Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1990-04-20
1992-05-05
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
264147, 264185, 428357, 428359, D02G 300
Patent
active
051106787
ABSTRACT:
Provided is a high-performance PVA fiber and its production.
Each filament of the PVA fiber of the present invention having a structure comprising an aggregate of substantially innumerable fibrils, the fiber has high strength, elastic modulus, and resistances to fatigue, hot water and chemicals and can be pulpified while keeping its excellent features such as high strength. The PVA fiber of the present invention cannot, even drawn to a high ratio, be readily whitened by virtue of its fibril-aggregate structure, and can hence be made still higher in performances. The PVA fiber can be obtained by adding to a PVA solution a relatively large amount of surface active agent, and wet or dry-jet-wet spinning the thus prepared dope solution into an aqueous alkaline coagulating bath.
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patent: 4698194 (1987-10-01), Tanaka et al.
patent: 4713290 (1987-12-01), Kwon et al.
patent: 4765937 (1988-08-01), Hyon et al.
patent: 4851168 (1989-07-01), Graiver et al.
Akiyama Akitsugu
Kubotsu Akira
Miyazaki Hirotoshi
Mizobe Akio
Nagamatu Kenji
Kendell Lorraine T.
Kuraray Company Limited
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