MIXTURES OF POLYPROPYLENE AND COPOLYMERS OF PROPYLENE WITH ETHYLENE AND CARBON BLACK

Polypropylene and co-polymers of polypropylene with ethylene, containing 0.1 - 10 percent by weight of carbon black with a specific surface of 20 to 1,100 m /g and modified by 0.5 to 6 percent by weight, related to carbon black of dry mass of sulphite liquors from the cellulose production, killed by...

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Hauptverfasser:	BALABAN LUBOS CSC.,CS, KLIMESOVA JITKA ,CS, SULC ZDENEK ,CS, RYSAVY DRAHOMIR CSC.,CS
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:	Polypropylene and co-polymers of polypropylene with ethylene, containing 0.1 - 10 percent by weight of carbon black with a specific surface of 20 to 1,100 m /g and modified by 0.5 to 6 percent by weight, related to carbon black of dry mass of sulphite liquors from the cellulose production, killed by peroxide, hydrated lime and/or by alkali hydroxide and of 0.1 to 1 percent by weight of phenol antioxidants, which contain in the ortho-position to hydroxyl at least one tertiary butyl group. They are synergetically stabilized against heat-oxidative degradation.