Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1980-06-06
1981-05-05
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428373, 428374, 525178, 525183, D02G 300
Patent
active
042659701
ABSTRACT:
An acrylic fiber having improved basic dyeability and hot/wet properties, the fiber being made up of a blend of (a) at least 60 weight percent of a polymer of at least 35 weight percent of acrylonitrile copolymerized with up to 65 weight percent of at least one other mono-olefinic monomer and a minor amount of a sulfonated vinyl monomer with (b) 0.5 to 40 weight percent of the polyterephthalamide of a mixture of 2,2,4 and 2,4,4 trimethyl hexamethylene diamine, the fiber being made up of a two-phase heterogeneous suspension of the polyterephthalamide in a continuous phase of the acrylic polymer. Without the sulfonated vinyl monomer the fiber will have superior hot/wet properties but will show no improvement in dyeability, the dyeability of the fiber being enhanced only when the sulfonated vinyl monomer is present as a part of the acrylic polymer chain.
REFERENCES:
patent: 2632748 (1953-03-01), Caldwell
Broad, Jr. Robert L.
Kendell Lorraine T.
Monsanto Company
Whisler John W.
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