VERFAHREN ZUR HERSTELLUNG VON GEGEN LICHTEINWIRKUNG STABILISIERTEM, AMORPHEM POLYAMID

1305954 Light-stabilized polyamides DYNA. MIT NOBEL AG 17 Sept 1970 [18 Sept 1969] 44537/70 Heading C3R A moulding composition contains an amorphous polyamide (P), and, as light-stabilizer, a C 3-5 lactone (L). Based on (P), there may be 0À3-5À5% wt. (L). (L) may be γ-butyro-, γ- valero-, 8-valero,...

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Hauptverfasser:	SCHNEIDER JOHANNES..DR, PUNGS WOLFGANG..DR
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Zusammenfassung:	1305954 Light-stabilized polyamides DYNA. MIT NOBEL AG 17 Sept 1970 [18 Sept 1969] 44537/70 Heading C3R A moulding composition contains an amorphous polyamide (P), and, as light-stabilizer, a C 3-5 lactone (L). Based on (P), there may be 0À3-5À5% wt. (L). (L) may be γ-butyro-, γ- valero-, 8-valero, or, preferably, #-propiolactone. The ingredients may be mixed in a fluidization mixer, followed by melt-mixing in a single-screw extruder. Use.-Transparent mouldings formed by injection or extrusion.