Fibers and pulps for papermaking based on chemical...

Details Fibers and pulps for papermaking based on chemical... Fibers and pulps for papermaking based on chemical...

D - Textiles, Paper

21

H

D21H 17/37 (2006.01) A61F 13/15 (2006.01) A61L 15/28 (2006.01) B32B 33/00 (2006.01) D21H 11/20 (2006.01)

Patent

CA 2072120

Disclosed is a fiber comprising, chemically bonded together, (a) a conventional cellulosic fiber, such as a kraft fiber or a chemithermomechanical pulp fiber; (b) poly(acrylate-co-itaconate) copolymer, such as the acid form of a poly(acrylate-co-itaco- nate) copolymer comprising 90-95 mole% acrylate and 5-10 mole% itaconate having weight average molecular weight of about 600,000-900,000; and (c) a polyol, such as polyethylene glycol; also disclosed are methods for making such fibers, especiallv eva- poratively depositing an intimate mixture of the copolymer and polyol on the fiber followed by thermallv crosclinking at specific temperatures for limited periods; absorbent paper which can be made by wet-laying the fiber, especially in admixture with con- ventional fiber; and derivative paper structures, such as multi-ply disposable absorbent towels.

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