Piperidinyl phthalimide hindered amine light stabilizers

Piperidinyl phthalimide hindered amine light stabilizers

Hindered amine light stabilizers are provided in which the hindered amine is contained in a unit of formula where X is and R1, R2, R3, and A are as defined as in the Summary of the Invention. Unique polymeric and non-polymeric compounds containing this unit are useful as additives for the stabilizat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MYERS, TERRY N
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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:Hindered amine light stabilizers are provided in which the hindered amine is contained in a unit of formula where X is and R1, R2, R3, and A are as defined as in the Summary of the Invention. Unique polymeric and non-polymeric compounds containing this unit are useful as additives for the stabilization of polymeric compositions which are normally subject to thermal, oxidative or actinic light degradation.