
Dependencies are inferred from the claim text.