Polymeric polycarboxylic acid crosslinked cellulosic fibers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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525 5421, 524 35, C08L 102

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active

059985119

ABSTRACT:
Cellulosic fibers intrafiber crosslinked with a polymeric polycarboxylic acid crosslinking agent are disclosed. In one embodiment, the polymeric polycarboxylic acid is polyacrylic acid and, in another embodiment, the polycarboxylic acid is polymaleic acid. Methods for forming cellulosic fibers having stable intrafiber crosslinks and for forming crosslinked cellulosic fibers having low knot level are also disclosed.

REFERENCES:
patent: 3395708 (1968-08-01), Hervey et al.
patent: 3440135 (1969-04-01), Chung
patent: 3554862 (1971-01-01), Hervey et al.
patent: 3658613 (1972-04-01), Steiger
patent: 3677886 (1972-07-01), Forsblad et al.
patent: 3731411 (1973-05-01), Barber et al.
patent: 3819470 (1974-06-01), Shaw et al.
patent: 4124439 (1978-11-01), Dessauer
patent: 4144122 (1979-03-01), Emanuelsson et al.
patent: 4303471 (1981-12-01), Laursen
patent: 4351699 (1982-09-01), Osborn, III
patent: 4431481 (1984-02-01), Drach et al.
patent: 4476323 (1984-10-01), Hellsten et al.
patent: 4822453 (1989-04-01), Dean et al.
patent: 4853086 (1989-08-01), Graef
patent: 4889595 (1989-12-01), Herron et al.
patent: 4913773 (1990-04-01), Knudsen et al.
patent: 4935022 (1990-06-01), Lash et al.
patent: 5137537 (1992-08-01), Herron et al.
patent: 5183707 (1993-02-01), Herron et al.
patent: 5190563 (1993-03-01), Herron et al.
patent: 5217445 (1993-06-01), Young et al.
patent: 5225047 (1993-07-01), Graef et al.
patent: 5256746 (1993-10-01), Blankenship et al.
patent: 5308896 (1994-05-01), Hansen et al.
patent: 5352480 (1994-10-01), Hansen et al.
patent: 5427587 (1995-06-01), Arkens et al.
patent: 5447977 (1995-09-01), Hansen et al.
patent: 5496477 (1996-03-01), Tang et al.
patent: 5549791 (1996-08-01), Herron et al.
patent: 5755828 (1998-05-01), Westland
Neogi, A.N., et al., "Wet Strength Improvement via Fiber Surface Modification," Tappi, vol. 63, No. 8, Aug. 1980, pp. 86-88.
Blanchard, E.J., et al., "Dyeable Durable Press Cottons Finished with Citric Acid and Nitrogenous Additives," International Conference, American Association of Textile Chemists and Colorists, 1992.
"HBA--Weyerhaeuser Paper Company Introduces High Bulk Additive," brochure available from Weyerhaeuser Company, Tacoma, WA, 1990.
Yang Charles Q., "Infrared Spectroscopy Studies of the Cyclis Anhydride as the Intermediate for the Ester Crosslinking of Cotton Cellulose by Polycarboxylic Acids. I. Identification of the Cyclic Anhydride Intermediate," Journal of Polymer Science: Part A: Polymer Chemistry, vol. 31, 1993, pp. 1187-1193.

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