ROOM TEMPERATURE SOLID CATALYST COMPOSITION BASED ON METAL LACTAMATE FOR PRODUCING NYLON BLOCK COPOLYMER

Catalyst composition solid at room temperature, based on alkali metal lactamate, characterized in that the content of methanol, ethanol and η-propanol is lower than 0,2 wt.% and that 0.1-5 wt.% of another alcohol is present, chosen from isopropanol or a branched or unbranched aliphatic or aromatic a...

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Hauptverfasser: YOZEFU YOHANESU MARIA BONGERUSU, ARUBERUTO AANORUTO BUAN GEENEN
Format: Patent
Sprache:eng
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Zusammenfassung:Catalyst composition solid at room temperature, based on alkali metal lactamate, characterized in that the content of methanol, ethanol and η-propanol is lower than 0,2 wt.% and that 0.1-5 wt.% of another alcohol is present, chosen from isopropanol or a branched or unbranched aliphatic or aromatic alcohol with 4-18 carbon atoms, which alcohol has a boiling point of 80◊C to 250◊C.This catalyst composition is suitable for lactam polymeriza­tion, especially in RIM techniques.Nylon block copolymer prepared with said catalyst composition and articles made from this nylon block copolymer.