Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1981-05-21
1983-02-15
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
81155, 428373, 428394, 428400, D02G 300
Patent
active
043741754
ABSTRACT:
The present invention relates to novel water-swellable fibers, of which at least a part of the fiber outer layer portion is composed of a hydrogel, and which fibers have latent or visualized crimps and combine a high degree of water-swellability with excellent physical properties, and to a process for producing the same. The invention also relates to an industrially advantageous process for producing novel water-swellable fibers, of which at least a part of the fiber outer layer portion is hydrogelled, said process comprising putting a prescribed amount of a specific alkali on fibers composed of an acrylonitrile polymer and then heat-treating the fibers.
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patent: 3728072 (1973-04-01), Orito et al.
patent: 3733386 (1973-05-01), Shimoda et al.
patent: 3929946 (1975-12-01), Orito et al.
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Japan Exlan Co., Ltd.
Kendell Lorraine T.
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