HIGH MOLECULAR WEIGHT POLYAMIDES AND COPOLYAMIDES WITH UNIFORM RV AND LOW GEL CONTENT

A customizable polyamide polymer, in particular Nylon 66, Nylon 6, and copolyamides, having a high molecular weight, excellent color, and low gel content is disclosed. In particular, disclosed is a polymer having a relative viscosity greater than 50 as measured in a 90% strength formic acid solution...

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Bibliographische Detailangaben
Hauptverfasser: WANG, Chie-Hsiung, SCHWIER, Chris, E, SEN, Ashish, ZABCIK, J., Marty, TRASK, Craig, A, UZUNPINAR, Cihan, POLK, James, E
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A customizable polyamide polymer, in particular Nylon 66, Nylon 6, and copolyamides, having a high molecular weight, excellent color, and low gel content is disclosed. In particular, disclosed is a polymer having a relative viscosity greater than 50 as measured in a 90% strength formic acid solution; consistent viscosity with a standard deviation of less than 1; a gel content no greater than 50 ppm as measured by insolubles larger than 10 micron; an optical defect content of less than 2,000 parts per million (ppm) as measured by optical control system (OCS). The polymer can be made into monofilaments or a multifilament yarn.