Process for producing coloured polypropylene composition having a high content of ß-modification

The invention relates to a novel process for producing coloured polypropylene compositions having a high content of ²-modification, wherein polypropylene is melt blended with at least one inorganic pigment and at least one ²-nucleating agent, wherein a1) polypropylene is melt blended with at least o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	RUEMER, FRANZ
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	BLASTING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a novel process for producing coloured polypropylene compositions having a high content of ²-modification, wherein polypropylene is melt blended with at least one inorganic pigment and at least one ²-nucleating agent, wherein a1) polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain a coloured polypropylene and a2) the coloured polypropylene is melt blended with at least one ²-nucleating agent or with a second concentrate comprising the at least one ²-nucleating agent to obtain the coloured ²-nucleated polypropylene composition or b1) polypropylene is melt blended with at least one ²-nucleating agent or with a second concentrate comprising the at least one ²-nucleating agent to obtain a ²-nucleated polypropylene and b2) the ²-nucleated polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain the coloured ²-nucleated polypropylene composition or c) a third concentrate is produced by melt blending a first concentrate comprising the at least one inorganic pigment and a second concentrate comprising the at least one ²-nucleating agent and the polypropylene is melt blended with the third concentrate to produce the coloured ²-nucleated polypropylene composition or d) a first concentrate comprising the at least one inorganic pigment and a second concentrate comprising the at least one ²-nucleating agent are melt blended with the polypropylene to obtain the coloured ²-nucleated polypropylene composition.