Absorbent fibers and process for their preparation

Details Absorbent fibers and process for their preparation Absorbent fibers and process for their preparation

1973-02-12

1976-09-28

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

81301, 128156, 128284, 264205, C08F 844

Patent

active

039830950

ABSTRACT:
Water-insoluble, water-swellable fibers adapted to bind aqueous fluids such as body exudates are prepared by spinning fibers from an organic solvent solution of a copolymer of maleic anhydride with suitable vinyl monomers. The copolymer solution also contains a small amount of a polyfunctional cross-linking agent such as a glycol or alkylene diamine which reacts to cross-link the copolymer chains when the fibers are heated and dried. The cross-linked copolymer fibers are then rendered hydrophilic and water-swellable by reaction with ammonia or an alkali metal hydroxide.

REFERENCES:
patent: 3085986 (1963-04-01), Muskat
patent: 3398092 (1968-08-01), Fields et al.
patent: 3642726 (1972-02-01), Heilman
patent: 3678016 (1972-07-01), Zimmerman et al.
patent: 3810468 (1974-05-01), Harper

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