Aramid copolymer yarn having low residual sulfur

The present invention concerns yarn comprising polymer, the polymer comprising imidazole groups, the yarn having a sulfur content of 0.01 to 3.0 percent by weight, based on weight of the yarn, the yarn having a tenacity of 30 cN/dtex (33.3 gpd) or higher.

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Bibliographic Details
Main Authors Allen, Steven R, Gabara, Vlodek, Newton, Christopher William, Rodini, David J, Lowery, Joseph Lenning
Format Patent
LanguageEnglish
Published 22.03.2022
Subjects
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
NATURAL OR ARTIFICIAL THREADS OR FIBRES
ORGANIC MACROMOLECULAR COMPOUNDS
SPINNING
TEXTILES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:The present invention concerns yarn comprising polymer, the polymer comprising imidazole groups, the yarn having a sulfur content of 0.01 to 3.0 percent by weight, based on weight of the yarn, the yarn having a tenacity of 30 cN/dtex (33.3 gpd) or higher.
Bibliography:Application Number: US201214371443