JPH0127101B

JPH0127101B

Thermoplastic copolyetherester elastomers are stabilized against heat and light aging by incorporating into the copolyetherester effective concentrations of a phenolic antioxidant and a hindered amine photostabilizer of the formula where R1 is hydrogen or an alkyl radical of 1-12 carbon atoms, R2 an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: GYUNTAA KURUTO HEESHERE
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:Thermoplastic copolyetherester elastomers are stabilized against heat and light aging by incorporating into the copolyetherester effective concentrations of a phenolic antioxidant and a hindered amine photostabilizer of the formula where R1 is hydrogen or an alkyl radical of 1-12 carbon atoms, R2 and R3 are alkyl radicals of 1-12 carbon atoms, benzyl, or 3,5-di-tert-butyl-4-hydroxybenzyl.