Fibers and paper pulp based on chemical composition of poly (methyl vinyl ether-co-maleate), polyols and cellulose fibers

摘要

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(methyl vinyl ether-co-maleate) copolymer, such as the acid form of a 1:1 (molar) poly(methyl vinyl ether-co-maleate) copolymer, preferably having number average molecular weight of about 67,000-80,000; and (c) a polyol, such as polyethylene glycol; also disclosed are methods for making such fibers, especially evaporatively depositing an intimate mixture of the copolymer and polyol on the discrete fiber followed by thermally crosslinking at specific temperatures for limited periods; absorbent paper which can be made by wet-laying the fiber, especially in admixture with conventional fiber; and derivative paper structures, such as multiply disposable absorbent towels.