Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Staple length fiber
Patent
1996-12-04
2000-09-26
Edwards, Newton
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Staple length fiber
428364, D02G 300
Patent
active
061240338
ABSTRACT:
This invention is a poly(vinyl alcohol) microfibrillar short fiber and its method of preparation, especially manufacturing a microfibrillar poly(vinyl alcohol) short fiber having high tensile strength, high tensile modulus, high fineness, and excellent alkali resistance using a special saponifying agent and through an advanced mechanical shearing operation in the course of saponification of poly(vinyl pivalate) to poly(vinyl alcohol) without requiring spinning, drawing, and heat treatment.
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patent: 4885058 (1989-12-01), Hani et al.
patent: 5238995 (1993-08-01), Fukunishi et al.
Yamamoto et al. "Synthesis of High-Molecular Weight Poly(vinyl alcohol) of Various Tactic Contents through Photo-Emulsion Copolymerization of Vinyl Acetate and Vinyl Pivalate" Poly. Journal, V. 24, No. 1, pp. 115-119, 1992.
Yamamoto et al. Saponification of High Molecular Weight Poly(vinyl pivalate), Polymer Journal, vol. 23, No. 3, pp. 185-188, 1991.
Choi Young Keun
Ha Wan Shik
Lyoo Won Seok
Edwards Newton
Ha Wan Shik
Lyoo Wan Seok
Sunkyong Industries Co., Ltd.
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