POLIMERI E PROCEDIMENTO PER LA MISCELA DI STABILIZZAZIONE PER PREPARAZIONE DI QUESTA MISCELA

POLIMERI E PROCEDIMENTO PER LA MISCELA DI STABILIZZAZIONE PER PREPARAZIONE DI QUESTA MISCELA

A stabilization mixture is described for use with polymeric materials, the mixture evidencing high stabilization efficiency against the effect of ultraviolet radiation which being of low toxicity. The mixture comprises from 80-100%, by weight, of a mixture of 2,2,6,6-tetramethyl-4-piperidinol esters...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MARIA HRACHOVCOVA, MILAN KARVAS CSC, ALOJZ BALOGH, JAN MASEK, JULIUS DURMIS CSC, MARTA POVAZANCOVA, PAVOL CAUCIK
Format: Patent
Sprache:ita
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A stabilization mixture is described for use with polymeric materials, the mixture evidencing high stabilization efficiency against the effect of ultraviolet radiation which being of low toxicity. The mixture comprises from 80-100%, by weight, of a mixture of 2,2,6,6-tetramethyl-4-piperidinol esters and from 0-20%, by weight, of the ammonium carboxylates thereof. The mixture is prepared by heating derivatives of 2,2,6,6-tetramethyl-4-piperidinol with mixtures of stearic, palmitic, heptadecanic, myristic and oleic acids at temperatures ranging from 150-260 degrees C.