HYDROPHILE POLYESTERMASSE, VERFAHREN ZU IHRER HERSTELLUNG SOWIE IHRE VERWENDUNG ALS FADENUND FASERMATERIAL

The invention relates to a hydrophilic moulding compound of homopolyester and/or copolyester which contains 1 to 20 percent by weight of an alkaline and/or alkaline-earth salt of salt-forming polymer and/or copolymers from ethylenic unsaturated monomers as finely dispersed filling material, having i...

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Bibliographische Detailangaben
Hauptverfasser: MAEGERLEIN HELMUT DR, MEYER GERHARD DR, DIAMANTOGLOU MICHAEL DR, BRODOWSKI WALTER DR, GRIMM WOLFGANG DR
Format: Patent
Sprache:ger
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Zusammenfassung:The invention relates to a hydrophilic moulding compound of homopolyester and/or copolyester which contains 1 to 20 percent by weight of an alkaline and/or alkaline-earth salt of salt-forming polymer and/or copolymers from ethylenic unsaturated monomers as finely dispersed filling material, having in particualr a maximum particle size of 1 um, the salt-forming polymers being composed in particular of the following single monomers or mixtures thereof: vinyl-sulfonic acid, acrylamidoalkylene-sulfonic acid, sulfonated styrene, acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, crotonic acid, vinyl-phosphonic acid, monoalkyl ester of maleic acid, monoalkyl ester of fumaric acid. The invention also relates to a process according to which the salts are preferably added to the polycondensation mixture of the polyester starting materials before and/or during poly-condensation as a suspension in polyhydric alcohol. The moulding compound is preferably used for making filament yarns, or staple fibers.