Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1980-06-06
1981-11-24
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
57243, 428372, 428373, 428376, D02G 300
Patent
active
043025099
ABSTRACT:
Textile-quality multifilament yarns that are highly sorptive for organic vapors, mists and solutes are described. Each filament comprises a microporous polymeric sheath filled with a core of sorptive material. In a multifilament spinneret having a hollow needle in each orifice, a slurry containing the sorptive material is supplied to each needle, and a blend of a polymeric material and a pore-forming material is supplied to the orifice externally of the needle. The spun composite fibers are drawn and subsequently extracted to porosify the sheath and to activate the sorptive property of the cores.
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Klein, E. et al., "Preparation of High Clearance Sorbent-Filled Hollow Fibers", Gulf South Research Institute, Jul. 19, 1977.
Coplan Myron J.
Lopatin George
Albany International Corp.
Kendell Lorraine T.
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