Polyurethane hydrogel fibers and tapes and composites with natur

Details Polyurethane hydrogel fibers and tapes and composites with natur Polyurethane hydrogel fibers and tapes and composites with natur

1974-06-18

1976-02-24

Cockeram, H. S.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

260 25AY, 260 25AD, 260 775SP, 264184, 428425, B32B 2708, C08G 1814, B32B 2740

Patent

active

039405427

ABSTRACT:
Method for the production of water swellable, lightly crosslinked, hydrogel polymer tapes or fibers comprises extruding an isocyanato terminated prepolymer of a poly(alkyleneoxy) polyol and an organic diisocyanate into a coagulant or crosslinking bath containing water or organic polyamine as the crosslinker.

REFERENCES:
patent: 3149000 (1964-09-01), Beicos
patent: 3483015 (1969-12-01), Fukushima et al.
patent: 3492154 (1970-01-01), Einstman
patent: 3562374 (1971-02-01), Okamoto et al.
patent: 3666542 (1972-05-01), Kigane et al.
patent: 3694396 (1972-09-01), Nakahara et al.
patent: 3781231 (1973-12-01), Janssen et al.
patent: 3789027 (1974-01-01), Traeubel et al.
patent: 3821136 (1974-06-01), Hudgin et al.
patent: 3822238 (1974-07-01), Blair et al.

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