UV-stabile Zusammensetzungen

This invention relates to a method for increasing the ultraviolet light stability of articles made from macromolecular materials comprising: forming a flame-retarded formulation containing macromolecular material and a mixture of (i) a first alkylenebis(tetrabromophthalimide) flame retardant having...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PETTIGREW, ALEXANDER F, LANDRY, SUSAN D, REED, JON SHANNON
Format:	Patent
Sprache:	ger
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:	This invention relates to a method for increasing the ultraviolet light stability of articles made from macromolecular materials comprising: forming a flame-retarded formulation containing macromolecular material and a mixture of (i) a first alkylenebis(tetrabromophthalimide) flame retardant having a yellowness index (YI) value ranging from 20 to 40 as determined by ASTM D-1925; and (ii) a second alkylenebis(tetrabromophthalimide) flame retardant having a yellowness index (YI) value (ASTM D-1925) ranging from 2 to 15 whereby the uv stability of a test plaque made from the flame-retarded formulation is greater than the arithmetic average of the uv stabilities of a test plaque made from a flame-retarded formulation containing (i) but not (ii) and of a test plaque made from a flame-retarded formulation containing (ii) but not (i).