Copolyester fiber

An improved copolyester fiber capable of being dyed with cationic dyes and having an excellent brightness, heat resistance and a satisfactory mechanical strength comprises a copolyester resin comprising a polymerization product of at least one aromatic dicarboxylic acid compound, at least one alkyle...

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Bibliographic Details
Main Authors OHWAKI, SHINJI, YAMADA, SETSUO, YAMADA, HIRONORI, IOHARA, KOHICHI, OGAWA, KIMIHIRO, SUZUKI, TOGI
Format Patent
LanguageEnglish
French
German
Published 31.08.1988
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:An improved copolyester fiber capable of being dyed with cationic dyes and having an excellent brightness, heat resistance and a satisfactory mechanical strength comprises a copolyester resin comprising a polymerization product of at least one aromatic dicarboxylic acid compound, at least one alkylene diol compound and at least one quaternary phosphonium organic sulfonate of the formula (I): wherein A = an aromatic or aliphatic radical, X = H or an ester-forming organic radical, X = an ester-forming organic radical, R , R , R and R = an alkyl or aryl radical, n = 1 or more, and having an [ eta ]f of 0.5 or more, the copolyester fiber having a silk factor of 25 or more and exhibiting the number of scission of backbone chains of the copolyester molecules of 140 x 10 or less per 10 g of fiber when wet heat-treated in a solution of 0.4 g/l of acetic acid in distilled water at 130 DEG C for 60 minutes.
Bibliography:Application Number: EP19880100639