MULTIPHASE POLYMERIC COMPOSITION USEFUL FOR PREPARING CABLE INSULATION

Cable insulation layers having excellent mechanical and electrical properties are prepared from a composite free of plasticizer and comprising a heterogeneous, polymeric composition comprising (A) a polypropylene matrix, and (B) a propylene copolymer dispersed within the matrix and (i) comprising mo...

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Bibliographische Detailangaben
Hauptverfasser:	WASSERMAN, SCOTT, H, HAN, SUH, J, MENDELSOHN, ALFRED
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CONDUCTORS ELECTRICITY INSULATORS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Cable insulation layers having excellent mechanical and electrical properties are prepared from a composite free of plasticizer and comprising a heterogeneous, polymeric composition comprising (A) a polypropylene matrix, and (B) a propylene copolymer dispersed within the matrix and (i) comprising more than 80 weight percent (wt %) of units derived from propylene, and (ii) having a weight average particle size of less of than 1 micron (μm). The insulation layer is not only environmental friendly due to the lack of placticizer, but it also maintains its physical and operational integrity at temperatures of at least 90° C.